Merge 4.9.144 into android-4.9
Changes in 4.9.144
Kbuild: suppress packed-not-aligned warning for default setting only
disable stringop truncation warnings for now
test_hexdump: use memcpy instead of strncpy
kobject: Replace strncpy with memcpy
unifdef: use memcpy instead of strncpy
kernfs: Replace strncpy with memcpy
ip_tunnel: Fix name string concatenate in __ip_tunnel_create()
drm: gma500: fix logic error
scsi: bfa: convert to strlcpy/strlcat
staging: rts5208: fix gcc-8 logic error warning
kdb: use memmove instead of overlapping memcpy
x86/power/64: Use char arrays for asm function names
iser: set sector for ambiguous mr status errors
uprobes: Fix handle_swbp() vs. unregister() + register() race once more
MIPS: ralink: Fix mt7620 nd_sd pinmux
mips: fix mips_get_syscall_arg o32 check
IB/mlx5: Avoid load failure due to unknown link width
drm/ast: Fix incorrect free on ioregs
drm: set is_master to 0 upon drm_new_set_master() failure
scsi: scsi_devinfo: cleanly zero-pad devinfo strings
ALSA: trident: Suppress gcc string warning
scsi: csiostor: Avoid content leaks and casts
kgdboc: Fix restrict error
kgdboc: Fix warning with module build
binder: fix proc->files use-after-free
svm: Add mutex_lock to protect apic_access_page_done on AMD systems
drm/mediatek: fix OF sibling-node lookup
Input: xpad - quirk all PDP Xbox One gamepads
Input: matrix_keypad - check for errors from of_get_named_gpio()
Input: elan_i2c - add ELAN0620 to the ACPI table
Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15ARR
Input: elan_i2c - add support for ELAN0621 touchpad
btrfs: Always try all copies when reading extent buffers
Btrfs: fix use-after-free when dumping free space
ARC: change defconfig defaults to ARCv2
arc: [devboards] Add support of NFSv3 ACL
udf: Allow mounting volumes with incorrect identification strings
reset: make optional functions really optional
reset: core: fix reset_control_put
reset: fix optional reset_control_get stubs to return NULL
reset: add exported __reset_control_get, return NULL if optional
reset: make device_reset_optional() really optional
reset: remove remaining WARN_ON() in <linux/reset.h>
mm: cleancache: fix corruption on missed inode invalidation
usb: gadget: dummy: fix nonsensical comparisons
net: qed: use correct strncpy() size
tipc: use destination length for copy string
libceph: drop len argument of *verify_authorizer_reply()
libceph: no need to drop con->mutex for ->get_authorizer()
libceph: store ceph_auth_handshake pointer in ceph_connection
libceph: factor out __prepare_write_connect()
libceph: factor out __ceph_x_decrypt()
libceph: factor out encrypt_authorizer()
libceph: add authorizer challenge
libceph: implement CEPHX_V2 calculation mode
libceph: weaken sizeof check in ceph_x_verify_authorizer_reply()
libceph: check authorizer reply/challenge length before reading
bpf/verifier: Add spi variable to check_stack_write()
bpf/verifier: Pass instruction index to check_mem_access() and check_xadd()
bpf: Prevent memory disambiguation attack
wil6210: missing length check in wmi_set_ie
mm/hugetlb.c: don't call region_abort if region_chg fails
hugetlbfs: fix offset overflow in hugetlbfs mmap
hugetlbfs: check for pgoff value overflow
btrfs: validate type when reading a chunk
btrfs: Verify that every chunk has corresponding block group at mount time
btrfs: Refactor check_leaf function for later expansion
btrfs: Check if item pointer overlaps with the item itself
btrfs: Add sanity check for EXTENT_DATA when reading out leaf
btrfs: Add checker for EXTENT_CSUM
btrfs: Move leaf and node validation checker to tree-checker.c
btrfs: struct-funcs, constify readers
btrfs: tree-checker: Enhance btrfs_check_node output
btrfs: tree-checker: Fix false panic for sanity test
btrfs: tree-checker: Add checker for dir item
btrfs: tree-checker: use %zu format string for size_t
btrfs: tree-check: reduce stack consumption in check_dir_item
btrfs: tree-checker: Verify block_group_item
btrfs: tree-checker: Detect invalid and empty essential trees
btrfs: Check that each block group has corresponding chunk at mount time
btrfs: tree-checker: Check level for leaves and nodes
btrfs: tree-checker: Fix misleading group system information
f2fs: fix a panic caused by NULL flush_cmd_control
f2fs: fix race condition in between free nid allocator/initializer
f2fs: detect wrong layout
f2fs: return error during fill_super
f2fs: check blkaddr more accuratly before issue a bio
f2fs: sanity check on sit entry
f2fs: enhance sanity_check_raw_super() to avoid potential overflow
f2fs: clean up with is_valid_blkaddr()
f2fs: introduce and spread verify_blkaddr
f2fs: fix to do sanity check with secs_per_zone
f2fs: fix to do sanity check with user_block_count
f2fs: Add sanity_check_inode() function
f2fs: fix to do sanity check with node footer and iblocks
f2fs: fix to do sanity check with block address in main area
f2fs: fix missing up_read
f2fs: fix to do sanity check with block address in main area v2
f2fs: free meta pages if sanity check for ckpt is failed
f2fs: fix to do sanity check with cp_pack_start_sum
xfs: don't fail when converting shortform attr to long form during ATTR_REPLACE
hugetlbfs: fix bug in pgoff overflow checking
Linux 4.9.144
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
diff --git a/Makefile b/Makefile
index 400d82b..1af47a9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 9
-SUBLEVEL = 143
+SUBLEVEL = 144
EXTRAVERSION =
NAME = Roaring Lionus
@@ -869,6 +869,9 @@
# disable pointer signed / unsigned warnings in gcc 4.0
KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)
+# disable stringop warnings in gcc 8+
+KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)
+
# disable invalid "can't wrap" optimizations for signed / pointers
KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow)
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index b7b78cb..c7a081c 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -105,7 +105,7 @@
choice
prompt "ARC Instruction Set"
- default ISA_ARCOMPACT
+ default ISA_ARCV2
config ISA_ARCOMPACT
bool "ARCompact ISA"
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index a3b4560..fd79faa 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -8,7 +8,7 @@
UTS_MACHINE := arc
-KBUILD_DEFCONFIG := nsim_700_defconfig
+KBUILD_DEFCONFIG := nsim_hs_defconfig
cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__
cflags-$(CONFIG_ISA_ARCOMPACT) += -mA7
diff --git a/arch/arc/configs/axs101_defconfig b/arch/arc/configs/axs101_defconfig
index dd62319..cdb00af 100644
--- a/arch/arc/configs/axs101_defconfig
+++ b/arch/arc/configs/axs101_defconfig
@@ -15,6 +15,7 @@
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set
+CONFIG_ISA_ARCOMPACT=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
@@ -96,6 +97,7 @@
CONFIG_NTFS_FS=y
CONFIG_TMPFS=y
CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
diff --git a/arch/arc/configs/axs103_defconfig b/arch/arc/configs/axs103_defconfig
index 2e0d7d7..02c766d 100644
--- a/arch/arc/configs/axs103_defconfig
+++ b/arch/arc/configs/axs103_defconfig
@@ -97,6 +97,7 @@
CONFIG_NTFS_FS=y
CONFIG_TMPFS=y
CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
diff --git a/arch/arc/configs/axs103_smp_defconfig b/arch/arc/configs/axs103_smp_defconfig
index ec188fc..8c16093 100644
--- a/arch/arc/configs/axs103_smp_defconfig
+++ b/arch/arc/configs/axs103_smp_defconfig
@@ -98,6 +98,7 @@
CONFIG_NTFS_FS=y
CONFIG_TMPFS=y
CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
diff --git a/arch/arc/configs/nps_defconfig b/arch/arc/configs/nps_defconfig
index ede625c..397742c 100644
--- a/arch/arc/configs/nps_defconfig
+++ b/arch/arc/configs/nps_defconfig
@@ -15,6 +15,7 @@
CONFIG_EMBEDDED=y
CONFIG_PERF_EVENTS=y
# CONFIG_COMPAT_BRK is not set
+CONFIG_ISA_ARCOMPACT=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
@@ -75,6 +76,7 @@
CONFIG_TMPFS=y
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
CONFIG_ROOT_NFS=y
CONFIG_DEBUG_INFO=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
diff --git a/arch/arc/configs/nsim_700_defconfig b/arch/arc/configs/nsim_700_defconfig
index df609fc..cbc6d06 100644
--- a/arch/arc/configs/nsim_700_defconfig
+++ b/arch/arc/configs/nsim_700_defconfig
@@ -16,6 +16,7 @@
CONFIG_PERF_EVENTS=y
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set
+CONFIG_ISA_ARCOMPACT=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
# CONFIG_LBDAF is not set
diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig
index 5680daa6..d34b838 100644
--- a/arch/arc/configs/nsimosci_defconfig
+++ b/arch/arc/configs/nsimosci_defconfig
@@ -16,6 +16,7 @@
CONFIG_PERF_EVENTS=y
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set
+CONFIG_ISA_ARCOMPACT=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
# CONFIG_LBDAF is not set
@@ -70,5 +71,6 @@
CONFIG_TMPFS=y
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
diff --git a/arch/arc/configs/nsimosci_hs_defconfig b/arch/arc/configs/nsimosci_hs_defconfig
index 87decc4..e8c7dd7 100644
--- a/arch/arc/configs/nsimosci_hs_defconfig
+++ b/arch/arc/configs/nsimosci_hs_defconfig
@@ -69,5 +69,6 @@
CONFIG_TMPFS=y
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
diff --git a/arch/arc/configs/nsimosci_hs_smp_defconfig b/arch/arc/configs/nsimosci_hs_smp_defconfig
index 4d14684..100d7bf 100644
--- a/arch/arc/configs/nsimosci_hs_smp_defconfig
+++ b/arch/arc/configs/nsimosci_hs_smp_defconfig
@@ -80,6 +80,7 @@
CONFIG_TMPFS=y
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FTRACE=y
diff --git a/arch/arc/configs/tb10x_defconfig b/arch/arc/configs/tb10x_defconfig
index 4c51183..493966c 100644
--- a/arch/arc/configs/tb10x_defconfig
+++ b/arch/arc/configs/tb10x_defconfig
@@ -19,6 +19,7 @@
# CONFIG_AIO is not set
CONFIG_EMBEDDED=y
# CONFIG_COMPAT_BRK is not set
+CONFIG_ISA_ARCOMPACT=y
CONFIG_SLAB=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
diff --git a/arch/arc/configs/vdk_hs38_defconfig b/arch/arc/configs/vdk_hs38_defconfig
index c0d6a01..b1d38af 100644
--- a/arch/arc/configs/vdk_hs38_defconfig
+++ b/arch/arc/configs/vdk_hs38_defconfig
@@ -88,6 +88,7 @@
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
diff --git a/arch/arc/configs/vdk_hs38_smp_defconfig b/arch/arc/configs/vdk_hs38_smp_defconfig
index 969b206..2d103f7 100644
--- a/arch/arc/configs/vdk_hs38_smp_defconfig
+++ b/arch/arc/configs/vdk_hs38_smp_defconfig
@@ -87,6 +87,7 @@
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index d878825..deee3ac 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -51,7 +51,7 @@
#ifdef CONFIG_64BIT
case 4: case 5: case 6: case 7:
#ifdef CONFIG_MIPS32_O32
- if (test_thread_flag(TIF_32BIT_REGS))
+ if (test_tsk_thread_flag(task, TIF_32BIT_REGS))
return get_user(*arg, (int *)usp + n);
else
#endif
diff --git a/arch/mips/ralink/mt7620.c b/arch/mips/ralink/mt7620.c
index 0696142..9194b04 100644
--- a/arch/mips/ralink/mt7620.c
+++ b/arch/mips/ralink/mt7620.c
@@ -81,7 +81,7 @@
};
static struct rt2880_pmx_func nd_sd_grp[] = {
FUNC("nand", MT7620_GPIO_MODE_NAND, 45, 15),
- FUNC("sd", MT7620_GPIO_MODE_SD, 45, 15)
+ FUNC("sd", MT7620_GPIO_MODE_SD, 47, 13)
};
static struct rt2880_pmx_group mt7620a_pinmux_data[] = {
diff --git a/arch/x86/include/asm/suspend_64.h b/arch/x86/include/asm/suspend_64.h
index 6136a18..2bd96b4 100644
--- a/arch/x86/include/asm/suspend_64.h
+++ b/arch/x86/include/asm/suspend_64.h
@@ -42,8 +42,7 @@
set_debugreg((thread)->debugreg##register, register)
/* routines for saving/restoring kernel state */
-extern int acpi_save_state_mem(void);
-extern char core_restore_code;
-extern char restore_registers;
+extern char core_restore_code[];
+extern char restore_registers[];
#endif /* _ASM_X86_SUSPEND_64_H */
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 4bc35ac..fa1b0e3 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1333,20 +1333,23 @@
static int avic_init_access_page(struct kvm_vcpu *vcpu)
{
struct kvm *kvm = vcpu->kvm;
- int ret;
+ int ret = 0;
+ mutex_lock(&kvm->slots_lock);
if (kvm->arch.apic_access_page_done)
- return 0;
+ goto out;
- ret = x86_set_memory_region(kvm,
- APIC_ACCESS_PAGE_PRIVATE_MEMSLOT,
- APIC_DEFAULT_PHYS_BASE,
- PAGE_SIZE);
+ ret = __x86_set_memory_region(kvm,
+ APIC_ACCESS_PAGE_PRIVATE_MEMSLOT,
+ APIC_DEFAULT_PHYS_BASE,
+ PAGE_SIZE);
if (ret)
- return ret;
+ goto out;
kvm->arch.apic_access_page_done = true;
- return 0;
+out:
+ mutex_unlock(&kvm->slots_lock);
+ return ret;
}
static int avic_init_backing_page(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/power/hibernate_64.c b/arch/x86/power/hibernate_64.c
index 0cb1dd4..fef485b 100644
--- a/arch/x86/power/hibernate_64.c
+++ b/arch/x86/power/hibernate_64.c
@@ -126,7 +126,7 @@
if (!relocated_restore_code)
return -ENOMEM;
- memcpy((void *)relocated_restore_code, &core_restore_code, PAGE_SIZE);
+ memcpy((void *)relocated_restore_code, core_restore_code, PAGE_SIZE);
/* Make the page containing the relocated code executable */
pgd = (pgd_t *)__va(read_cr3()) + pgd_index(relocated_restore_code);
@@ -197,8 +197,8 @@
if (max_size < sizeof(struct restore_data_record))
return -EOVERFLOW;
- rdr->jump_address = (unsigned long)&restore_registers;
- rdr->jump_address_phys = __pa_symbol(&restore_registers);
+ rdr->jump_address = (unsigned long)restore_registers;
+ rdr->jump_address_phys = __pa_symbol(restore_registers);
rdr->cr3 = restore_cr3;
rdr->magic = RESTORE_MAGIC;
return 0;
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index fb99762..fabfeeb 100644
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -556,7 +556,8 @@
drm_mode_config_cleanup(dev);
ast_mm_fini(ast);
- pci_iounmap(dev->pdev, ast->ioregs);
+ if (ast->ioregs != ast->regs + AST_IO_MM_OFFSET)
+ pci_iounmap(dev->pdev, ast->ioregs);
pci_iounmap(dev->pdev, ast->regs);
kfree(ast);
return 0;
diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c
index 6b14351..56b2dd9 100644
--- a/drivers/gpu/drm/drm_auth.c
+++ b/drivers/gpu/drm/drm_auth.c
@@ -133,6 +133,7 @@
lockdep_assert_held_once(&dev->master_mutex);
+ WARN_ON(fpriv->is_master);
old_master = fpriv->master;
fpriv->master = drm_master_create(dev);
if (!fpriv->master) {
@@ -161,6 +162,7 @@
/* drop references and restore old master on failure */
drm_master_put(&fpriv->master);
fpriv->master = old_master;
+ fpriv->is_master = 0;
return ret;
}
diff --git a/drivers/gpu/drm/gma500/mdfld_intel_display.c b/drivers/gpu/drm/gma500/mdfld_intel_display.c
index 92e3f93e..06d61e6 100644
--- a/drivers/gpu/drm/gma500/mdfld_intel_display.c
+++ b/drivers/gpu/drm/gma500/mdfld_intel_display.c
@@ -99,7 +99,7 @@
/* Wait for for the pipe enable to take effect. */
for (count = 0; count < COUNT_MAX; count++) {
temp = REG_READ(map->conf);
- if ((temp & PIPEACONF_PIPE_STATE) == 1)
+ if (temp & PIPEACONF_PIPE_STATE)
break;
}
}
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index e097780..863d030 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -1446,8 +1446,7 @@
}
/* The CEC module handles HDMI hotplug detection */
- cec_np = of_find_compatible_node(np->parent, NULL,
- "mediatek,mt8173-cec");
+ cec_np = of_get_compatible_child(np->parent, "mediatek,mt8173-cec");
if (!cec_np) {
dev_err(dev, "Failed to find CEC node\n");
return -EINVAL;
@@ -1457,8 +1456,10 @@
if (!cec_pdev) {
dev_err(hdmi->dev, "Waiting for CEC device %s\n",
cec_np->full_name);
+ of_node_put(cec_np);
return -EPROBE_DEFER;
}
+ of_node_put(cec_np);
hdmi->cec_dev = &cec_pdev->dev;
/*
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index d7da1dc..b1daf5c 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -710,31 +710,26 @@
MLX5_IB_WIDTH_12X = 1 << 4
};
-static int translate_active_width(struct ib_device *ibdev, u8 active_width,
+static void translate_active_width(struct ib_device *ibdev, u8 active_width,
u8 *ib_width)
{
struct mlx5_ib_dev *dev = to_mdev(ibdev);
- int err = 0;
- if (active_width & MLX5_IB_WIDTH_1X) {
+ if (active_width & MLX5_IB_WIDTH_1X)
*ib_width = IB_WIDTH_1X;
- } else if (active_width & MLX5_IB_WIDTH_2X) {
- mlx5_ib_dbg(dev, "active_width %d is not supported by IB spec\n",
- (int)active_width);
- err = -EINVAL;
- } else if (active_width & MLX5_IB_WIDTH_4X) {
+ else if (active_width & MLX5_IB_WIDTH_4X)
*ib_width = IB_WIDTH_4X;
- } else if (active_width & MLX5_IB_WIDTH_8X) {
+ else if (active_width & MLX5_IB_WIDTH_8X)
*ib_width = IB_WIDTH_8X;
- } else if (active_width & MLX5_IB_WIDTH_12X) {
+ else if (active_width & MLX5_IB_WIDTH_12X)
*ib_width = IB_WIDTH_12X;
- } else {
- mlx5_ib_dbg(dev, "Invalid active_width %d\n",
+ else {
+ mlx5_ib_dbg(dev, "Invalid active_width %d, setting width to default value: 4x\n",
(int)active_width);
- err = -EINVAL;
+ *ib_width = IB_WIDTH_4X;
}
- return err;
+ return;
}
static int mlx5_mtu_to_ib_mtu(int mtu)
@@ -842,10 +837,8 @@
if (err)
goto out;
- err = translate_active_width(ibdev, ib_link_width_oper,
- &props->active_width);
- if (err)
- goto out;
+ translate_active_width(ibdev, ib_link_width_oper, &props->active_width);
+
err = mlx5_query_port_ib_proto_oper(mdev, &props->active_speed, port);
if (err)
goto out;
diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c
index bc6f5bb..d46424d 100644
--- a/drivers/infiniband/ulp/iser/iser_verbs.c
+++ b/drivers/infiniband/ulp/iser/iser_verbs.c
@@ -1110,7 +1110,9 @@
IB_MR_CHECK_SIG_STATUS, &mr_status);
if (ret) {
pr_err("ib_check_mr_status failed, ret %d\n", ret);
- goto err;
+ /* Not a lot we can do, return ambiguous guard error */
+ *sector = 0;
+ return 0x1;
}
if (mr_status.fail_status & IB_MR_CHECK_SIG_STATUS) {
@@ -1138,9 +1140,6 @@
}
return 0;
-err:
- /* Not alot we can do here, return ambiguous guard error */
- return 0x1;
}
void iser_err_comp(struct ib_wc *wc, const char *type)
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 2e52015..f55dcdf 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -483,18 +483,18 @@
};
/*
- * This packet is required for some of the PDP pads to start
+ * This packet is required for most (all?) of the PDP pads to start
* sending input reports. These pads include: (0x0e6f:0x02ab),
- * (0x0e6f:0x02a4).
+ * (0x0e6f:0x02a4), (0x0e6f:0x02a6).
*/
static const u8 xboxone_pdp_init1[] = {
0x0a, 0x20, 0x00, 0x03, 0x00, 0x01, 0x14
};
/*
- * This packet is required for some of the PDP pads to start
+ * This packet is required for most (all?) of the PDP pads to start
* sending input reports. These pads include: (0x0e6f:0x02ab),
- * (0x0e6f:0x02a4).
+ * (0x0e6f:0x02a4), (0x0e6f:0x02a6).
*/
static const u8 xboxone_pdp_init2[] = {
0x06, 0x20, 0x00, 0x02, 0x01, 0x00
@@ -530,12 +530,8 @@
XBOXONE_INIT_PKT(0x0e6f, 0x0165, xboxone_hori_init),
XBOXONE_INIT_PKT(0x0f0d, 0x0067, xboxone_hori_init),
XBOXONE_INIT_PKT(0x0000, 0x0000, xboxone_fw2015_init),
- XBOXONE_INIT_PKT(0x0e6f, 0x02ab, xboxone_pdp_init1),
- XBOXONE_INIT_PKT(0x0e6f, 0x02ab, xboxone_pdp_init2),
- XBOXONE_INIT_PKT(0x0e6f, 0x02a4, xboxone_pdp_init1),
- XBOXONE_INIT_PKT(0x0e6f, 0x02a4, xboxone_pdp_init2),
- XBOXONE_INIT_PKT(0x0e6f, 0x02a6, xboxone_pdp_init1),
- XBOXONE_INIT_PKT(0x0e6f, 0x02a6, xboxone_pdp_init2),
+ XBOXONE_INIT_PKT(0x0e6f, 0x0000, xboxone_pdp_init1),
+ XBOXONE_INIT_PKT(0x0e6f, 0x0000, xboxone_pdp_init2),
XBOXONE_INIT_PKT(0x24c6, 0x541a, xboxone_rumblebegin_init),
XBOXONE_INIT_PKT(0x24c6, 0x542a, xboxone_rumblebegin_init),
XBOXONE_INIT_PKT(0x24c6, 0x543a, xboxone_rumblebegin_init),
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
index 795fa35..c64d874 100644
--- a/drivers/input/keyboard/matrix_keypad.c
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -405,7 +405,7 @@
struct matrix_keypad_platform_data *pdata;
struct device_node *np = dev->of_node;
unsigned int *gpios;
- int i, nrow, ncol;
+ int ret, i, nrow, ncol;
if (!np) {
dev_err(dev, "device lacks DT data\n");
@@ -447,12 +447,19 @@
return ERR_PTR(-ENOMEM);
}
- for (i = 0; i < pdata->num_row_gpios; i++)
- gpios[i] = of_get_named_gpio(np, "row-gpios", i);
+ for (i = 0; i < nrow; i++) {
+ ret = of_get_named_gpio(np, "row-gpios", i);
+ if (ret < 0)
+ return ERR_PTR(ret);
+ gpios[i] = ret;
+ }
- for (i = 0; i < pdata->num_col_gpios; i++)
- gpios[pdata->num_row_gpios + i] =
- of_get_named_gpio(np, "col-gpios", i);
+ for (i = 0; i < ncol; i++) {
+ ret = of_get_named_gpio(np, "col-gpios", i);
+ if (ret < 0)
+ return ERR_PTR(ret);
+ gpios[nrow + i] = ret;
+ }
pdata->row_gpios = gpios;
pdata->col_gpios = &gpios[pdata->num_row_gpios];
@@ -479,10 +486,8 @@
pdata = dev_get_platdata(&pdev->dev);
if (!pdata) {
pdata = matrix_keypad_parse_dt(&pdev->dev);
- if (IS_ERR(pdata)) {
- dev_err(&pdev->dev, "no platform data defined\n");
+ if (IS_ERR(pdata))
return PTR_ERR(pdata);
- }
} else if (!pdata->keymap_data) {
dev_err(&pdev->dev, "no keymap data defined\n");
return -EINVAL;
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index b311958..471984e 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -1253,6 +1253,9 @@
{ "ELAN0618", 0 },
{ "ELAN061C", 0 },
{ "ELAN061D", 0 },
+ { "ELAN061E", 0 },
+ { "ELAN0620", 0 },
+ { "ELAN0621", 0 },
{ "ELAN0622", 0 },
{ "ELAN1000", 0 },
{ }
diff --git a/drivers/net/ethernet/qlogic/qed/qed_debug.c b/drivers/net/ethernet/qlogic/qed/qed_debug.c
index 68f19ca..245eb02 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_debug.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_debug.c
@@ -3039,10 +3039,10 @@
s_big_ram_defs[big_ram_id].num_of_blocks[dev_data->chip_id];
ram_size = total_blocks * BIG_RAM_BLOCK_SIZE_DWORDS;
- strncpy(type_name, s_big_ram_defs[big_ram_id].instance_name,
- strlen(s_big_ram_defs[big_ram_id].instance_name));
- strncpy(mem_name, s_big_ram_defs[big_ram_id].instance_name,
- strlen(s_big_ram_defs[big_ram_id].instance_name));
+ strscpy(type_name, s_big_ram_defs[big_ram_id].instance_name,
+ sizeof(type_name));
+ strscpy(mem_name, s_big_ram_defs[big_ram_id].instance_name,
+ sizeof(mem_name));
/* Dump memory header */
offset += qed_grc_dump_mem_hdr(p_hwfn,
diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index 94a356b..61419d1 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -1302,8 +1302,14 @@
};
int rc;
u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
- struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
+ struct wmi_set_appie_cmd *cmd;
+ if (len < ie_len) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ cmd = kzalloc(len, GFP_KERNEL);
if (!cmd) {
rc = -ENOMEM;
goto out;
diff --git a/drivers/reset/core.c b/drivers/reset/core.c
index b8ae1db..188205a 100644
--- a/drivers/reset/core.c
+++ b/drivers/reset/core.c
@@ -135,11 +135,16 @@
* @rstc: reset controller
*
* Calling this on a shared reset controller is an error.
+ *
+ * If rstc is NULL it is an optional reset and the function will just
+ * return 0.
*/
int reset_control_reset(struct reset_control *rstc)
{
- if (WARN_ON(IS_ERR_OR_NULL(rstc)) ||
- WARN_ON(rstc->shared))
+ if (!rstc)
+ return 0;
+
+ if (WARN_ON(IS_ERR(rstc)))
return -EINVAL;
if (rstc->rcdev->ops->reset)
@@ -159,10 +164,16 @@
*
* For shared reset controls a driver cannot expect the hw's registers and
* internal state to be reset, but must be prepared for this to happen.
+ *
+ * If rstc is NULL it is an optional reset and the function will just
+ * return 0.
*/
int reset_control_assert(struct reset_control *rstc)
{
- if (WARN_ON(IS_ERR_OR_NULL(rstc)))
+ if (!rstc)
+ return 0;
+
+ if (WARN_ON(IS_ERR(rstc)))
return -EINVAL;
if (!rstc->rcdev->ops->assert)
@@ -185,10 +196,16 @@
* @rstc: reset controller
*
* After calling this function, the reset is guaranteed to be deasserted.
+ *
+ * If rstc is NULL it is an optional reset and the function will just
+ * return 0.
*/
int reset_control_deassert(struct reset_control *rstc)
{
- if (WARN_ON(IS_ERR_OR_NULL(rstc)))
+ if (!rstc)
+ return 0;
+
+ if (WARN_ON(IS_ERR(rstc)))
return -EINVAL;
if (!rstc->rcdev->ops->deassert)
@@ -206,12 +223,15 @@
/**
* reset_control_status - returns a negative errno if not supported, a
* positive value if the reset line is asserted, or zero if the reset
- * line is not asserted.
+ * line is not asserted or if the desc is NULL (optional reset).
* @rstc: reset controller
*/
int reset_control_status(struct reset_control *rstc)
{
- if (WARN_ON(IS_ERR_OR_NULL(rstc)))
+ if (!rstc)
+ return 0;
+
+ if (WARN_ON(IS_ERR(rstc)))
return -EINVAL;
if (rstc->rcdev->ops->status)
@@ -221,7 +241,7 @@
}
EXPORT_SYMBOL_GPL(reset_control_status);
-static struct reset_control *__reset_control_get(
+static struct reset_control *__reset_control_get_internal(
struct reset_controller_dev *rcdev,
unsigned int index, int shared)
{
@@ -254,7 +274,7 @@
return rstc;
}
-static void __reset_control_put(struct reset_control *rstc)
+static void __reset_control_put_internal(struct reset_control *rstc)
{
lockdep_assert_held(&reset_list_mutex);
@@ -268,7 +288,8 @@
}
struct reset_control *__of_reset_control_get(struct device_node *node,
- const char *id, int index, int shared)
+ const char *id, int index, bool shared,
+ bool optional)
{
struct reset_control *rstc;
struct reset_controller_dev *r, *rcdev;
@@ -282,14 +303,18 @@
if (id) {
index = of_property_match_string(node,
"reset-names", id);
+ if (index == -EILSEQ)
+ return ERR_PTR(index);
if (index < 0)
- return ERR_PTR(-ENOENT);
+ return optional ? NULL : ERR_PTR(-ENOENT);
}
ret = of_parse_phandle_with_args(node, "resets", "#reset-cells",
index, &args);
- if (ret)
+ if (ret == -EINVAL)
return ERR_PTR(ret);
+ if (ret)
+ return optional ? NULL : ERR_PTR(ret);
mutex_lock(&reset_list_mutex);
rcdev = NULL;
@@ -318,7 +343,7 @@
}
/* reset_list_mutex also protects the rcdev's reset_control list */
- rstc = __reset_control_get(rcdev, rstc_id, shared);
+ rstc = __reset_control_get_internal(rcdev, rstc_id, shared);
mutex_unlock(&reset_list_mutex);
@@ -326,6 +351,17 @@
}
EXPORT_SYMBOL_GPL(__of_reset_control_get);
+struct reset_control *__reset_control_get(struct device *dev, const char *id,
+ int index, bool shared, bool optional)
+{
+ if (dev->of_node)
+ return __of_reset_control_get(dev->of_node, id, index, shared,
+ optional);
+
+ return optional ? NULL : ERR_PTR(-EINVAL);
+}
+EXPORT_SYMBOL_GPL(__reset_control_get);
+
/**
* reset_control_put - free the reset controller
* @rstc: reset controller
@@ -333,11 +369,11 @@
void reset_control_put(struct reset_control *rstc)
{
- if (IS_ERR(rstc))
+ if (IS_ERR_OR_NULL(rstc))
return;
mutex_lock(&reset_list_mutex);
- __reset_control_put(rstc);
+ __reset_control_put_internal(rstc);
mutex_unlock(&reset_list_mutex);
}
EXPORT_SYMBOL_GPL(reset_control_put);
@@ -348,7 +384,8 @@
}
struct reset_control *__devm_reset_control_get(struct device *dev,
- const char *id, int index, int shared)
+ const char *id, int index, bool shared,
+ bool optional)
{
struct reset_control **ptr, *rstc;
@@ -357,8 +394,7 @@
if (!ptr)
return ERR_PTR(-ENOMEM);
- rstc = __of_reset_control_get(dev ? dev->of_node : NULL,
- id, index, shared);
+ rstc = __reset_control_get(dev, id, index, shared, optional);
if (!IS_ERR(rstc)) {
*ptr = rstc;
devres_add(dev, ptr);
@@ -374,17 +410,18 @@
* device_reset - find reset controller associated with the device
* and perform reset
* @dev: device to be reset by the controller
+ * @optional: whether it is optional to reset the device
*
- * Convenience wrapper for reset_control_get() and reset_control_reset().
+ * Convenience wrapper for __reset_control_get() and reset_control_reset().
* This is useful for the common case of devices with single, dedicated reset
* lines.
*/
-int device_reset(struct device *dev)
+int __device_reset(struct device *dev, bool optional)
{
struct reset_control *rstc;
int ret;
- rstc = reset_control_get(dev, NULL);
+ rstc = __reset_control_get(dev, NULL, 0, 0, optional);
if (IS_ERR(rstc))
return PTR_ERR(rstc);
@@ -394,4 +431,4 @@
return ret;
}
-EXPORT_SYMBOL_GPL(device_reset);
+EXPORT_SYMBOL_GPL(__device_reset);
diff --git a/drivers/scsi/bfa/bfa_fcbuild.c b/drivers/scsi/bfa/bfa_fcbuild.c
index b8dadc9..d3b00a4 100644
--- a/drivers/scsi/bfa/bfa_fcbuild.c
+++ b/drivers/scsi/bfa/bfa_fcbuild.c
@@ -1250,8 +1250,8 @@
memset(rspnid, 0, sizeof(struct fcgs_rspnid_req_s));
rspnid->dap = s_id;
- rspnid->spn_len = (u8) strlen((char *)name);
- strncpy((char *)rspnid->spn, (char *)name, rspnid->spn_len);
+ strlcpy(rspnid->spn, name, sizeof(rspnid->spn));
+ rspnid->spn_len = (u8) strlen(rspnid->spn);
return sizeof(struct fcgs_rspnid_req_s) + sizeof(struct ct_hdr_s);
}
@@ -1271,8 +1271,8 @@
memset(rsnn_nn, 0, sizeof(struct fcgs_rsnn_nn_req_s));
rsnn_nn->node_name = node_name;
- rsnn_nn->snn_len = (u8) strlen((char *)name);
- strncpy((char *)rsnn_nn->snn, (char *)name, rsnn_nn->snn_len);
+ strlcpy(rsnn_nn->snn, name, sizeof(rsnn_nn->snn));
+ rsnn_nn->snn_len = (u8) strlen(rsnn_nn->snn);
return sizeof(struct fcgs_rsnn_nn_req_s) + sizeof(struct ct_hdr_s);
}
diff --git a/drivers/scsi/bfa/bfa_fcs.c b/drivers/scsi/bfa/bfa_fcs.c
index 1e7e139..f602de0 100644
--- a/drivers/scsi/bfa/bfa_fcs.c
+++ b/drivers/scsi/bfa/bfa_fcs.c
@@ -832,23 +832,23 @@
bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model);
/* Model name/number */
- strncpy((char *)&port_cfg->sym_name, model,
- BFA_FCS_PORT_SYMBNAME_MODEL_SZ);
- strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
- sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+ strlcpy(port_cfg->sym_name.symname, model,
+ BFA_SYMNAME_MAXLEN);
+ strlcat(port_cfg->sym_name.symname, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
+ BFA_SYMNAME_MAXLEN);
/* Driver Version */
- strncat((char *)&port_cfg->sym_name, (char *)driver_info->version,
- BFA_FCS_PORT_SYMBNAME_VERSION_SZ);
- strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
- sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+ strlcat(port_cfg->sym_name.symname, driver_info->version,
+ BFA_SYMNAME_MAXLEN);
+ strlcat(port_cfg->sym_name.symname, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
+ BFA_SYMNAME_MAXLEN);
/* Host machine name */
- strncat((char *)&port_cfg->sym_name,
- (char *)driver_info->host_machine_name,
- BFA_FCS_PORT_SYMBNAME_MACHINENAME_SZ);
- strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
- sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+ strlcat(port_cfg->sym_name.symname,
+ driver_info->host_machine_name,
+ BFA_SYMNAME_MAXLEN);
+ strlcat(port_cfg->sym_name.symname, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
+ BFA_SYMNAME_MAXLEN);
/*
* Host OS Info :
@@ -856,24 +856,24 @@
* OS name string and instead copy the entire OS info string (64 bytes).
*/
if (driver_info->host_os_patch[0] == '\0') {
- strncat((char *)&port_cfg->sym_name,
- (char *)driver_info->host_os_name,
- BFA_FCS_OS_STR_LEN);
- strncat((char *)&port_cfg->sym_name,
+ strlcat(port_cfg->sym_name.symname,
+ driver_info->host_os_name,
+ BFA_SYMNAME_MAXLEN);
+ strlcat(port_cfg->sym_name.symname,
BFA_FCS_PORT_SYMBNAME_SEPARATOR,
- sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+ BFA_SYMNAME_MAXLEN);
} else {
- strncat((char *)&port_cfg->sym_name,
- (char *)driver_info->host_os_name,
- BFA_FCS_PORT_SYMBNAME_OSINFO_SZ);
- strncat((char *)&port_cfg->sym_name,
+ strlcat(port_cfg->sym_name.symname,
+ driver_info->host_os_name,
+ BFA_SYMNAME_MAXLEN);
+ strlcat(port_cfg->sym_name.symname,
BFA_FCS_PORT_SYMBNAME_SEPARATOR,
- sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+ BFA_SYMNAME_MAXLEN);
/* Append host OS Patch Info */
- strncat((char *)&port_cfg->sym_name,
- (char *)driver_info->host_os_patch,
- BFA_FCS_PORT_SYMBNAME_OSPATCH_SZ);
+ strlcat(port_cfg->sym_name.symname,
+ driver_info->host_os_patch,
+ BFA_SYMNAME_MAXLEN);
}
/* null terminate */
@@ -893,26 +893,26 @@
bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model);
/* Model name/number */
- strncpy((char *)&port_cfg->node_sym_name, model,
- BFA_FCS_PORT_SYMBNAME_MODEL_SZ);
- strncat((char *)&port_cfg->node_sym_name,
+ strlcpy(port_cfg->node_sym_name.symname, model,
+ BFA_SYMNAME_MAXLEN);
+ strlcat(port_cfg->node_sym_name.symname,
BFA_FCS_PORT_SYMBNAME_SEPARATOR,
- sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+ BFA_SYMNAME_MAXLEN);
/* Driver Version */
- strncat((char *)&port_cfg->node_sym_name, (char *)driver_info->version,
- BFA_FCS_PORT_SYMBNAME_VERSION_SZ);
- strncat((char *)&port_cfg->node_sym_name,
+ strlcat(port_cfg->node_sym_name.symname, (char *)driver_info->version,
+ BFA_SYMNAME_MAXLEN);
+ strlcat(port_cfg->node_sym_name.symname,
BFA_FCS_PORT_SYMBNAME_SEPARATOR,
- sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+ BFA_SYMNAME_MAXLEN);
/* Host machine name */
- strncat((char *)&port_cfg->node_sym_name,
- (char *)driver_info->host_machine_name,
- BFA_FCS_PORT_SYMBNAME_MACHINENAME_SZ);
- strncat((char *)&port_cfg->node_sym_name,
+ strlcat(port_cfg->node_sym_name.symname,
+ driver_info->host_machine_name,
+ BFA_SYMNAME_MAXLEN);
+ strlcat(port_cfg->node_sym_name.symname,
BFA_FCS_PORT_SYMBNAME_SEPARATOR,
- sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+ BFA_SYMNAME_MAXLEN);
/* null terminate */
port_cfg->node_sym_name.symname[BFA_SYMNAME_MAXLEN - 1] = 0;
diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c
index 4ddda72..eb87949 100644
--- a/drivers/scsi/bfa/bfa_fcs_lport.c
+++ b/drivers/scsi/bfa/bfa_fcs_lport.c
@@ -2631,10 +2631,10 @@
bfa_ioc_get_adapter_fw_ver(&port->fcs->bfa->ioc,
hba_attr->fw_version);
- strncpy(hba_attr->driver_version, (char *)driver_info->version,
+ strlcpy(hba_attr->driver_version, (char *)driver_info->version,
sizeof(hba_attr->driver_version));
- strncpy(hba_attr->os_name, driver_info->host_os_name,
+ strlcpy(hba_attr->os_name, driver_info->host_os_name,
sizeof(hba_attr->os_name));
/*
@@ -2642,23 +2642,23 @@
* to the os name along with a separator
*/
if (driver_info->host_os_patch[0] != '\0') {
- strncat(hba_attr->os_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
- sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
- strncat(hba_attr->os_name, driver_info->host_os_patch,
- sizeof(driver_info->host_os_patch));
+ strlcat(hba_attr->os_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
+ sizeof(hba_attr->os_name));
+ strlcat(hba_attr->os_name, driver_info->host_os_patch,
+ sizeof(hba_attr->os_name));
}
/* Retrieve the max frame size from the port attr */
bfa_fcs_fdmi_get_portattr(fdmi, &fcs_port_attr);
hba_attr->max_ct_pyld = fcs_port_attr.max_frm_size;
- strncpy(hba_attr->node_sym_name.symname,
+ strlcpy(hba_attr->node_sym_name.symname,
port->port_cfg.node_sym_name.symname, BFA_SYMNAME_MAXLEN);
strcpy(hba_attr->vendor_info, "QLogic");
hba_attr->num_ports =
cpu_to_be32(bfa_ioc_get_nports(&port->fcs->bfa->ioc));
hba_attr->fabric_name = port->fabric->lps->pr_nwwn;
- strncpy(hba_attr->bios_ver, hba_attr->option_rom_ver, BFA_VERSION_LEN);
+ strlcpy(hba_attr->bios_ver, hba_attr->option_rom_ver, BFA_VERSION_LEN);
}
@@ -2725,20 +2725,20 @@
/*
* OS device Name
*/
- strncpy(port_attr->os_device_name, (char *)driver_info->os_device_name,
+ strlcpy(port_attr->os_device_name, driver_info->os_device_name,
sizeof(port_attr->os_device_name));
/*
* Host name
*/
- strncpy(port_attr->host_name, (char *)driver_info->host_machine_name,
+ strlcpy(port_attr->host_name, driver_info->host_machine_name,
sizeof(port_attr->host_name));
port_attr->node_name = bfa_fcs_lport_get_nwwn(port);
port_attr->port_name = bfa_fcs_lport_get_pwwn(port);
- strncpy(port_attr->port_sym_name.symname,
- (char *)&bfa_fcs_lport_get_psym_name(port), BFA_SYMNAME_MAXLEN);
+ strlcpy(port_attr->port_sym_name.symname,
+ bfa_fcs_lport_get_psym_name(port).symname, BFA_SYMNAME_MAXLEN);
bfa_fcs_lport_get_attr(port, &lport_attr);
port_attr->port_type = cpu_to_be32(lport_attr.port_type);
port_attr->scos = pport_attr.cos_supported;
@@ -3218,7 +3218,7 @@
rsp_str[gmal_entry->len-1] = 0;
/* copy IP Address to fabric */
- strncpy(bfa_fcs_lport_get_fabric_ipaddr(port),
+ strlcpy(bfa_fcs_lport_get_fabric_ipaddr(port),
gmal_entry->ip_addr,
BFA_FCS_FABRIC_IPADDR_SZ);
break;
@@ -4656,21 +4656,13 @@
* to that of the base port.
*/
- strncpy((char *)psymbl,
- (char *) &
- (bfa_fcs_lport_get_psym_name
+ strlcpy(symbl,
+ (char *)&(bfa_fcs_lport_get_psym_name
(bfa_fcs_get_base_port(port->fcs))),
- strlen((char *) &
- bfa_fcs_lport_get_psym_name(bfa_fcs_get_base_port
- (port->fcs))));
+ sizeof(symbl));
- /* Ensure we have a null terminating string. */
- ((char *)psymbl)[strlen((char *) &
- bfa_fcs_lport_get_psym_name(bfa_fcs_get_base_port
- (port->fcs)))] = 0;
- strncat((char *)psymbl,
- (char *) &(bfa_fcs_lport_get_psym_name(port)),
- strlen((char *) &bfa_fcs_lport_get_psym_name(port)));
+ strlcat(symbl, (char *)&(bfa_fcs_lport_get_psym_name(port)),
+ sizeof(symbl));
} else {
psymbl = (u8 *) &(bfa_fcs_lport_get_psym_name(port));
}
@@ -5162,7 +5154,6 @@
struct fchs_s fchs;
struct bfa_fcxp_s *fcxp;
u8 symbl[256];
- u8 *psymbl = &symbl[0];
int len;
/* Avoid sending RSPN in the following states. */
@@ -5192,22 +5183,17 @@
* For Vports, we append the vport's port symbolic name
* to that of the base port.
*/
- strncpy((char *)psymbl, (char *)&(bfa_fcs_lport_get_psym_name
+ strlcpy(symbl, (char *)&(bfa_fcs_lport_get_psym_name
(bfa_fcs_get_base_port(port->fcs))),
- strlen((char *)&bfa_fcs_lport_get_psym_name(
- bfa_fcs_get_base_port(port->fcs))));
+ sizeof(symbl));
- /* Ensure we have a null terminating string. */
- ((char *)psymbl)[strlen((char *)&bfa_fcs_lport_get_psym_name(
- bfa_fcs_get_base_port(port->fcs)))] = 0;
-
- strncat((char *)psymbl,
+ strlcat(symbl,
(char *)&(bfa_fcs_lport_get_psym_name(port)),
- strlen((char *)&bfa_fcs_lport_get_psym_name(port)));
+ sizeof(symbl));
}
len = fc_rspnid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
- bfa_fcs_lport_get_fcid(port), 0, psymbl);
+ bfa_fcs_lport_get_fcid(port), 0, symbl);
bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
diff --git a/drivers/scsi/bfa/bfa_ioc.c b/drivers/scsi/bfa/bfa_ioc.c
index a1ada4a..1675041 100644
--- a/drivers/scsi/bfa/bfa_ioc.c
+++ b/drivers/scsi/bfa/bfa_ioc.c
@@ -2803,7 +2803,7 @@
bfa_ioc_get_adapter_manufacturer(struct bfa_ioc_s *ioc, char *manufacturer)
{
memset((void *)manufacturer, 0, BFA_ADAPTER_MFG_NAME_LEN);
- strncpy(manufacturer, BFA_MFG_NAME, BFA_ADAPTER_MFG_NAME_LEN);
+ strlcpy(manufacturer, BFA_MFG_NAME, BFA_ADAPTER_MFG_NAME_LEN);
}
void
diff --git a/drivers/scsi/bfa/bfa_svc.c b/drivers/scsi/bfa/bfa_svc.c
index 12de292..225883d 100644
--- a/drivers/scsi/bfa/bfa_svc.c
+++ b/drivers/scsi/bfa/bfa_svc.c
@@ -366,8 +366,8 @@
lp.eid = event;
lp.log_type = BFA_PL_LOG_TYPE_STRING;
lp.misc = misc;
- strncpy(lp.log_entry.string_log, log_str,
- BFA_PL_STRING_LOG_SZ - 1);
+ strlcpy(lp.log_entry.string_log, log_str,
+ BFA_PL_STRING_LOG_SZ);
lp.log_entry.string_log[BFA_PL_STRING_LOG_SZ - 1] = '\0';
bfa_plog_add(plog, &lp);
}
diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index e70410b..389f8ef 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -983,20 +983,20 @@
/* Fill the driver_info info to fcs*/
memset(&driver_info, 0, sizeof(driver_info));
- strncpy(driver_info.version, BFAD_DRIVER_VERSION,
- sizeof(driver_info.version) - 1);
+ strlcpy(driver_info.version, BFAD_DRIVER_VERSION,
+ sizeof(driver_info.version));
if (host_name)
- strncpy(driver_info.host_machine_name, host_name,
- sizeof(driver_info.host_machine_name) - 1);
+ strlcpy(driver_info.host_machine_name, host_name,
+ sizeof(driver_info.host_machine_name));
if (os_name)
- strncpy(driver_info.host_os_name, os_name,
- sizeof(driver_info.host_os_name) - 1);
+ strlcpy(driver_info.host_os_name, os_name,
+ sizeof(driver_info.host_os_name));
if (os_patch)
- strncpy(driver_info.host_os_patch, os_patch,
- sizeof(driver_info.host_os_patch) - 1);
+ strlcpy(driver_info.host_os_patch, os_patch,
+ sizeof(driver_info.host_os_patch));
- strncpy(driver_info.os_device_name, bfad->pci_name,
- sizeof(driver_info.os_device_name) - 1);
+ strlcpy(driver_info.os_device_name, bfad->pci_name,
+ sizeof(driver_info.os_device_name));
/* FCS driver info init */
spin_lock_irqsave(&bfad->bfad_lock, flags);
diff --git a/drivers/scsi/bfa/bfad_attr.c b/drivers/scsi/bfa/bfad_attr.c
index 13db3b7..d0a504a 100644
--- a/drivers/scsi/bfa/bfad_attr.c
+++ b/drivers/scsi/bfa/bfad_attr.c
@@ -843,7 +843,7 @@
char symname[BFA_SYMNAME_MAXLEN];
bfa_fcs_lport_get_attr(&bfad->bfa_fcs.fabric.bport, &port_attr);
- strncpy(symname, port_attr.port_cfg.sym_name.symname,
+ strlcpy(symname, port_attr.port_cfg.sym_name.symname,
BFA_SYMNAME_MAXLEN);
return snprintf(buf, PAGE_SIZE, "%s\n", symname);
}
diff --git a/drivers/scsi/bfa/bfad_bsg.c b/drivers/scsi/bfa/bfad_bsg.c
index d1ad020..a3bd236 100644
--- a/drivers/scsi/bfa/bfad_bsg.c
+++ b/drivers/scsi/bfa/bfad_bsg.c
@@ -127,7 +127,7 @@
/* fill in driver attr info */
strcpy(iocmd->ioc_attr.driver_attr.driver, BFAD_DRIVER_NAME);
- strncpy(iocmd->ioc_attr.driver_attr.driver_ver,
+ strlcpy(iocmd->ioc_attr.driver_attr.driver_ver,
BFAD_DRIVER_VERSION, BFA_VERSION_LEN);
strcpy(iocmd->ioc_attr.driver_attr.fw_ver,
iocmd->ioc_attr.adapter_attr.fw_ver);
@@ -315,9 +315,9 @@
iocmd->attr.port_type = port_attr.port_type;
iocmd->attr.loopback = port_attr.loopback;
iocmd->attr.authfail = port_attr.authfail;
- strncpy(iocmd->attr.port_symname.symname,
+ strlcpy(iocmd->attr.port_symname.symname,
port_attr.port_cfg.sym_name.symname,
- sizeof(port_attr.port_cfg.sym_name.symname));
+ sizeof(iocmd->attr.port_symname.symname));
iocmd->status = BFA_STATUS_OK;
return 0;
diff --git a/drivers/scsi/csiostor/csio_lnode.c b/drivers/scsi/csiostor/csio_lnode.c
index c00b2ff..be5ee2d 100644
--- a/drivers/scsi/csiostor/csio_lnode.c
+++ b/drivers/scsi/csiostor/csio_lnode.c
@@ -238,14 +238,23 @@
}
static inline void
-csio_append_attrib(uint8_t **ptr, uint16_t type, uint8_t *val, uint16_t len)
+csio_append_attrib(uint8_t **ptr, uint16_t type, void *val, size_t val_len)
{
+ uint16_t len;
struct fc_fdmi_attr_entry *ae = (struct fc_fdmi_attr_entry *)*ptr;
+
+ if (WARN_ON(val_len > U16_MAX))
+ return;
+
+ len = val_len;
+
ae->type = htons(type);
len += 4; /* includes attribute type and length */
len = (len + 3) & ~3; /* should be multiple of 4 bytes */
ae->len = htons(len);
- memcpy(ae->value, val, len);
+ memcpy(ae->value, val, val_len);
+ if (len > val_len)
+ memset(ae->value + val_len, 0, len - val_len);
*ptr += len;
}
@@ -335,7 +344,7 @@
numattrs++;
val = htonl(FC_PORTSPEED_1GBIT | FC_PORTSPEED_10GBIT);
csio_append_attrib(&pld, FC_FDMI_PORT_ATTR_SUPPORTEDSPEED,
- (uint8_t *)&val,
+ &val,
FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN);
numattrs++;
@@ -346,23 +355,22 @@
else
val = htonl(CSIO_HBA_PORTSPEED_UNKNOWN);
csio_append_attrib(&pld, FC_FDMI_PORT_ATTR_CURRENTPORTSPEED,
- (uint8_t *)&val,
- FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN);
+ &val, FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN);
numattrs++;
mfs = ln->ln_sparm.csp.sp_bb_data;
csio_append_attrib(&pld, FC_FDMI_PORT_ATTR_MAXFRAMESIZE,
- (uint8_t *)&mfs, FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN);
+ &mfs, sizeof(mfs));
numattrs++;
strcpy(buf, "csiostor");
csio_append_attrib(&pld, FC_FDMI_PORT_ATTR_OSDEVICENAME, buf,
- (uint16_t)strlen(buf));
+ strlen(buf));
numattrs++;
if (!csio_hostname(buf, sizeof(buf))) {
csio_append_attrib(&pld, FC_FDMI_PORT_ATTR_HOSTNAME,
- buf, (uint16_t)strlen(buf));
+ buf, strlen(buf));
numattrs++;
}
attrib_blk->numattrs = htonl(numattrs);
@@ -444,33 +452,32 @@
strcpy(buf, "Chelsio Communications");
csio_append_attrib(&pld, FC_FDMI_HBA_ATTR_MANUFACTURER, buf,
- (uint16_t)strlen(buf));
+ strlen(buf));
numattrs++;
csio_append_attrib(&pld, FC_FDMI_HBA_ATTR_SERIALNUMBER,
- hw->vpd.sn, (uint16_t)sizeof(hw->vpd.sn));
+ hw->vpd.sn, sizeof(hw->vpd.sn));
numattrs++;
csio_append_attrib(&pld, FC_FDMI_HBA_ATTR_MODEL, hw->vpd.id,
- (uint16_t)sizeof(hw->vpd.id));
+ sizeof(hw->vpd.id));
numattrs++;
csio_append_attrib(&pld, FC_FDMI_HBA_ATTR_MODELDESCRIPTION,
- hw->model_desc, (uint16_t)strlen(hw->model_desc));
+ hw->model_desc, strlen(hw->model_desc));
numattrs++;
csio_append_attrib(&pld, FC_FDMI_HBA_ATTR_HARDWAREVERSION,
- hw->hw_ver, (uint16_t)sizeof(hw->hw_ver));
+ hw->hw_ver, sizeof(hw->hw_ver));
numattrs++;
csio_append_attrib(&pld, FC_FDMI_HBA_ATTR_FIRMWAREVERSION,
- hw->fwrev_str, (uint16_t)strlen(hw->fwrev_str));
+ hw->fwrev_str, strlen(hw->fwrev_str));
numattrs++;
if (!csio_osname(buf, sizeof(buf))) {
csio_append_attrib(&pld, FC_FDMI_HBA_ATTR_OSNAMEVERSION,
- buf, (uint16_t)strlen(buf));
+ buf, strlen(buf));
numattrs++;
}
csio_append_attrib(&pld, FC_FDMI_HBA_ATTR_MAXCTPAYLOAD,
- (uint8_t *)&maxpayload,
- FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN);
+ &maxpayload, FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN);
len = (uint32_t)(pld - (uint8_t *)cmd);
numattrs++;
attrib_blk->numattrs = htonl(numattrs);
@@ -1794,6 +1801,8 @@
struct csio_mgmtm *mgmtm = csio_hw_to_mgmtm(hw);
int rv;
+ BUG_ON(pld_len > pld->len);
+
io_req->io_cbfn = io_cbfn; /* Upper layer callback handler */
io_req->fw_handle = (uintptr_t) (io_req);
io_req->eq_idx = mgmtm->eq_idx;
diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
index 43d4b30..282ea00 100644
--- a/drivers/scsi/scsi_devinfo.c
+++ b/drivers/scsi/scsi_devinfo.c
@@ -33,7 +33,6 @@
};
-static const char spaces[] = " "; /* 16 of them */
static unsigned scsi_default_dev_flags;
static LIST_HEAD(scsi_dev_info_list);
static char scsi_dev_flags[256];
@@ -298,20 +297,13 @@
size_t from_length;
from_length = strlen(from);
- strncpy(to, from, min(to_length, from_length));
- if (from_length < to_length) {
- if (compatible) {
- /*
- * NUL terminate the string if it is short.
- */
- to[from_length] = '\0';
- } else {
- /*
- * space pad the string if it is short.
- */
- strncpy(&to[from_length], spaces,
- to_length - from_length);
- }
+ /* this zero-pads the destination */
+ strncpy(to, from, to_length);
+ if (from_length < to_length && !compatible) {
+ /*
+ * space pad the string if it is short.
+ */
+ memset(&to[from_length], ' ', to_length - from_length);
}
if (from_length > to_length)
printk(KERN_WARNING "%s: %s string '%s' is too long\n",
diff --git a/drivers/staging/rts5208/sd.c b/drivers/staging/rts5208/sd.c
index 9e63bdf..4e233f3 100644
--- a/drivers/staging/rts5208/sd.c
+++ b/drivers/staging/rts5208/sd.c
@@ -4110,12 +4110,6 @@
rtsx_trace(chip);
return STATUS_FAIL;
}
-
- } else if (rsp_type == SD_RSP_TYPE_R0) {
- if ((ptr[3] & 0x1E) != 0x03) {
- rtsx_trace(chip);
- return STATUS_FAIL;
- }
}
}
}
diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
index dd865a8..dde54d9 100644
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@@ -131,24 +131,6 @@
#define kgdboc_restore_input()
#endif /* ! CONFIG_KDB_KEYBOARD */
-static int kgdboc_option_setup(char *opt)
-{
- if (!opt) {
- pr_err("kgdboc: config string not provided\n");
- return -EINVAL;
- }
-
- if (strlen(opt) >= MAX_CONFIG_LEN) {
- printk(KERN_ERR "kgdboc: config string too long\n");
- return -ENOSPC;
- }
- strcpy(config, opt);
-
- return 0;
-}
-
-__setup("kgdboc=", kgdboc_option_setup);
-
static void cleanup_kgdboc(void)
{
if (kgdb_unregister_nmi_console())
@@ -162,15 +144,13 @@
{
struct tty_driver *p;
int tty_line = 0;
- int err;
+ int err = -ENODEV;
char *cptr = config;
struct console *cons;
- err = kgdboc_option_setup(config);
- if (err || !strlen(config) || isspace(config[0]))
+ if (!strlen(config) || isspace(config[0]))
goto noconfig;
- err = -ENODEV;
kgdboc_io_ops.is_console = 0;
kgdb_tty_driver = NULL;
@@ -319,6 +299,25 @@
};
#ifdef CONFIG_KGDB_SERIAL_CONSOLE
+static int kgdboc_option_setup(char *opt)
+{
+ if (!opt) {
+ pr_err("config string not provided\n");
+ return -EINVAL;
+ }
+
+ if (strlen(opt) >= MAX_CONFIG_LEN) {
+ pr_err("config string too long\n");
+ return -ENOSPC;
+ }
+ strcpy(config, opt);
+
+ return 0;
+}
+
+__setup("kgdboc=", kgdboc_option_setup);
+
+
/* This is only available if kgdboc is a built in for early debugging */
static int __init kgdboc_early_init(char *opt)
{
diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index ff4d6ca..ab89fa3 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -379,11 +379,10 @@
USB_PORT_STAT_CONNECTION) == 0)
dum_hcd->port_status |=
(USB_PORT_STAT_C_CONNECTION << 16);
- if ((dum_hcd->port_status &
- USB_PORT_STAT_ENABLE) == 1 &&
- (dum_hcd->port_status &
- USB_SS_PORT_LS_U0) == 1 &&
- dum_hcd->rh_state != DUMMY_RH_SUSPENDED)
+ if ((dum_hcd->port_status & USB_PORT_STAT_ENABLE) &&
+ (dum_hcd->port_status &
+ USB_PORT_STAT_LINK_STATE) == USB_SS_PORT_LS_U0 &&
+ dum_hcd->rh_state != DUMMY_RH_SUSPENDED)
dum_hcd->active = 1;
}
} else {
diff --git a/fs/btrfs/Makefile b/fs/btrfs/Makefile
index 128ce17..076ccfb 100644
--- a/fs/btrfs/Makefile
+++ b/fs/btrfs/Makefile
@@ -9,7 +9,7 @@
export.o tree-log.o free-space-cache.o zlib.o lzo.o \
compression.o delayed-ref.o relocation.o delayed-inode.o scrub.o \
reada.o backref.o ulist.o qgroup.o send.o dev-replace.o raid56.o \
- uuid-tree.o props.o hash.o free-space-tree.o
+ uuid-tree.o props.o hash.o free-space-tree.o tree-checker.o
btrfs-$(CONFIG_BTRFS_FS_POSIX_ACL) += acl.o
btrfs-$(CONFIG_BTRFS_FS_CHECK_INTEGRITY) += check-integrity.o
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 86245b88..a423c36 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1415,7 +1415,7 @@
#define BTRFS_INODE_ROOT_ITEM_INIT (1 << 31)
struct btrfs_map_token {
- struct extent_buffer *eb;
+ const struct extent_buffer *eb;
char *kaddr;
unsigned long offset;
};
@@ -1449,18 +1449,19 @@
sizeof(((type *)0)->member)))
#define DECLARE_BTRFS_SETGET_BITS(bits) \
-u##bits btrfs_get_token_##bits(struct extent_buffer *eb, void *ptr, \
- unsigned long off, \
- struct btrfs_map_token *token); \
-void btrfs_set_token_##bits(struct extent_buffer *eb, void *ptr, \
+u##bits btrfs_get_token_##bits(const struct extent_buffer *eb, \
+ const void *ptr, unsigned long off, \
+ struct btrfs_map_token *token); \
+void btrfs_set_token_##bits(struct extent_buffer *eb, const void *ptr, \
unsigned long off, u##bits val, \
struct btrfs_map_token *token); \
-static inline u##bits btrfs_get_##bits(struct extent_buffer *eb, void *ptr, \
+static inline u##bits btrfs_get_##bits(const struct extent_buffer *eb, \
+ const void *ptr, \
unsigned long off) \
{ \
return btrfs_get_token_##bits(eb, ptr, off, NULL); \
} \
-static inline void btrfs_set_##bits(struct extent_buffer *eb, void *ptr, \
+static inline void btrfs_set_##bits(struct extent_buffer *eb, void *ptr,\
unsigned long off, u##bits val) \
{ \
btrfs_set_token_##bits(eb, ptr, off, val, NULL); \
@@ -1472,7 +1473,8 @@
DECLARE_BTRFS_SETGET_BITS(64)
#define BTRFS_SETGET_FUNCS(name, type, member, bits) \
-static inline u##bits btrfs_##name(struct extent_buffer *eb, type *s) \
+static inline u##bits btrfs_##name(const struct extent_buffer *eb, \
+ const type *s) \
{ \
BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \
return btrfs_get_##bits(eb, s, offsetof(type, member)); \
@@ -1483,7 +1485,8 @@
BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \
btrfs_set_##bits(eb, s, offsetof(type, member), val); \
} \
-static inline u##bits btrfs_token_##name(struct extent_buffer *eb, type *s, \
+static inline u##bits btrfs_token_##name(const struct extent_buffer *eb,\
+ const type *s, \
struct btrfs_map_token *token) \
{ \
BUILD_BUG_ON(sizeof(u##bits) != sizeof(((type *)0))->member); \
@@ -1498,9 +1501,9 @@
}
#define BTRFS_SETGET_HEADER_FUNCS(name, type, member, bits) \
-static inline u##bits btrfs_##name(struct extent_buffer *eb) \
+static inline u##bits btrfs_##name(const struct extent_buffer *eb) \
{ \
- type *p = page_address(eb->pages[0]); \
+ const type *p = page_address(eb->pages[0]); \
u##bits res = le##bits##_to_cpu(p->member); \
return res; \
} \
@@ -1512,7 +1515,7 @@
}
#define BTRFS_SETGET_STACK_FUNCS(name, type, member, bits) \
-static inline u##bits btrfs_##name(type *s) \
+static inline u##bits btrfs_##name(const type *s) \
{ \
return le##bits##_to_cpu(s->member); \
} \
@@ -1818,7 +1821,7 @@
sizeof(struct btrfs_key_ptr) * nr;
}
-void btrfs_node_key(struct extent_buffer *eb,
+void btrfs_node_key(const struct extent_buffer *eb,
struct btrfs_disk_key *disk_key, int nr);
static inline void btrfs_set_node_key(struct extent_buffer *eb,
@@ -1847,28 +1850,28 @@
return (struct btrfs_item *)btrfs_item_nr_offset(nr);
}
-static inline u32 btrfs_item_end(struct extent_buffer *eb,
+static inline u32 btrfs_item_end(const struct extent_buffer *eb,
struct btrfs_item *item)
{
return btrfs_item_offset(eb, item) + btrfs_item_size(eb, item);
}
-static inline u32 btrfs_item_end_nr(struct extent_buffer *eb, int nr)
+static inline u32 btrfs_item_end_nr(const struct extent_buffer *eb, int nr)
{
return btrfs_item_end(eb, btrfs_item_nr(nr));
}
-static inline u32 btrfs_item_offset_nr(struct extent_buffer *eb, int nr)
+static inline u32 btrfs_item_offset_nr(const struct extent_buffer *eb, int nr)
{
return btrfs_item_offset(eb, btrfs_item_nr(nr));
}
-static inline u32 btrfs_item_size_nr(struct extent_buffer *eb, int nr)
+static inline u32 btrfs_item_size_nr(const struct extent_buffer *eb, int nr)
{
return btrfs_item_size(eb, btrfs_item_nr(nr));
}
-static inline void btrfs_item_key(struct extent_buffer *eb,
+static inline void btrfs_item_key(const struct extent_buffer *eb,
struct btrfs_disk_key *disk_key, int nr)
{
struct btrfs_item *item = btrfs_item_nr(nr);
@@ -1904,8 +1907,8 @@
BTRFS_SETGET_STACK_FUNCS(stack_dir_transid, struct btrfs_dir_item,
transid, 64);
-static inline void btrfs_dir_item_key(struct extent_buffer *eb,
- struct btrfs_dir_item *item,
+static inline void btrfs_dir_item_key(const struct extent_buffer *eb,
+ const struct btrfs_dir_item *item,
struct btrfs_disk_key *key)
{
read_eb_member(eb, item, struct btrfs_dir_item, location, key);
@@ -1913,7 +1916,7 @@
static inline void btrfs_set_dir_item_key(struct extent_buffer *eb,
struct btrfs_dir_item *item,
- struct btrfs_disk_key *key)
+ const struct btrfs_disk_key *key)
{
write_eb_member(eb, item, struct btrfs_dir_item, location, key);
}
@@ -1925,8 +1928,8 @@
BTRFS_SETGET_FUNCS(free_space_generation, struct btrfs_free_space_header,
generation, 64);
-static inline void btrfs_free_space_key(struct extent_buffer *eb,
- struct btrfs_free_space_header *h,
+static inline void btrfs_free_space_key(const struct extent_buffer *eb,
+ const struct btrfs_free_space_header *h,
struct btrfs_disk_key *key)
{
read_eb_member(eb, h, struct btrfs_free_space_header, location, key);
@@ -1934,7 +1937,7 @@
static inline void btrfs_set_free_space_key(struct extent_buffer *eb,
struct btrfs_free_space_header *h,
- struct btrfs_disk_key *key)
+ const struct btrfs_disk_key *key)
{
write_eb_member(eb, h, struct btrfs_free_space_header, location, key);
}
@@ -1961,25 +1964,25 @@
disk->objectid = cpu_to_le64(cpu->objectid);
}
-static inline void btrfs_node_key_to_cpu(struct extent_buffer *eb,
- struct btrfs_key *key, int nr)
+static inline void btrfs_node_key_to_cpu(const struct extent_buffer *eb,
+ struct btrfs_key *key, int nr)
{
struct btrfs_disk_key disk_key;
btrfs_node_key(eb, &disk_key, nr);
btrfs_disk_key_to_cpu(key, &disk_key);
}
-static inline void btrfs_item_key_to_cpu(struct extent_buffer *eb,
- struct btrfs_key *key, int nr)
+static inline void btrfs_item_key_to_cpu(const struct extent_buffer *eb,
+ struct btrfs_key *key, int nr)
{
struct btrfs_disk_key disk_key;
btrfs_item_key(eb, &disk_key, nr);
btrfs_disk_key_to_cpu(key, &disk_key);
}
-static inline void btrfs_dir_item_key_to_cpu(struct extent_buffer *eb,
- struct btrfs_dir_item *item,
- struct btrfs_key *key)
+static inline void btrfs_dir_item_key_to_cpu(const struct extent_buffer *eb,
+ const struct btrfs_dir_item *item,
+ struct btrfs_key *key)
{
struct btrfs_disk_key disk_key;
btrfs_dir_item_key(eb, item, &disk_key);
@@ -2012,7 +2015,7 @@
nritems, 32);
BTRFS_SETGET_STACK_FUNCS(stack_header_bytenr, struct btrfs_header, bytenr, 64);
-static inline int btrfs_header_flag(struct extent_buffer *eb, u64 flag)
+static inline int btrfs_header_flag(const struct extent_buffer *eb, u64 flag)
{
return (btrfs_header_flags(eb) & flag) == flag;
}
@@ -2031,7 +2034,7 @@
return (flags & flag) == flag;
}
-static inline int btrfs_header_backref_rev(struct extent_buffer *eb)
+static inline int btrfs_header_backref_rev(const struct extent_buffer *eb)
{
u64 flags = btrfs_header_flags(eb);
return flags >> BTRFS_BACKREF_REV_SHIFT;
@@ -2051,12 +2054,12 @@
return offsetof(struct btrfs_header, fsid);
}
-static inline unsigned long btrfs_header_chunk_tree_uuid(struct extent_buffer *eb)
+static inline unsigned long btrfs_header_chunk_tree_uuid(const struct extent_buffer *eb)
{
return offsetof(struct btrfs_header, chunk_tree_uuid);
}
-static inline int btrfs_is_leaf(struct extent_buffer *eb)
+static inline int btrfs_is_leaf(const struct extent_buffer *eb)
{
return btrfs_header_level(eb) == 0;
}
@@ -2090,12 +2093,12 @@
BTRFS_SETGET_STACK_FUNCS(root_rtransid, struct btrfs_root_item,
rtransid, 64);
-static inline bool btrfs_root_readonly(struct btrfs_root *root)
+static inline bool btrfs_root_readonly(const struct btrfs_root *root)
{
return (root->root_item.flags & cpu_to_le64(BTRFS_ROOT_SUBVOL_RDONLY)) != 0;
}
-static inline bool btrfs_root_dead(struct btrfs_root *root)
+static inline bool btrfs_root_dead(const struct btrfs_root *root)
{
return (root->root_item.flags & cpu_to_le64(BTRFS_ROOT_SUBVOL_DEAD)) != 0;
}
@@ -2152,51 +2155,51 @@
/* struct btrfs_balance_item */
BTRFS_SETGET_FUNCS(balance_flags, struct btrfs_balance_item, flags, 64);
-static inline void btrfs_balance_data(struct extent_buffer *eb,
- struct btrfs_balance_item *bi,
+static inline void btrfs_balance_data(const struct extent_buffer *eb,
+ const struct btrfs_balance_item *bi,
struct btrfs_disk_balance_args *ba)
{
read_eb_member(eb, bi, struct btrfs_balance_item, data, ba);
}
static inline void btrfs_set_balance_data(struct extent_buffer *eb,
- struct btrfs_balance_item *bi,
- struct btrfs_disk_balance_args *ba)
+ struct btrfs_balance_item *bi,
+ const struct btrfs_disk_balance_args *ba)
{
write_eb_member(eb, bi, struct btrfs_balance_item, data, ba);
}
-static inline void btrfs_balance_meta(struct extent_buffer *eb,
- struct btrfs_balance_item *bi,
+static inline void btrfs_balance_meta(const struct extent_buffer *eb,
+ const struct btrfs_balance_item *bi,
struct btrfs_disk_balance_args *ba)
{
read_eb_member(eb, bi, struct btrfs_balance_item, meta, ba);
}
static inline void btrfs_set_balance_meta(struct extent_buffer *eb,
- struct btrfs_balance_item *bi,
- struct btrfs_disk_balance_args *ba)
+ struct btrfs_balance_item *bi,
+ const struct btrfs_disk_balance_args *ba)
{
write_eb_member(eb, bi, struct btrfs_balance_item, meta, ba);
}
-static inline void btrfs_balance_sys(struct extent_buffer *eb,
- struct btrfs_balance_item *bi,
+static inline void btrfs_balance_sys(const struct extent_buffer *eb,
+ const struct btrfs_balance_item *bi,
struct btrfs_disk_balance_args *ba)
{
read_eb_member(eb, bi, struct btrfs_balance_item, sys, ba);
}
static inline void btrfs_set_balance_sys(struct extent_buffer *eb,
- struct btrfs_balance_item *bi,
- struct btrfs_disk_balance_args *ba)
+ struct btrfs_balance_item *bi,
+ const struct btrfs_disk_balance_args *ba)
{
write_eb_member(eb, bi, struct btrfs_balance_item, sys, ba);
}
static inline void
btrfs_disk_balance_args_to_cpu(struct btrfs_balance_args *cpu,
- struct btrfs_disk_balance_args *disk)
+ const struct btrfs_disk_balance_args *disk)
{
memset(cpu, 0, sizeof(*cpu));
@@ -2216,7 +2219,7 @@
static inline void
btrfs_cpu_balance_args_to_disk(struct btrfs_disk_balance_args *disk,
- struct btrfs_balance_args *cpu)
+ const struct btrfs_balance_args *cpu)
{
memset(disk, 0, sizeof(*disk));
@@ -2284,7 +2287,7 @@
BTRFS_SETGET_STACK_FUNCS(super_uuid_tree_generation, struct btrfs_super_block,
uuid_tree_generation, 64);
-static inline int btrfs_super_csum_size(struct btrfs_super_block *s)
+static inline int btrfs_super_csum_size(const struct btrfs_super_block *s)
{
u16 t = btrfs_super_csum_type(s);
/*
@@ -2303,8 +2306,8 @@
* this returns the address of the start of the last item,
* which is the stop of the leaf data stack
*/
-static inline unsigned int leaf_data_end(struct btrfs_root *root,
- struct extent_buffer *leaf)
+static inline unsigned int leaf_data_end(const struct btrfs_root *root,
+ const struct extent_buffer *leaf)
{
u32 nr = btrfs_header_nritems(leaf);
@@ -2329,7 +2332,7 @@
struct btrfs_file_extent_item, compression, 8);
static inline unsigned long
-btrfs_file_extent_inline_start(struct btrfs_file_extent_item *e)
+btrfs_file_extent_inline_start(const struct btrfs_file_extent_item *e)
{
return (unsigned long)e + BTRFS_FILE_EXTENT_INLINE_DATA_START;
}
@@ -2363,8 +2366,9 @@
* size of any extent headers. If a file is compressed on disk, this is
* the compressed size
*/
-static inline u32 btrfs_file_extent_inline_item_len(struct extent_buffer *eb,
- struct btrfs_item *e)
+static inline u32 btrfs_file_extent_inline_item_len(
+ const struct extent_buffer *eb,
+ struct btrfs_item *e)
{
return btrfs_item_size(eb, e) - BTRFS_FILE_EXTENT_INLINE_DATA_START;
}
@@ -2372,9 +2376,9 @@
/* this returns the number of file bytes represented by the inline item.
* If an item is compressed, this is the uncompressed size
*/
-static inline u32 btrfs_file_extent_inline_len(struct extent_buffer *eb,
- int slot,
- struct btrfs_file_extent_item *fi)
+static inline u32 btrfs_file_extent_inline_len(const struct extent_buffer *eb,
+ int slot,
+ const struct btrfs_file_extent_item *fi)
{
struct btrfs_map_token token;
@@ -2396,8 +2400,8 @@
/* btrfs_dev_stats_item */
-static inline u64 btrfs_dev_stats_value(struct extent_buffer *eb,
- struct btrfs_dev_stats_item *ptr,
+static inline u64 btrfs_dev_stats_value(const struct extent_buffer *eb,
+ const struct btrfs_dev_stats_item *ptr,
int index)
{
u64 val;
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 57d375c..77b3241 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -50,6 +50,7 @@
#include "sysfs.h"
#include "qgroup.h"
#include "compression.h"
+#include "tree-checker.h"
#ifdef CONFIG_X86
#include <asm/cpufeature.h>
@@ -452,9 +453,9 @@
int mirror_num = 0;
int failed_mirror = 0;
- clear_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);
io_tree = &BTRFS_I(root->fs_info->btree_inode)->io_tree;
while (1) {
+ clear_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);
ret = read_extent_buffer_pages(io_tree, eb, WAIT_COMPLETE,
btree_get_extent, mirror_num);
if (!ret) {
@@ -465,14 +466,6 @@
ret = -EIO;
}
- /*
- * This buffer's crc is fine, but its contents are corrupted, so
- * there is no reason to read the other copies, they won't be
- * any less wrong.
- */
- if (test_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags))
- break;
-
num_copies = btrfs_num_copies(root->fs_info,
eb->start, eb->len);
if (num_copies == 1)
@@ -546,145 +539,6 @@
return ret;
}
-#define CORRUPT(reason, eb, root, slot) \
- btrfs_crit(root->fs_info, "corrupt %s, %s: block=%llu," \
- " root=%llu, slot=%d", \
- btrfs_header_level(eb) == 0 ? "leaf" : "node",\
- reason, btrfs_header_bytenr(eb), root->objectid, slot)
-
-static noinline int check_leaf(struct btrfs_root *root,
- struct extent_buffer *leaf)
-{
- struct btrfs_key key;
- struct btrfs_key leaf_key;
- u32 nritems = btrfs_header_nritems(leaf);
- int slot;
-
- /*
- * Extent buffers from a relocation tree have a owner field that
- * corresponds to the subvolume tree they are based on. So just from an
- * extent buffer alone we can not find out what is the id of the
- * corresponding subvolume tree, so we can not figure out if the extent
- * buffer corresponds to the root of the relocation tree or not. So skip
- * this check for relocation trees.
- */
- if (nritems == 0 && !btrfs_header_flag(leaf, BTRFS_HEADER_FLAG_RELOC)) {
- struct btrfs_root *check_root;
-
- key.objectid = btrfs_header_owner(leaf);
- key.type = BTRFS_ROOT_ITEM_KEY;
- key.offset = (u64)-1;
-
- check_root = btrfs_get_fs_root(root->fs_info, &key, false);
- /*
- * The only reason we also check NULL here is that during
- * open_ctree() some roots has not yet been set up.
- */
- if (!IS_ERR_OR_NULL(check_root)) {
- struct extent_buffer *eb;
-
- eb = btrfs_root_node(check_root);
- /* if leaf is the root, then it's fine */
- if (leaf != eb) {
- CORRUPT("non-root leaf's nritems is 0",
- leaf, check_root, 0);
- free_extent_buffer(eb);
- return -EIO;
- }
- free_extent_buffer(eb);
- }
- return 0;
- }
-
- if (nritems == 0)
- return 0;
-
- /* Check the 0 item */
- if (btrfs_item_offset_nr(leaf, 0) + btrfs_item_size_nr(leaf, 0) !=
- BTRFS_LEAF_DATA_SIZE(root)) {
- CORRUPT("invalid item offset size pair", leaf, root, 0);
- return -EIO;
- }
-
- /*
- * Check to make sure each items keys are in the correct order and their
- * offsets make sense. We only have to loop through nritems-1 because
- * we check the current slot against the next slot, which verifies the
- * next slot's offset+size makes sense and that the current's slot
- * offset is correct.
- */
- for (slot = 0; slot < nritems - 1; slot++) {
- btrfs_item_key_to_cpu(leaf, &leaf_key, slot);
- btrfs_item_key_to_cpu(leaf, &key, slot + 1);
-
- /* Make sure the keys are in the right order */
- if (btrfs_comp_cpu_keys(&leaf_key, &key) >= 0) {
- CORRUPT("bad key order", leaf, root, slot);
- return -EIO;
- }
-
- /*
- * Make sure the offset and ends are right, remember that the
- * item data starts at the end of the leaf and grows towards the
- * front.
- */
- if (btrfs_item_offset_nr(leaf, slot) !=
- btrfs_item_end_nr(leaf, slot + 1)) {
- CORRUPT("slot offset bad", leaf, root, slot);
- return -EIO;
- }
-
- /*
- * Check to make sure that we don't point outside of the leaf,
- * just in case all the items are consistent to each other, but
- * all point outside of the leaf.
- */
- if (btrfs_item_end_nr(leaf, slot) >
- BTRFS_LEAF_DATA_SIZE(root)) {
- CORRUPT("slot end outside of leaf", leaf, root, slot);
- return -EIO;
- }
- }
-
- return 0;
-}
-
-static int check_node(struct btrfs_root *root, struct extent_buffer *node)
-{
- unsigned long nr = btrfs_header_nritems(node);
- struct btrfs_key key, next_key;
- int slot;
- u64 bytenr;
- int ret = 0;
-
- if (nr == 0 || nr > BTRFS_NODEPTRS_PER_BLOCK(root)) {
- btrfs_crit(root->fs_info,
- "corrupt node: block %llu root %llu nritems %lu",
- node->start, root->objectid, nr);
- return -EIO;
- }
-
- for (slot = 0; slot < nr - 1; slot++) {
- bytenr = btrfs_node_blockptr(node, slot);
- btrfs_node_key_to_cpu(node, &key, slot);
- btrfs_node_key_to_cpu(node, &next_key, slot + 1);
-
- if (!bytenr) {
- CORRUPT("invalid item slot", node, root, slot);
- ret = -EIO;
- goto out;
- }
-
- if (btrfs_comp_cpu_keys(&key, &next_key) >= 0) {
- CORRUPT("bad key order", node, root, slot);
- ret = -EIO;
- goto out;
- }
- }
-out:
- return ret;
-}
-
static int btree_readpage_end_io_hook(struct btrfs_io_bio *io_bio,
u64 phy_offset, struct page *page,
u64 start, u64 end, int mirror)
@@ -750,12 +604,12 @@
* that we don't try and read the other copies of this block, just
* return -EIO.
*/
- if (found_level == 0 && check_leaf(root, eb)) {
+ if (found_level == 0 && btrfs_check_leaf_full(root, eb)) {
set_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);
ret = -EIO;
}
- if (found_level > 0 && check_node(root, eb))
+ if (found_level > 0 && btrfs_check_node(root, eb))
ret = -EIO;
if (!ret)
@@ -4086,7 +3940,13 @@
buf->len,
root->fs_info->dirty_metadata_batch);
#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
- if (btrfs_header_level(buf) == 0 && check_leaf(root, buf)) {
+ /*
+ * Since btrfs_mark_buffer_dirty() can be called with item pointer set
+ * but item data not updated.
+ * So here we should only check item pointers, not item data.
+ */
+ if (btrfs_header_level(buf) == 0 &&
+ btrfs_check_leaf_relaxed(root, buf)) {
btrfs_print_leaf(root, buf);
ASSERT(0);
}
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index a775307..7938c48 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -9896,6 +9896,8 @@
int ret = 0;
struct btrfs_key found_key;
struct extent_buffer *leaf;
+ struct btrfs_block_group_item bg;
+ u64 flags;
int slot;
ret = btrfs_search_slot(NULL, root, key, path, 0, 0);
@@ -9930,8 +9932,32 @@
"logical %llu len %llu found bg but no related chunk",
found_key.objectid, found_key.offset);
ret = -ENOENT;
+ } else if (em->start != found_key.objectid ||
+ em->len != found_key.offset) {
+ btrfs_err(root->fs_info,
+ "block group %llu len %llu mismatch with chunk %llu len %llu",
+ found_key.objectid, found_key.offset,
+ em->start, em->len);
+ ret = -EUCLEAN;
} else {
- ret = 0;
+ read_extent_buffer(leaf, &bg,
+ btrfs_item_ptr_offset(leaf, slot),
+ sizeof(bg));
+ flags = btrfs_block_group_flags(&bg) &
+ BTRFS_BLOCK_GROUP_TYPE_MASK;
+
+ if (flags != (em->map_lookup->type &
+ BTRFS_BLOCK_GROUP_TYPE_MASK)) {
+ btrfs_err(root->fs_info,
+"block group %llu len %llu type flags 0x%llx mismatch with chunk type flags 0x%llx",
+ found_key.objectid,
+ found_key.offset, flags,
+ (BTRFS_BLOCK_GROUP_TYPE_MASK &
+ em->map_lookup->type));
+ ret = -EUCLEAN;
+ } else {
+ ret = 0;
+ }
}
free_extent_map(em);
goto out;
@@ -10159,6 +10185,62 @@
return cache;
}
+
+/*
+ * Iterate all chunks and verify that each of them has the corresponding block
+ * group
+ */
+static int check_chunk_block_group_mappings(struct btrfs_fs_info *fs_info)
+{
+ struct btrfs_mapping_tree *map_tree = &fs_info->mapping_tree;
+ struct extent_map *em;
+ struct btrfs_block_group_cache *bg;
+ u64 start = 0;
+ int ret = 0;
+
+ while (1) {
+ read_lock(&map_tree->map_tree.lock);
+ /*
+ * lookup_extent_mapping will return the first extent map
+ * intersecting the range, so setting @len to 1 is enough to
+ * get the first chunk.
+ */
+ em = lookup_extent_mapping(&map_tree->map_tree, start, 1);
+ read_unlock(&map_tree->map_tree.lock);
+ if (!em)
+ break;
+
+ bg = btrfs_lookup_block_group(fs_info, em->start);
+ if (!bg) {
+ btrfs_err(fs_info,
+ "chunk start=%llu len=%llu doesn't have corresponding block group",
+ em->start, em->len);
+ ret = -EUCLEAN;
+ free_extent_map(em);
+ break;
+ }
+ if (bg->key.objectid != em->start ||
+ bg->key.offset != em->len ||
+ (bg->flags & BTRFS_BLOCK_GROUP_TYPE_MASK) !=
+ (em->map_lookup->type & BTRFS_BLOCK_GROUP_TYPE_MASK)) {
+ btrfs_err(fs_info,
+"chunk start=%llu len=%llu flags=0x%llx doesn't match block group start=%llu len=%llu flags=0x%llx",
+ em->start, em->len,
+ em->map_lookup->type & BTRFS_BLOCK_GROUP_TYPE_MASK,
+ bg->key.objectid, bg->key.offset,
+ bg->flags & BTRFS_BLOCK_GROUP_TYPE_MASK);
+ ret = -EUCLEAN;
+ free_extent_map(em);
+ btrfs_put_block_group(bg);
+ break;
+ }
+ start = em->start + em->len;
+ free_extent_map(em);
+ btrfs_put_block_group(bg);
+ }
+ return ret;
+}
+
int btrfs_read_block_groups(struct btrfs_root *root)
{
struct btrfs_path *path;
@@ -10343,7 +10425,7 @@
}
init_global_block_rsv(info);
- ret = 0;
+ ret = check_chunk_block_group_mappings(info);
error:
btrfs_free_path(path);
return ret;
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 32680b5..1a45df7 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -5431,9 +5431,8 @@
return ret;
}
-void read_extent_buffer(struct extent_buffer *eb, void *dstv,
- unsigned long start,
- unsigned long len)
+void read_extent_buffer(const struct extent_buffer *eb, void *dstv,
+ unsigned long start, unsigned long len)
{
size_t cur;
size_t offset;
@@ -5462,9 +5461,9 @@
}
}
-int read_extent_buffer_to_user(struct extent_buffer *eb, void __user *dstv,
- unsigned long start,
- unsigned long len)
+int read_extent_buffer_to_user(const struct extent_buffer *eb,
+ void __user *dstv,
+ unsigned long start, unsigned long len)
{
size_t cur;
size_t offset;
@@ -5504,10 +5503,10 @@
* return 1 if the item spans two pages.
* return -EINVAL otherwise.
*/
-int map_private_extent_buffer(struct extent_buffer *eb, unsigned long start,
- unsigned long min_len, char **map,
- unsigned long *map_start,
- unsigned long *map_len)
+int map_private_extent_buffer(const struct extent_buffer *eb,
+ unsigned long start, unsigned long min_len,
+ char **map, unsigned long *map_start,
+ unsigned long *map_len)
{
size_t offset = start & (PAGE_SIZE - 1);
char *kaddr;
@@ -5541,9 +5540,8 @@
return 0;
}
-int memcmp_extent_buffer(struct extent_buffer *eb, const void *ptrv,
- unsigned long start,
- unsigned long len)
+int memcmp_extent_buffer(const struct extent_buffer *eb, const void *ptrv,
+ unsigned long start, unsigned long len)
{
size_t cur;
size_t offset;
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index ab31d14..9ecdc95 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -396,14 +396,13 @@
atomic_inc(&eb->refs);
}
-int memcmp_extent_buffer(struct extent_buffer *eb, const void *ptrv,
- unsigned long start,
- unsigned long len);
-void read_extent_buffer(struct extent_buffer *eb, void *dst,
+int memcmp_extent_buffer(const struct extent_buffer *eb, const void *ptrv,
+ unsigned long start, unsigned long len);
+void read_extent_buffer(const struct extent_buffer *eb, void *dst,
unsigned long start,
unsigned long len);
-int read_extent_buffer_to_user(struct extent_buffer *eb, void __user *dst,
- unsigned long start,
+int read_extent_buffer_to_user(const struct extent_buffer *eb,
+ void __user *dst, unsigned long start,
unsigned long len);
void write_extent_buffer(struct extent_buffer *eb, const void *src,
unsigned long start, unsigned long len);
@@ -428,10 +427,10 @@
void clear_extent_buffer_uptodate(struct extent_buffer *eb);
int extent_buffer_uptodate(struct extent_buffer *eb);
int extent_buffer_under_io(struct extent_buffer *eb);
-int map_private_extent_buffer(struct extent_buffer *eb, unsigned long offset,
- unsigned long min_len, char **map,
- unsigned long *map_start,
- unsigned long *map_len);
+int map_private_extent_buffer(const struct extent_buffer *eb,
+ unsigned long offset, unsigned long min_len,
+ char **map, unsigned long *map_start,
+ unsigned long *map_len);
void extent_range_clear_dirty_for_io(struct inode *inode, u64 start, u64 end);
void extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end);
void extent_clear_unlock_delalloc(struct inode *inode, u64 start, u64 end,
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 5ca0dbb..69a3c11 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -2464,6 +2464,7 @@
struct rb_node *n;
int count = 0;
+ spin_lock(&ctl->tree_lock);
for (n = rb_first(&ctl->free_space_offset); n; n = rb_next(n)) {
info = rb_entry(n, struct btrfs_free_space, offset_index);
if (info->bytes >= bytes && !block_group->ro)
@@ -2473,6 +2474,7 @@
info->offset, info->bytes,
(info->bitmap) ? "yes" : "no");
}
+ spin_unlock(&ctl->tree_lock);
btrfs_info(block_group->fs_info, "block group has cluster?: %s",
list_empty(&block_group->cluster_list) ? "no" : "yes");
btrfs_info(block_group->fs_info,
diff --git a/fs/btrfs/struct-funcs.c b/fs/btrfs/struct-funcs.c
index 875c757..5e2b92d 100644
--- a/fs/btrfs/struct-funcs.c
+++ b/fs/btrfs/struct-funcs.c
@@ -50,8 +50,8 @@
*/
#define DEFINE_BTRFS_SETGET_BITS(bits) \
-u##bits btrfs_get_token_##bits(struct extent_buffer *eb, void *ptr, \
- unsigned long off, \
+u##bits btrfs_get_token_##bits(const struct extent_buffer *eb, \
+ const void *ptr, unsigned long off, \
struct btrfs_map_token *token) \
{ \
unsigned long part_offset = (unsigned long)ptr; \
@@ -90,7 +90,8 @@
return res; \
} \
void btrfs_set_token_##bits(struct extent_buffer *eb, \
- void *ptr, unsigned long off, u##bits val, \
+ const void *ptr, unsigned long off, \
+ u##bits val, \
struct btrfs_map_token *token) \
{ \
unsigned long part_offset = (unsigned long)ptr; \
@@ -133,7 +134,7 @@
DEFINE_BTRFS_SETGET_BITS(32)
DEFINE_BTRFS_SETGET_BITS(64)
-void btrfs_node_key(struct extent_buffer *eb,
+void btrfs_node_key(const struct extent_buffer *eb,
struct btrfs_disk_key *disk_key, int nr)
{
unsigned long ptr = btrfs_node_key_ptr_offset(nr);
diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c
new file mode 100644
index 0000000..7b69ba7
--- /dev/null
+++ b/fs/btrfs/tree-checker.c
@@ -0,0 +1,649 @@
+/*
+ * Copyright (C) Qu Wenruo 2017. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program.
+ */
+
+/*
+ * The module is used to catch unexpected/corrupted tree block data.
+ * Such behavior can be caused either by a fuzzed image or bugs.
+ *
+ * The objective is to do leaf/node validation checks when tree block is read
+ * from disk, and check *every* possible member, so other code won't
+ * need to checking them again.
+ *
+ * Due to the potential and unwanted damage, every checker needs to be
+ * carefully reviewed otherwise so it does not prevent mount of valid images.
+ */
+
+#include "ctree.h"
+#include "tree-checker.h"
+#include "disk-io.h"
+#include "compression.h"
+#include "hash.h"
+#include "volumes.h"
+
+#define CORRUPT(reason, eb, root, slot) \
+ btrfs_crit(root->fs_info, \
+ "corrupt %s, %s: block=%llu, root=%llu, slot=%d", \
+ btrfs_header_level(eb) == 0 ? "leaf" : "node", \
+ reason, btrfs_header_bytenr(eb), root->objectid, slot)
+
+/*
+ * Error message should follow the following format:
+ * corrupt <type>: <identifier>, <reason>[, <bad_value>]
+ *
+ * @type: leaf or node
+ * @identifier: the necessary info to locate the leaf/node.
+ * It's recommened to decode key.objecitd/offset if it's
+ * meaningful.
+ * @reason: describe the error
+ * @bad_value: optional, it's recommened to output bad value and its
+ * expected value (range).
+ *
+ * Since comma is used to separate the components, only space is allowed
+ * inside each component.
+ */
+
+/*
+ * Append generic "corrupt leaf/node root=%llu block=%llu slot=%d: " to @fmt.
+ * Allows callers to customize the output.
+ */
+__printf(4, 5)
+static void generic_err(const struct btrfs_root *root,
+ const struct extent_buffer *eb, int slot,
+ const char *fmt, ...)
+{
+ struct va_format vaf;
+ va_list args;
+
+ va_start(args, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ btrfs_crit(root->fs_info,
+ "corrupt %s: root=%llu block=%llu slot=%d, %pV",
+ btrfs_header_level(eb) == 0 ? "leaf" : "node",
+ root->objectid, btrfs_header_bytenr(eb), slot, &vaf);
+ va_end(args);
+}
+
+static int check_extent_data_item(struct btrfs_root *root,
+ struct extent_buffer *leaf,
+ struct btrfs_key *key, int slot)
+{
+ struct btrfs_file_extent_item *fi;
+ u32 sectorsize = root->sectorsize;
+ u32 item_size = btrfs_item_size_nr(leaf, slot);
+
+ if (!IS_ALIGNED(key->offset, sectorsize)) {
+ CORRUPT("unaligned key offset for file extent",
+ leaf, root, slot);
+ return -EUCLEAN;
+ }
+
+ fi = btrfs_item_ptr(leaf, slot, struct btrfs_file_extent_item);
+
+ if (btrfs_file_extent_type(leaf, fi) > BTRFS_FILE_EXTENT_TYPES) {
+ CORRUPT("invalid file extent type", leaf, root, slot);
+ return -EUCLEAN;
+ }
+
+ /*
+ * Support for new compression/encrption must introduce incompat flag,
+ * and must be caught in open_ctree().
+ */
+ if (btrfs_file_extent_compression(leaf, fi) > BTRFS_COMPRESS_TYPES) {
+ CORRUPT("invalid file extent compression", leaf, root, slot);
+ return -EUCLEAN;
+ }
+ if (btrfs_file_extent_encryption(leaf, fi)) {
+ CORRUPT("invalid file extent encryption", leaf, root, slot);
+ return -EUCLEAN;
+ }
+ if (btrfs_file_extent_type(leaf, fi) == BTRFS_FILE_EXTENT_INLINE) {
+ /* Inline extent must have 0 as key offset */
+ if (key->offset) {
+ CORRUPT("inline extent has non-zero key offset",
+ leaf, root, slot);
+ return -EUCLEAN;
+ }
+
+ /* Compressed inline extent has no on-disk size, skip it */
+ if (btrfs_file_extent_compression(leaf, fi) !=
+ BTRFS_COMPRESS_NONE)
+ return 0;
+
+ /* Uncompressed inline extent size must match item size */
+ if (item_size != BTRFS_FILE_EXTENT_INLINE_DATA_START +
+ btrfs_file_extent_ram_bytes(leaf, fi)) {
+ CORRUPT("plaintext inline extent has invalid size",
+ leaf, root, slot);
+ return -EUCLEAN;
+ }
+ return 0;
+ }
+
+ /* Regular or preallocated extent has fixed item size */
+ if (item_size != sizeof(*fi)) {
+ CORRUPT(
+ "regluar or preallocated extent data item size is invalid",
+ leaf, root, slot);
+ return -EUCLEAN;
+ }
+ if (!IS_ALIGNED(btrfs_file_extent_ram_bytes(leaf, fi), sectorsize) ||
+ !IS_ALIGNED(btrfs_file_extent_disk_bytenr(leaf, fi), sectorsize) ||
+ !IS_ALIGNED(btrfs_file_extent_disk_num_bytes(leaf, fi), sectorsize) ||
+ !IS_ALIGNED(btrfs_file_extent_offset(leaf, fi), sectorsize) ||
+ !IS_ALIGNED(btrfs_file_extent_num_bytes(leaf, fi), sectorsize)) {
+ CORRUPT(
+ "regular or preallocated extent data item has unaligned value",
+ leaf, root, slot);
+ return -EUCLEAN;
+ }
+
+ return 0;
+}
+
+static int check_csum_item(struct btrfs_root *root, struct extent_buffer *leaf,
+ struct btrfs_key *key, int slot)
+{
+ u32 sectorsize = root->sectorsize;
+ u32 csumsize = btrfs_super_csum_size(root->fs_info->super_copy);
+
+ if (key->objectid != BTRFS_EXTENT_CSUM_OBJECTID) {
+ CORRUPT("invalid objectid for csum item", leaf, root, slot);
+ return -EUCLEAN;
+ }
+ if (!IS_ALIGNED(key->offset, sectorsize)) {
+ CORRUPT("unaligned key offset for csum item", leaf, root, slot);
+ return -EUCLEAN;
+ }
+ if (!IS_ALIGNED(btrfs_item_size_nr(leaf, slot), csumsize)) {
+ CORRUPT("unaligned csum item size", leaf, root, slot);
+ return -EUCLEAN;
+ }
+ return 0;
+}
+
+/*
+ * Customized reported for dir_item, only important new info is key->objectid,
+ * which represents inode number
+ */
+__printf(4, 5)
+static void dir_item_err(const struct btrfs_root *root,
+ const struct extent_buffer *eb, int slot,
+ const char *fmt, ...)
+{
+ struct btrfs_key key;
+ struct va_format vaf;
+ va_list args;
+
+ btrfs_item_key_to_cpu(eb, &key, slot);
+ va_start(args, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ btrfs_crit(root->fs_info,
+ "corrupt %s: root=%llu block=%llu slot=%d ino=%llu, %pV",
+ btrfs_header_level(eb) == 0 ? "leaf" : "node", root->objectid,
+ btrfs_header_bytenr(eb), slot, key.objectid, &vaf);
+ va_end(args);
+}
+
+static int check_dir_item(struct btrfs_root *root,
+ struct extent_buffer *leaf,
+ struct btrfs_key *key, int slot)
+{
+ struct btrfs_dir_item *di;
+ u32 item_size = btrfs_item_size_nr(leaf, slot);
+ u32 cur = 0;
+
+ di = btrfs_item_ptr(leaf, slot, struct btrfs_dir_item);
+ while (cur < item_size) {
+ u32 name_len;
+ u32 data_len;
+ u32 max_name_len;
+ u32 total_size;
+ u32 name_hash;
+ u8 dir_type;
+
+ /* header itself should not cross item boundary */
+ if (cur + sizeof(*di) > item_size) {
+ dir_item_err(root, leaf, slot,
+ "dir item header crosses item boundary, have %zu boundary %u",
+ cur + sizeof(*di), item_size);
+ return -EUCLEAN;
+ }
+
+ /* dir type check */
+ dir_type = btrfs_dir_type(leaf, di);
+ if (dir_type >= BTRFS_FT_MAX) {
+ dir_item_err(root, leaf, slot,
+ "invalid dir item type, have %u expect [0, %u)",
+ dir_type, BTRFS_FT_MAX);
+ return -EUCLEAN;
+ }
+
+ if (key->type == BTRFS_XATTR_ITEM_KEY &&
+ dir_type != BTRFS_FT_XATTR) {
+ dir_item_err(root, leaf, slot,
+ "invalid dir item type for XATTR key, have %u expect %u",
+ dir_type, BTRFS_FT_XATTR);
+ return -EUCLEAN;
+ }
+ if (dir_type == BTRFS_FT_XATTR &&
+ key->type != BTRFS_XATTR_ITEM_KEY) {
+ dir_item_err(root, leaf, slot,
+ "xattr dir type found for non-XATTR key");
+ return -EUCLEAN;
+ }
+ if (dir_type == BTRFS_FT_XATTR)
+ max_name_len = XATTR_NAME_MAX;
+ else
+ max_name_len = BTRFS_NAME_LEN;
+
+ /* Name/data length check */
+ name_len = btrfs_dir_name_len(leaf, di);
+ data_len = btrfs_dir_data_len(leaf, di);
+ if (name_len > max_name_len) {
+ dir_item_err(root, leaf, slot,
+ "dir item name len too long, have %u max %u",
+ name_len, max_name_len);
+ return -EUCLEAN;
+ }
+ if (name_len + data_len > BTRFS_MAX_XATTR_SIZE(root)) {
+ dir_item_err(root, leaf, slot,
+ "dir item name and data len too long, have %u max %u",
+ name_len + data_len,
+ BTRFS_MAX_XATTR_SIZE(root));
+ return -EUCLEAN;
+ }
+
+ if (data_len && dir_type != BTRFS_FT_XATTR) {
+ dir_item_err(root, leaf, slot,
+ "dir item with invalid data len, have %u expect 0",
+ data_len);
+ return -EUCLEAN;
+ }
+
+ total_size = sizeof(*di) + name_len + data_len;
+
+ /* header and name/data should not cross item boundary */
+ if (cur + total_size > item_size) {
+ dir_item_err(root, leaf, slot,
+ "dir item data crosses item boundary, have %u boundary %u",
+ cur + total_size, item_size);
+ return -EUCLEAN;
+ }
+
+ /*
+ * Special check for XATTR/DIR_ITEM, as key->offset is name
+ * hash, should match its name
+ */
+ if (key->type == BTRFS_DIR_ITEM_KEY ||
+ key->type == BTRFS_XATTR_ITEM_KEY) {
+ char namebuf[max(BTRFS_NAME_LEN, XATTR_NAME_MAX)];
+
+ read_extent_buffer(leaf, namebuf,
+ (unsigned long)(di + 1), name_len);
+ name_hash = btrfs_name_hash(namebuf, name_len);
+ if (key->offset != name_hash) {
+ dir_item_err(root, leaf, slot,
+ "name hash mismatch with key, have 0x%016x expect 0x%016llx",
+ name_hash, key->offset);
+ return -EUCLEAN;
+ }
+ }
+ cur += total_size;
+ di = (struct btrfs_dir_item *)((void *)di + total_size);
+ }
+ return 0;
+}
+
+__printf(4, 5)
+__cold
+static void block_group_err(const struct btrfs_fs_info *fs_info,
+ const struct extent_buffer *eb, int slot,
+ const char *fmt, ...)
+{
+ struct btrfs_key key;
+ struct va_format vaf;
+ va_list args;
+
+ btrfs_item_key_to_cpu(eb, &key, slot);
+ va_start(args, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ btrfs_crit(fs_info,
+ "corrupt %s: root=%llu block=%llu slot=%d bg_start=%llu bg_len=%llu, %pV",
+ btrfs_header_level(eb) == 0 ? "leaf" : "node",
+ btrfs_header_owner(eb), btrfs_header_bytenr(eb), slot,
+ key.objectid, key.offset, &vaf);
+ va_end(args);
+}
+
+static int check_block_group_item(struct btrfs_fs_info *fs_info,
+ struct extent_buffer *leaf,
+ struct btrfs_key *key, int slot)
+{
+ struct btrfs_block_group_item bgi;
+ u32 item_size = btrfs_item_size_nr(leaf, slot);
+ u64 flags;
+ u64 type;
+
+ /*
+ * Here we don't really care about alignment since extent allocator can
+ * handle it. We care more about the size, as if one block group is
+ * larger than maximum size, it's must be some obvious corruption.
+ */
+ if (key->offset > BTRFS_MAX_DATA_CHUNK_SIZE || key->offset == 0) {
+ block_group_err(fs_info, leaf, slot,
+ "invalid block group size, have %llu expect (0, %llu]",
+ key->offset, BTRFS_MAX_DATA_CHUNK_SIZE);
+ return -EUCLEAN;
+ }
+
+ if (item_size != sizeof(bgi)) {
+ block_group_err(fs_info, leaf, slot,
+ "invalid item size, have %u expect %zu",
+ item_size, sizeof(bgi));
+ return -EUCLEAN;
+ }
+
+ read_extent_buffer(leaf, &bgi, btrfs_item_ptr_offset(leaf, slot),
+ sizeof(bgi));
+ if (btrfs_block_group_chunk_objectid(&bgi) !=
+ BTRFS_FIRST_CHUNK_TREE_OBJECTID) {
+ block_group_err(fs_info, leaf, slot,
+ "invalid block group chunk objectid, have %llu expect %llu",
+ btrfs_block_group_chunk_objectid(&bgi),
+ BTRFS_FIRST_CHUNK_TREE_OBJECTID);
+ return -EUCLEAN;
+ }
+
+ if (btrfs_block_group_used(&bgi) > key->offset) {
+ block_group_err(fs_info, leaf, slot,
+ "invalid block group used, have %llu expect [0, %llu)",
+ btrfs_block_group_used(&bgi), key->offset);
+ return -EUCLEAN;
+ }
+
+ flags = btrfs_block_group_flags(&bgi);
+ if (hweight64(flags & BTRFS_BLOCK_GROUP_PROFILE_MASK) > 1) {
+ block_group_err(fs_info, leaf, slot,
+"invalid profile flags, have 0x%llx (%lu bits set) expect no more than 1 bit set",
+ flags & BTRFS_BLOCK_GROUP_PROFILE_MASK,
+ hweight64(flags & BTRFS_BLOCK_GROUP_PROFILE_MASK));
+ return -EUCLEAN;
+ }
+
+ type = flags & BTRFS_BLOCK_GROUP_TYPE_MASK;
+ if (type != BTRFS_BLOCK_GROUP_DATA &&
+ type != BTRFS_BLOCK_GROUP_METADATA &&
+ type != BTRFS_BLOCK_GROUP_SYSTEM &&
+ type != (BTRFS_BLOCK_GROUP_METADATA |
+ BTRFS_BLOCK_GROUP_DATA)) {
+ block_group_err(fs_info, leaf, slot,
+"invalid type, have 0x%llx (%lu bits set) expect either 0x%llx, 0x%llx, 0x%llx or 0x%llx",
+ type, hweight64(type),
+ BTRFS_BLOCK_GROUP_DATA, BTRFS_BLOCK_GROUP_METADATA,
+ BTRFS_BLOCK_GROUP_SYSTEM,
+ BTRFS_BLOCK_GROUP_METADATA | BTRFS_BLOCK_GROUP_DATA);
+ return -EUCLEAN;
+ }
+ return 0;
+}
+
+/*
+ * Common point to switch the item-specific validation.
+ */
+static int check_leaf_item(struct btrfs_root *root,
+ struct extent_buffer *leaf,
+ struct btrfs_key *key, int slot)
+{
+ int ret = 0;
+
+ switch (key->type) {
+ case BTRFS_EXTENT_DATA_KEY:
+ ret = check_extent_data_item(root, leaf, key, slot);
+ break;
+ case BTRFS_EXTENT_CSUM_KEY:
+ ret = check_csum_item(root, leaf, key, slot);
+ break;
+ case BTRFS_DIR_ITEM_KEY:
+ case BTRFS_DIR_INDEX_KEY:
+ case BTRFS_XATTR_ITEM_KEY:
+ ret = check_dir_item(root, leaf, key, slot);
+ break;
+ case BTRFS_BLOCK_GROUP_ITEM_KEY:
+ ret = check_block_group_item(root->fs_info, leaf, key, slot);
+ break;
+ }
+ return ret;
+}
+
+static int check_leaf(struct btrfs_root *root, struct extent_buffer *leaf,
+ bool check_item_data)
+{
+ struct btrfs_fs_info *fs_info = root->fs_info;
+ /* No valid key type is 0, so all key should be larger than this key */
+ struct btrfs_key prev_key = {0, 0, 0};
+ struct btrfs_key key;
+ u32 nritems = btrfs_header_nritems(leaf);
+ int slot;
+
+ if (btrfs_header_level(leaf) != 0) {
+ generic_err(root, leaf, 0,
+ "invalid level for leaf, have %d expect 0",
+ btrfs_header_level(leaf));
+ return -EUCLEAN;
+ }
+
+ /*
+ * Extent buffers from a relocation tree have a owner field that
+ * corresponds to the subvolume tree they are based on. So just from an
+ * extent buffer alone we can not find out what is the id of the
+ * corresponding subvolume tree, so we can not figure out if the extent
+ * buffer corresponds to the root of the relocation tree or not. So
+ * skip this check for relocation trees.
+ */
+ if (nritems == 0 && !btrfs_header_flag(leaf, BTRFS_HEADER_FLAG_RELOC)) {
+ u64 owner = btrfs_header_owner(leaf);
+ struct btrfs_root *check_root;
+
+ /* These trees must never be empty */
+ if (owner == BTRFS_ROOT_TREE_OBJECTID ||
+ owner == BTRFS_CHUNK_TREE_OBJECTID ||
+ owner == BTRFS_EXTENT_TREE_OBJECTID ||
+ owner == BTRFS_DEV_TREE_OBJECTID ||
+ owner == BTRFS_FS_TREE_OBJECTID ||
+ owner == BTRFS_DATA_RELOC_TREE_OBJECTID) {
+ generic_err(root, leaf, 0,
+ "invalid root, root %llu must never be empty",
+ owner);
+ return -EUCLEAN;
+ }
+ key.objectid = owner;
+ key.type = BTRFS_ROOT_ITEM_KEY;
+ key.offset = (u64)-1;
+
+ check_root = btrfs_get_fs_root(fs_info, &key, false);
+ /*
+ * The only reason we also check NULL here is that during
+ * open_ctree() some roots has not yet been set up.
+ */
+ if (!IS_ERR_OR_NULL(check_root)) {
+ struct extent_buffer *eb;
+
+ eb = btrfs_root_node(check_root);
+ /* if leaf is the root, then it's fine */
+ if (leaf != eb) {
+ CORRUPT("non-root leaf's nritems is 0",
+ leaf, check_root, 0);
+ free_extent_buffer(eb);
+ return -EUCLEAN;
+ }
+ free_extent_buffer(eb);
+ }
+ return 0;
+ }
+
+ if (nritems == 0)
+ return 0;
+
+ /*
+ * Check the following things to make sure this is a good leaf, and
+ * leaf users won't need to bother with similar sanity checks:
+ *
+ * 1) key ordering
+ * 2) item offset and size
+ * No overlap, no hole, all inside the leaf.
+ * 3) item content
+ * If possible, do comprehensive sanity check.
+ * NOTE: All checks must only rely on the item data itself.
+ */
+ for (slot = 0; slot < nritems; slot++) {
+ u32 item_end_expected;
+ int ret;
+
+ btrfs_item_key_to_cpu(leaf, &key, slot);
+
+ /* Make sure the keys are in the right order */
+ if (btrfs_comp_cpu_keys(&prev_key, &key) >= 0) {
+ CORRUPT("bad key order", leaf, root, slot);
+ return -EUCLEAN;
+ }
+
+ /*
+ * Make sure the offset and ends are right, remember that the
+ * item data starts at the end of the leaf and grows towards the
+ * front.
+ */
+ if (slot == 0)
+ item_end_expected = BTRFS_LEAF_DATA_SIZE(root);
+ else
+ item_end_expected = btrfs_item_offset_nr(leaf,
+ slot - 1);
+ if (btrfs_item_end_nr(leaf, slot) != item_end_expected) {
+ CORRUPT("slot offset bad", leaf, root, slot);
+ return -EUCLEAN;
+ }
+
+ /*
+ * Check to make sure that we don't point outside of the leaf,
+ * just in case all the items are consistent to each other, but
+ * all point outside of the leaf.
+ */
+ if (btrfs_item_end_nr(leaf, slot) >
+ BTRFS_LEAF_DATA_SIZE(root)) {
+ CORRUPT("slot end outside of leaf", leaf, root, slot);
+ return -EUCLEAN;
+ }
+
+ /* Also check if the item pointer overlaps with btrfs item. */
+ if (btrfs_item_nr_offset(slot) + sizeof(struct btrfs_item) >
+ btrfs_item_ptr_offset(leaf, slot)) {
+ CORRUPT("slot overlap with its data", leaf, root, slot);
+ return -EUCLEAN;
+ }
+
+ if (check_item_data) {
+ /*
+ * Check if the item size and content meet other
+ * criteria
+ */
+ ret = check_leaf_item(root, leaf, &key, slot);
+ if (ret < 0)
+ return ret;
+ }
+
+ prev_key.objectid = key.objectid;
+ prev_key.type = key.type;
+ prev_key.offset = key.offset;
+ }
+
+ return 0;
+}
+
+int btrfs_check_leaf_full(struct btrfs_root *root, struct extent_buffer *leaf)
+{
+ return check_leaf(root, leaf, true);
+}
+
+int btrfs_check_leaf_relaxed(struct btrfs_root *root,
+ struct extent_buffer *leaf)
+{
+ return check_leaf(root, leaf, false);
+}
+
+int btrfs_check_node(struct btrfs_root *root, struct extent_buffer *node)
+{
+ unsigned long nr = btrfs_header_nritems(node);
+ struct btrfs_key key, next_key;
+ int slot;
+ int level = btrfs_header_level(node);
+ u64 bytenr;
+ int ret = 0;
+
+ if (level <= 0 || level >= BTRFS_MAX_LEVEL) {
+ generic_err(root, node, 0,
+ "invalid level for node, have %d expect [1, %d]",
+ level, BTRFS_MAX_LEVEL - 1);
+ return -EUCLEAN;
+ }
+ if (nr == 0 || nr > BTRFS_NODEPTRS_PER_BLOCK(root)) {
+ btrfs_crit(root->fs_info,
+"corrupt node: root=%llu block=%llu, nritems too %s, have %lu expect range [1,%u]",
+ root->objectid, node->start,
+ nr == 0 ? "small" : "large", nr,
+ BTRFS_NODEPTRS_PER_BLOCK(root));
+ return -EUCLEAN;
+ }
+
+ for (slot = 0; slot < nr - 1; slot++) {
+ bytenr = btrfs_node_blockptr(node, slot);
+ btrfs_node_key_to_cpu(node, &key, slot);
+ btrfs_node_key_to_cpu(node, &next_key, slot + 1);
+
+ if (!bytenr) {
+ generic_err(root, node, slot,
+ "invalid NULL node pointer");
+ ret = -EUCLEAN;
+ goto out;
+ }
+ if (!IS_ALIGNED(bytenr, root->sectorsize)) {
+ generic_err(root, node, slot,
+ "unaligned pointer, have %llu should be aligned to %u",
+ bytenr, root->sectorsize);
+ ret = -EUCLEAN;
+ goto out;
+ }
+
+ if (btrfs_comp_cpu_keys(&key, &next_key) >= 0) {
+ generic_err(root, node, slot,
+ "bad key order, current (%llu %u %llu) next (%llu %u %llu)",
+ key.objectid, key.type, key.offset,
+ next_key.objectid, next_key.type,
+ next_key.offset);
+ ret = -EUCLEAN;
+ goto out;
+ }
+ }
+out:
+ return ret;
+}
diff --git a/fs/btrfs/tree-checker.h b/fs/btrfs/tree-checker.h
new file mode 100644
index 0000000..3d53e8d
--- /dev/null
+++ b/fs/btrfs/tree-checker.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) Qu Wenruo 2017. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program.
+ */
+
+#ifndef __BTRFS_TREE_CHECKER__
+#define __BTRFS_TREE_CHECKER__
+
+#include "ctree.h"
+#include "extent_io.h"
+
+/*
+ * Comprehensive leaf checker.
+ * Will check not only the item pointers, but also every possible member
+ * in item data.
+ */
+int btrfs_check_leaf_full(struct btrfs_root *root, struct extent_buffer *leaf);
+
+/*
+ * Less strict leaf checker.
+ * Will only check item pointers, not reading item data.
+ */
+int btrfs_check_leaf_relaxed(struct btrfs_root *root,
+ struct extent_buffer *leaf);
+int btrfs_check_node(struct btrfs_root *root, struct extent_buffer *node);
+
+#endif
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 76017e1..5aa2749 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4656,7 +4656,7 @@
if (type & BTRFS_BLOCK_GROUP_DATA) {
max_stripe_size = SZ_1G;
- max_chunk_size = 10 * max_stripe_size;
+ max_chunk_size = BTRFS_MAX_DATA_CHUNK_SIZE;
if (!devs_max)
devs_max = BTRFS_MAX_DEVS(info->chunk_root);
} else if (type & BTRFS_BLOCK_GROUP_METADATA) {
@@ -6370,6 +6370,8 @@
u16 num_stripes;
u16 sub_stripes;
u64 type;
+ u64 features;
+ bool mixed = false;
length = btrfs_chunk_length(leaf, chunk);
stripe_len = btrfs_chunk_stripe_len(leaf, chunk);
@@ -6410,6 +6412,32 @@
btrfs_chunk_type(leaf, chunk));
return -EIO;
}
+
+ if ((type & BTRFS_BLOCK_GROUP_TYPE_MASK) == 0) {
+ btrfs_err(root->fs_info, "missing chunk type flag: 0x%llx", type);
+ return -EIO;
+ }
+
+ if ((type & BTRFS_BLOCK_GROUP_SYSTEM) &&
+ (type & (BTRFS_BLOCK_GROUP_METADATA | BTRFS_BLOCK_GROUP_DATA))) {
+ btrfs_err(root->fs_info,
+ "system chunk with data or metadata type: 0x%llx", type);
+ return -EIO;
+ }
+
+ features = btrfs_super_incompat_flags(root->fs_info->super_copy);
+ if (features & BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS)
+ mixed = true;
+
+ if (!mixed) {
+ if ((type & BTRFS_BLOCK_GROUP_METADATA) &&
+ (type & BTRFS_BLOCK_GROUP_DATA)) {
+ btrfs_err(root->fs_info,
+ "mixed chunk type in non-mixed mode: 0x%llx", type);
+ return -EIO;
+ }
+ }
+
if ((type & BTRFS_BLOCK_GROUP_RAID10 && sub_stripes != 2) ||
(type & BTRFS_BLOCK_GROUP_RAID1 && num_stripes < 1) ||
(type & BTRFS_BLOCK_GROUP_RAID5 && num_stripes < 2) ||
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 09ed29c..9c09aa2 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -24,6 +24,8 @@
#include <linux/btrfs.h>
#include "async-thread.h"
+#define BTRFS_MAX_DATA_CHUNK_SIZE (10ULL * SZ_1G)
+
extern struct mutex uuid_mutex;
#define BTRFS_STRIPE_LEN SZ_64K
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 3d2639c..6cbd0d8 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -3983,14 +3983,24 @@
return auth;
}
-
-static int verify_authorizer_reply(struct ceph_connection *con, int len)
+static int add_authorizer_challenge(struct ceph_connection *con,
+ void *challenge_buf, int challenge_buf_len)
{
struct ceph_mds_session *s = con->private;
struct ceph_mds_client *mdsc = s->s_mdsc;
struct ceph_auth_client *ac = mdsc->fsc->client->monc.auth;
- return ceph_auth_verify_authorizer_reply(ac, s->s_auth.authorizer, len);
+ return ceph_auth_add_authorizer_challenge(ac, s->s_auth.authorizer,
+ challenge_buf, challenge_buf_len);
+}
+
+static int verify_authorizer_reply(struct ceph_connection *con)
+{
+ struct ceph_mds_session *s = con->private;
+ struct ceph_mds_client *mdsc = s->s_mdsc;
+ struct ceph_auth_client *ac = mdsc->fsc->client->monc.auth;
+
+ return ceph_auth_verify_authorizer_reply(ac, s->s_auth.authorizer);
}
static int invalidate_authorizer(struct ceph_connection *con)
@@ -4046,6 +4056,7 @@
.put = con_put,
.dispatch = dispatch,
.get_authorizer = get_authorizer,
+ .add_authorizer_challenge = add_authorizer_challenge,
.verify_authorizer_reply = verify_authorizer_reply,
.invalidate_authorizer = invalidate_authorizer,
.peer_reset = peer_reset,
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 2c2f182..f53c139 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -118,6 +118,16 @@
pagevec_reinit(pvec);
}
+/*
+ * Mask used when checking the page offset value passed in via system
+ * calls. This value will be converted to a loff_t which is signed.
+ * Therefore, we want to check the upper PAGE_SHIFT + 1 bits of the
+ * value. The extra bit (- 1 in the shift value) is to take the sign
+ * bit into account.
+ */
+#define PGOFF_LOFFT_MAX \
+ (((1UL << (PAGE_SHIFT + 1)) - 1) << (BITS_PER_LONG - (PAGE_SHIFT + 1)))
+
static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
{
struct inode *inode = file_inode(file);
@@ -136,17 +146,31 @@
vma->vm_flags |= VM_HUGETLB | VM_DONTEXPAND;
vma->vm_ops = &hugetlb_vm_ops;
+ /*
+ * page based offset in vm_pgoff could be sufficiently large to
+ * overflow a loff_t when converted to byte offset. This can
+ * only happen on architectures where sizeof(loff_t) ==
+ * sizeof(unsigned long). So, only check in those instances.
+ */
+ if (sizeof(unsigned long) == sizeof(loff_t)) {
+ if (vma->vm_pgoff & PGOFF_LOFFT_MAX)
+ return -EINVAL;
+ }
+
+ /* must be huge page aligned */
if (vma->vm_pgoff & (~huge_page_mask(h) >> PAGE_SHIFT))
return -EINVAL;
vma_len = (loff_t)(vma->vm_end - vma->vm_start);
+ len = vma_len + ((loff_t)vma->vm_pgoff << PAGE_SHIFT);
+ /* check for overflow */
+ if (len < vma_len)
+ return -EINVAL;
inode_lock(inode);
file_accessed(file);
ret = -ENOMEM;
- len = vma_len + ((loff_t)vma->vm_pgoff << PAGE_SHIFT);
-
if (hugetlb_reserve_pages(inode,
vma->vm_pgoff >> huge_page_order(h),
len >> huge_page_shift(h), vma,
@@ -155,7 +179,7 @@
ret = 0;
if (vma->vm_flags & VM_WRITE && inode->i_size < len)
- inode->i_size = len;
+ i_size_write(inode, len);
out:
inode_unlock(inode);
diff --git a/fs/kernfs/symlink.c b/fs/kernfs/symlink.c
index 9b43ca0..80317b0 100644
--- a/fs/kernfs/symlink.c
+++ b/fs/kernfs/symlink.c
@@ -88,7 +88,7 @@
int slen = strlen(kn->name);
len -= slen;
- strncpy(s + len, kn->name, slen);
+ memcpy(s + len, kn->name, slen);
if (len)
s[--len] = '/';
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 12467ad..03369a8 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -929,16 +929,20 @@
}
ret = udf_dstrCS0toUTF8(outstr, 31, pvoldesc->volIdent, 32);
- if (ret < 0)
- goto out_bh;
-
- strncpy(UDF_SB(sb)->s_volume_ident, outstr, ret);
+ if (ret < 0) {
+ strcpy(UDF_SB(sb)->s_volume_ident, "InvalidName");
+ pr_warn("incorrect volume identification, setting to "
+ "'InvalidName'\n");
+ } else {
+ strncpy(UDF_SB(sb)->s_volume_ident, outstr, ret);
+ }
udf_debug("volIdent[] = '%s'\n", UDF_SB(sb)->s_volume_ident);
ret = udf_dstrCS0toUTF8(outstr, 127, pvoldesc->volSetIdent, 128);
- if (ret < 0)
+ if (ret < 0) {
+ ret = 0;
goto out_bh;
-
+ }
outstr[ret] = 0;
udf_debug("volSetIdent[] = '%s'\n", outstr);
diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c
index 3a3be23..61a1738 100644
--- a/fs/udf/unicode.c
+++ b/fs/udf/unicode.c
@@ -341,6 +341,11 @@
return u_len;
}
+/*
+ * Convert CS0 dstring to output charset. Warning: This function may truncate
+ * input string if it is too long as it is used for informational strings only
+ * and it is better to truncate the string than to refuse mounting a media.
+ */
int udf_dstrCS0toUTF8(uint8_t *utf_o, int o_len,
const uint8_t *ocu_i, int i_len)
{
@@ -349,9 +354,12 @@
if (i_len > 0) {
s_len = ocu_i[i_len - 1];
if (s_len >= i_len) {
- pr_err("incorrect dstring lengths (%d/%d)\n",
- s_len, i_len);
- return -EINVAL;
+ pr_warn("incorrect dstring lengths (%d/%d),"
+ " truncating\n", s_len, i_len);
+ s_len = i_len - 1;
+ /* 2-byte encoding? Need to round properly... */
+ if (ocu_i[0] == 16)
+ s_len -= (s_len - 1) & 2;
}
}
diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
index 6622d46..9687208 100644
--- a/fs/xfs/libxfs/xfs_attr.c
+++ b/fs/xfs/libxfs/xfs_attr.c
@@ -487,7 +487,14 @@
if (args->flags & ATTR_CREATE)
return retval;
retval = xfs_attr_shortform_remove(args);
- ASSERT(retval == 0);
+ if (retval)
+ return retval;
+ /*
+ * Since we have removed the old attr, clear ATTR_REPLACE so
+ * that the leaf format add routine won't trip over the attr
+ * not being around.
+ */
+ args->flags &= ~ATTR_REPLACE;
}
if (args->namelen >= XFS_ATTR_SF_ENTSIZE_MAX ||
diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h
index 070fc49..5031def 100644
--- a/include/linux/bpf_verifier.h
+++ b/include/linux/bpf_verifier.h
@@ -71,6 +71,7 @@
enum bpf_reg_type ptr_type; /* pointer type for load/store insns */
struct bpf_map *map_ptr; /* pointer for call insn into lookup_elem */
};
+ int sanitize_stack_off; /* stack slot to be cleared */
bool seen; /* this insn was processed by the verifier */
};
diff --git a/include/linux/ceph/auth.h b/include/linux/ceph/auth.h
index 374bb1c..035f26a 100644
--- a/include/linux/ceph/auth.h
+++ b/include/linux/ceph/auth.h
@@ -63,8 +63,12 @@
/* ensure that an existing authorizer is up to date */
int (*update_authorizer)(struct ceph_auth_client *ac, int peer_type,
struct ceph_auth_handshake *auth);
+ int (*add_authorizer_challenge)(struct ceph_auth_client *ac,
+ struct ceph_authorizer *a,
+ void *challenge_buf,
+ int challenge_buf_len);
int (*verify_authorizer_reply)(struct ceph_auth_client *ac,
- struct ceph_authorizer *a, size_t len);
+ struct ceph_authorizer *a);
void (*invalidate_authorizer)(struct ceph_auth_client *ac,
int peer_type);
@@ -117,9 +121,12 @@
extern int ceph_auth_update_authorizer(struct ceph_auth_client *ac,
int peer_type,
struct ceph_auth_handshake *a);
+int ceph_auth_add_authorizer_challenge(struct ceph_auth_client *ac,
+ struct ceph_authorizer *a,
+ void *challenge_buf,
+ int challenge_buf_len);
extern int ceph_auth_verify_authorizer_reply(struct ceph_auth_client *ac,
- struct ceph_authorizer *a,
- size_t len);
+ struct ceph_authorizer *a);
extern void ceph_auth_invalidate_authorizer(struct ceph_auth_client *ac,
int peer_type);
diff --git a/include/linux/ceph/ceph_features.h b/include/linux/ceph/ceph_features.h
index ae2f668..cf765db 100644
--- a/include/linux/ceph/ceph_features.h
+++ b/include/linux/ceph/ceph_features.h
@@ -76,6 +76,7 @@
// duplicated since it was introduced at the same time as CEPH_FEATURE_CRUSH_TUNABLES5
#define CEPH_FEATURE_NEW_OSDOPREPLY_ENCODING (1ULL<<58) /* New, v7 encoding */
#define CEPH_FEATURE_FS_FILE_LAYOUT_V2 (1ULL<<58) /* file_layout_t */
+#define CEPH_FEATURE_CEPHX_V2 (1ULL<<61) // *do not share this bit*
/*
* The introduction of CEPH_FEATURE_OSD_SNAPMAPPER caused the feature
@@ -124,7 +125,8 @@
CEPH_FEATURE_MSGR_KEEPALIVE2 | \
CEPH_FEATURE_CRUSH_V4 | \
CEPH_FEATURE_CRUSH_TUNABLES5 | \
- CEPH_FEATURE_NEW_OSDOPREPLY_ENCODING)
+ CEPH_FEATURE_NEW_OSDOPREPLY_ENCODING | \
+ CEPH_FEATURE_CEPHX_V2)
#define CEPH_FEATURES_REQUIRED_DEFAULT \
(CEPH_FEATURE_NOSRCADDR | \
diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h
index 8dbd787..5e1c9c8 100644
--- a/include/linux/ceph/messenger.h
+++ b/include/linux/ceph/messenger.h
@@ -30,7 +30,10 @@
struct ceph_auth_handshake *(*get_authorizer) (
struct ceph_connection *con,
int *proto, int force_new);
- int (*verify_authorizer_reply) (struct ceph_connection *con, int len);
+ int (*add_authorizer_challenge)(struct ceph_connection *con,
+ void *challenge_buf,
+ int challenge_buf_len);
+ int (*verify_authorizer_reply) (struct ceph_connection *con);
int (*invalidate_authorizer)(struct ceph_connection *con);
/* there was some error on the socket (disconnect, whatever) */
@@ -200,9 +203,8 @@
attempt for this connection, client */
u32 peer_global_seq; /* peer's global seq for this connection */
+ struct ceph_auth_handshake *auth;
int auth_retry; /* true if we need a newer authorizer */
- void *auth_reply_buf; /* where to put the authorizer reply */
- int auth_reply_buf_len;
struct mutex mutex;
diff --git a/include/linux/ceph/msgr.h b/include/linux/ceph/msgr.h
index 0fe2656..063f9d7 100644
--- a/include/linux/ceph/msgr.h
+++ b/include/linux/ceph/msgr.h
@@ -90,7 +90,7 @@
#define CEPH_MSGR_TAG_SEQ 13 /* 64-bit int follows with seen seq number */
#define CEPH_MSGR_TAG_KEEPALIVE2 14 /* keepalive2 byte + ceph_timespec */
#define CEPH_MSGR_TAG_KEEPALIVE2_ACK 15 /* keepalive2 reply */
-
+#define CEPH_MSGR_TAG_CHALLENGE_AUTHORIZER 16 /* cephx v2 doing server challenge */
/*
* connection negotiation
diff --git a/include/linux/reset.h b/include/linux/reset.h
index 5daff15..7e99690 100644
--- a/include/linux/reset.h
+++ b/include/linux/reset.h
@@ -13,76 +13,82 @@
int reset_control_status(struct reset_control *rstc);
struct reset_control *__of_reset_control_get(struct device_node *node,
- const char *id, int index, int shared);
+ const char *id, int index, bool shared,
+ bool optional);
+struct reset_control *__reset_control_get(struct device *dev, const char *id,
+ int index, bool shared,
+ bool optional);
void reset_control_put(struct reset_control *rstc);
+int __device_reset(struct device *dev, bool optional);
struct reset_control *__devm_reset_control_get(struct device *dev,
- const char *id, int index, int shared);
-
-int __must_check device_reset(struct device *dev);
-
-static inline int device_reset_optional(struct device *dev)
-{
- return device_reset(dev);
-}
+ const char *id, int index, bool shared,
+ bool optional);
#else
static inline int reset_control_reset(struct reset_control *rstc)
{
- WARN_ON(1);
return 0;
}
static inline int reset_control_assert(struct reset_control *rstc)
{
- WARN_ON(1);
return 0;
}
static inline int reset_control_deassert(struct reset_control *rstc)
{
- WARN_ON(1);
return 0;
}
static inline int reset_control_status(struct reset_control *rstc)
{
- WARN_ON(1);
return 0;
}
static inline void reset_control_put(struct reset_control *rstc)
{
- WARN_ON(1);
}
-static inline int __must_check device_reset(struct device *dev)
+static inline int __device_reset(struct device *dev, bool optional)
{
- WARN_ON(1);
- return -ENOTSUPP;
-}
-
-static inline int device_reset_optional(struct device *dev)
-{
- return -ENOTSUPP;
+ return optional ? 0 : -ENOTSUPP;
}
static inline struct reset_control *__of_reset_control_get(
struct device_node *node,
- const char *id, int index, int shared)
+ const char *id, int index, bool shared,
+ bool optional)
{
- return ERR_PTR(-ENOTSUPP);
+ return optional ? NULL : ERR_PTR(-ENOTSUPP);
+}
+
+static inline struct reset_control *__reset_control_get(
+ struct device *dev, const char *id,
+ int index, bool shared, bool optional)
+{
+ return optional ? NULL : ERR_PTR(-ENOTSUPP);
}
static inline struct reset_control *__devm_reset_control_get(
- struct device *dev,
- const char *id, int index, int shared)
+ struct device *dev, const char *id,
+ int index, bool shared, bool optional)
{
- return ERR_PTR(-ENOTSUPP);
+ return optional ? NULL : ERR_PTR(-ENOTSUPP);
}
#endif /* CONFIG_RESET_CONTROLLER */
+static inline int __must_check device_reset(struct device *dev)
+{
+ return __device_reset(dev, false);
+}
+
+static inline int device_reset_optional(struct device *dev)
+{
+ return __device_reset(dev, true);
+}
+
/**
* reset_control_get_exclusive - Lookup and obtain an exclusive reference
* to a reset controller.
@@ -101,10 +107,7 @@
static inline struct reset_control *
__must_check reset_control_get_exclusive(struct device *dev, const char *id)
{
-#ifndef CONFIG_RESET_CONTROLLER
- WARN_ON(1);
-#endif
- return __of_reset_control_get(dev ? dev->of_node : NULL, id, 0, 0);
+ return __reset_control_get(dev, id, 0, false, false);
}
/**
@@ -132,19 +135,19 @@
static inline struct reset_control *reset_control_get_shared(
struct device *dev, const char *id)
{
- return __of_reset_control_get(dev ? dev->of_node : NULL, id, 0, 1);
+ return __reset_control_get(dev, id, 0, true, false);
}
static inline struct reset_control *reset_control_get_optional_exclusive(
struct device *dev, const char *id)
{
- return __of_reset_control_get(dev ? dev->of_node : NULL, id, 0, 0);
+ return __reset_control_get(dev, id, 0, false, true);
}
static inline struct reset_control *reset_control_get_optional_shared(
struct device *dev, const char *id)
{
- return __of_reset_control_get(dev ? dev->of_node : NULL, id, 0, 1);
+ return __reset_control_get(dev, id, 0, true, true);
}
/**
@@ -160,7 +163,7 @@
static inline struct reset_control *of_reset_control_get_exclusive(
struct device_node *node, const char *id)
{
- return __of_reset_control_get(node, id, 0, 0);
+ return __of_reset_control_get(node, id, 0, false, false);
}
/**
@@ -185,7 +188,7 @@
static inline struct reset_control *of_reset_control_get_shared(
struct device_node *node, const char *id)
{
- return __of_reset_control_get(node, id, 0, 1);
+ return __of_reset_control_get(node, id, 0, true, false);
}
/**
@@ -202,7 +205,7 @@
static inline struct reset_control *of_reset_control_get_exclusive_by_index(
struct device_node *node, int index)
{
- return __of_reset_control_get(node, NULL, index, 0);
+ return __of_reset_control_get(node, NULL, index, false, false);
}
/**
@@ -230,7 +233,7 @@
static inline struct reset_control *of_reset_control_get_shared_by_index(
struct device_node *node, int index)
{
- return __of_reset_control_get(node, NULL, index, 1);
+ return __of_reset_control_get(node, NULL, index, true, false);
}
/**
@@ -249,10 +252,7 @@
__must_check devm_reset_control_get_exclusive(struct device *dev,
const char *id)
{
-#ifndef CONFIG_RESET_CONTROLLER
- WARN_ON(1);
-#endif
- return __devm_reset_control_get(dev, id, 0, 0);
+ return __devm_reset_control_get(dev, id, 0, false, false);
}
/**
@@ -267,19 +267,19 @@
static inline struct reset_control *devm_reset_control_get_shared(
struct device *dev, const char *id)
{
- return __devm_reset_control_get(dev, id, 0, 1);
+ return __devm_reset_control_get(dev, id, 0, true, false);
}
static inline struct reset_control *devm_reset_control_get_optional_exclusive(
struct device *dev, const char *id)
{
- return __devm_reset_control_get(dev, id, 0, 0);
+ return __devm_reset_control_get(dev, id, 0, false, true);
}
static inline struct reset_control *devm_reset_control_get_optional_shared(
struct device *dev, const char *id)
{
- return __devm_reset_control_get(dev, id, 0, 1);
+ return __devm_reset_control_get(dev, id, 0, true, true);
}
/**
@@ -297,7 +297,7 @@
static inline struct reset_control *
devm_reset_control_get_exclusive_by_index(struct device *dev, int index)
{
- return __devm_reset_control_get(dev, NULL, index, 0);
+ return __devm_reset_control_get(dev, NULL, index, false, false);
}
/**
@@ -313,7 +313,7 @@
static inline struct reset_control *
devm_reset_control_get_shared_by_index(struct device *dev, int index)
{
- return __devm_reset_control_get(dev, NULL, index, 1);
+ return __devm_reset_control_get(dev, NULL, index, true, false);
}
/*
diff --git a/include/uapi/linux/btrfs_tree.h b/include/uapi/linux/btrfs_tree.h
index c794c9a..a1ded2a 100644
--- a/include/uapi/linux/btrfs_tree.h
+++ b/include/uapi/linux/btrfs_tree.h
@@ -730,6 +730,7 @@
#define BTRFS_FILE_EXTENT_INLINE 0
#define BTRFS_FILE_EXTENT_REG 1
#define BTRFS_FILE_EXTENT_PREALLOC 2
+#define BTRFS_FILE_EXTENT_TYPES 2
struct btrfs_file_extent_item {
/*
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index dafa270..1438b73 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -540,10 +540,11 @@
/* check_stack_read/write functions track spill/fill of registers,
* stack boundary and alignment are checked in check_mem_access()
*/
-static int check_stack_write(struct bpf_verifier_state *state, int off,
- int size, int value_regno)
+static int check_stack_write(struct bpf_verifier_env *env,
+ struct bpf_verifier_state *state, int off,
+ int size, int value_regno, int insn_idx)
{
- int i;
+ int i, spi = (MAX_BPF_STACK + off) / BPF_REG_SIZE;
/* caller checked that off % size == 0 and -MAX_BPF_STACK <= off < 0,
* so it's aligned access and [off, off + size) are within stack limits
*/
@@ -558,15 +559,37 @@
}
/* save register state */
- state->spilled_regs[(MAX_BPF_STACK + off) / BPF_REG_SIZE] =
- state->regs[value_regno];
+ state->spilled_regs[spi] = state->regs[value_regno];
- for (i = 0; i < BPF_REG_SIZE; i++)
+ for (i = 0; i < BPF_REG_SIZE; i++) {
+ if (state->stack_slot_type[MAX_BPF_STACK + off + i] == STACK_MISC &&
+ !env->allow_ptr_leaks) {
+ int *poff = &env->insn_aux_data[insn_idx].sanitize_stack_off;
+ int soff = (-spi - 1) * BPF_REG_SIZE;
+
+ /* detected reuse of integer stack slot with a pointer
+ * which means either llvm is reusing stack slot or
+ * an attacker is trying to exploit CVE-2018-3639
+ * (speculative store bypass)
+ * Have to sanitize that slot with preemptive
+ * store of zero.
+ */
+ if (*poff && *poff != soff) {
+ /* disallow programs where single insn stores
+ * into two different stack slots, since verifier
+ * cannot sanitize them
+ */
+ verbose("insn %d cannot access two stack slots fp%d and fp%d",
+ insn_idx, *poff, soff);
+ return -EINVAL;
+ }
+ *poff = soff;
+ }
state->stack_slot_type[MAX_BPF_STACK + off + i] = STACK_SPILL;
+ }
} else {
/* regular write of data into stack */
- state->spilled_regs[(MAX_BPF_STACK + off) / BPF_REG_SIZE] =
- (struct bpf_reg_state) {};
+ state->spilled_regs[spi] = (struct bpf_reg_state) {};
for (i = 0; i < size; i++)
state->stack_slot_type[MAX_BPF_STACK + off + i] = STACK_MISC;
@@ -747,7 +770,7 @@
* if t==write && value_regno==-1, some unknown value is stored into memory
* if t==read && value_regno==-1, don't care what we read from memory
*/
-static int check_mem_access(struct bpf_verifier_env *env, u32 regno, int off,
+static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regno, int off,
int bpf_size, enum bpf_access_type t,
int value_regno)
{
@@ -843,7 +866,8 @@
verbose("attempt to corrupt spilled pointer on stack\n");
return -EACCES;
}
- err = check_stack_write(state, off, size, value_regno);
+ err = check_stack_write(env, state, off, size,
+ value_regno, insn_idx);
} else {
err = check_stack_read(state, off, size, value_regno);
}
@@ -877,7 +901,7 @@
return err;
}
-static int check_xadd(struct bpf_verifier_env *env, struct bpf_insn *insn)
+static int check_xadd(struct bpf_verifier_env *env, int insn_idx, struct bpf_insn *insn)
{
struct bpf_reg_state *regs = env->cur_state.regs;
int err;
@@ -910,13 +934,13 @@
}
/* check whether atomic_add can read the memory */
- err = check_mem_access(env, insn->dst_reg, insn->off,
+ err = check_mem_access(env, insn_idx, insn->dst_reg, insn->off,
BPF_SIZE(insn->code), BPF_READ, -1);
if (err)
return err;
/* check whether atomic_add can write into the same memory */
- return check_mem_access(env, insn->dst_reg, insn->off,
+ return check_mem_access(env, insn_idx, insn->dst_reg, insn->off,
BPF_SIZE(insn->code), BPF_WRITE, -1);
}
@@ -1272,7 +1296,7 @@
* is inferred from register state.
*/
for (i = 0; i < meta.access_size; i++) {
- err = check_mem_access(env, meta.regno, i, BPF_B, BPF_WRITE, -1);
+ err = check_mem_access(env, insn_idx, meta.regno, i, BPF_B, BPF_WRITE, -1);
if (err)
return err;
}
@@ -2938,7 +2962,7 @@
/* check that memory (src_reg + off) is readable,
* the state of dst_reg will be updated by this func
*/
- err = check_mem_access(env, insn->src_reg, insn->off,
+ err = check_mem_access(env, insn_idx, insn->src_reg, insn->off,
BPF_SIZE(insn->code), BPF_READ,
insn->dst_reg);
if (err)
@@ -2978,7 +3002,7 @@
enum bpf_reg_type *prev_dst_type, dst_reg_type;
if (BPF_MODE(insn->code) == BPF_XADD) {
- err = check_xadd(env, insn);
+ err = check_xadd(env, insn_idx, insn);
if (err)
return err;
insn_idx++;
@@ -2997,7 +3021,7 @@
dst_reg_type = regs[insn->dst_reg].type;
/* check that memory (dst_reg + off) is writeable */
- err = check_mem_access(env, insn->dst_reg, insn->off,
+ err = check_mem_access(env, insn_idx, insn->dst_reg, insn->off,
BPF_SIZE(insn->code), BPF_WRITE,
insn->src_reg);
if (err)
@@ -3032,7 +3056,7 @@
}
/* check that memory (dst_reg + off) is writeable */
- err = check_mem_access(env, insn->dst_reg, insn->off,
+ err = check_mem_access(env, insn_idx, insn->dst_reg, insn->off,
BPF_SIZE(insn->code), BPF_WRITE,
-1);
if (err)
@@ -3369,6 +3393,34 @@
else
continue;
+ if (type == BPF_WRITE &&
+ env->insn_aux_data[i + delta].sanitize_stack_off) {
+ struct bpf_insn patch[] = {
+ /* Sanitize suspicious stack slot with zero.
+ * There are no memory dependencies for this store,
+ * since it's only using frame pointer and immediate
+ * constant of zero
+ */
+ BPF_ST_MEM(BPF_DW, BPF_REG_FP,
+ env->insn_aux_data[i + delta].sanitize_stack_off,
+ 0),
+ /* the original STX instruction will immediately
+ * overwrite the same stack slot with appropriate value
+ */
+ *insn,
+ };
+
+ cnt = ARRAY_SIZE(patch);
+ new_prog = bpf_patch_insn_data(env, i + delta, patch, cnt);
+ if (!new_prog)
+ return -ENOMEM;
+
+ delta += cnt - 1;
+ env->prog = new_prog;
+ insn = new_prog->insnsi + i + delta;
+ continue;
+ }
+
if (env->insn_aux_data[i + delta].ptr_type != PTR_TO_CTX)
continue;
diff --git a/kernel/debug/kdb/kdb_support.c b/kernel/debug/kdb/kdb_support.c
index 2aed4a3..61cd704 100644
--- a/kernel/debug/kdb/kdb_support.c
+++ b/kernel/debug/kdb/kdb_support.c
@@ -129,13 +129,13 @@
}
if (i >= ARRAY_SIZE(kdb_name_table)) {
debug_kfree(kdb_name_table[0]);
- memcpy(kdb_name_table, kdb_name_table+1,
+ memmove(kdb_name_table, kdb_name_table+1,
sizeof(kdb_name_table[0]) *
(ARRAY_SIZE(kdb_name_table)-1));
} else {
debug_kfree(knt1);
knt1 = kdb_name_table[i];
- memcpy(kdb_name_table+i, kdb_name_table+i+1,
+ memmove(kdb_name_table+i, kdb_name_table+i+1,
sizeof(kdb_name_table[0]) *
(ARRAY_SIZE(kdb_name_table)-i-1));
}
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index a1de021..fbfab57 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -608,7 +608,7 @@
BUG_ON((uprobe->offset & ~PAGE_MASK) +
UPROBE_SWBP_INSN_SIZE > PAGE_SIZE);
- smp_wmb(); /* pairs with rmb() in find_active_uprobe() */
+ smp_wmb(); /* pairs with the smp_rmb() in handle_swbp() */
set_bit(UPROBE_COPY_INSN, &uprobe->flags);
out:
@@ -1902,10 +1902,18 @@
* After we hit the bp, _unregister + _register can install the
* new and not-yet-analyzed uprobe at the same address, restart.
*/
- smp_rmb(); /* pairs with wmb() in install_breakpoint() */
if (unlikely(!test_bit(UPROBE_COPY_INSN, &uprobe->flags)))
goto out;
+ /*
+ * Pairs with the smp_wmb() in prepare_uprobe().
+ *
+ * Guarantees that if we see the UPROBE_COPY_INSN bit set, then
+ * we must also see the stores to &uprobe->arch performed by the
+ * prepare_uprobe() call.
+ */
+ smp_rmb();
+
/* Tracing handlers use ->utask to communicate with fetch methods */
if (!get_utask())
goto out;
diff --git a/lib/kobject.c b/lib/kobject.c
index b733a83..f58c7f2 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -127,7 +127,7 @@
int cur = strlen(kobject_name(parent));
/* back up enough to print this name with '/' */
length -= cur;
- strncpy(path + length, kobject_name(parent), cur);
+ memcpy(path + length, kobject_name(parent), cur);
*(path + --length) = '/';
}
diff --git a/lib/test_hexdump.c b/lib/test_hexdump.c
index 3f415d8..1c3c513a 100644
--- a/lib/test_hexdump.c
+++ b/lib/test_hexdump.c
@@ -81,7 +81,7 @@
const char *q = *result++;
size_t amount = strlen(q);
- strncpy(p, q, amount);
+ memcpy(p, q, amount);
p += amount;
*p++ = ' ';
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 5e3a4db..3e50fcf 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -4170,6 +4170,12 @@
struct resv_map *resv_map;
long gbl_reserve;
+ /* This should never happen */
+ if (from > to) {
+ VM_WARN(1, "%s called with a negative range\n", __func__);
+ return -EINVAL;
+ }
+
/*
* Only apply hugepage reservation if asked. At fault time, an
* attempt will be made for VM_NORESERVE to allocate a page
@@ -4259,7 +4265,9 @@
return 0;
out_err:
if (!vma || vma->vm_flags & VM_MAYSHARE)
- region_abort(resv_map, from, to);
+ /* Don't call region_abort if region_chg failed */
+ if (chg >= 0)
+ region_abort(resv_map, from, to);
if (vma && is_vma_resv_set(vma, HPAGE_RESV_OWNER))
kref_put(&resv_map->refs, resv_map_release);
return ret;
diff --git a/mm/truncate.c b/mm/truncate.c
index 9c809e7..befdc6f 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -443,9 +443,13 @@
*/
spin_lock_irq(&mapping->tree_lock);
spin_unlock_irq(&mapping->tree_lock);
-
- truncate_inode_pages(mapping, 0);
}
+
+ /*
+ * Cleancache needs notification even if there are no pages or shadow
+ * entries.
+ */
+ truncate_inode_pages(mapping, 0);
}
EXPORT_SYMBOL(truncate_inode_pages_final);
diff --git a/net/ceph/auth.c b/net/ceph/auth.c
index c822b3a..8e79dca 100644
--- a/net/ceph/auth.c
+++ b/net/ceph/auth.c
@@ -314,14 +314,30 @@
}
EXPORT_SYMBOL(ceph_auth_update_authorizer);
+int ceph_auth_add_authorizer_challenge(struct ceph_auth_client *ac,
+ struct ceph_authorizer *a,
+ void *challenge_buf,
+ int challenge_buf_len)
+{
+ int ret = 0;
+
+ mutex_lock(&ac->mutex);
+ if (ac->ops && ac->ops->add_authorizer_challenge)
+ ret = ac->ops->add_authorizer_challenge(ac, a, challenge_buf,
+ challenge_buf_len);
+ mutex_unlock(&ac->mutex);
+ return ret;
+}
+EXPORT_SYMBOL(ceph_auth_add_authorizer_challenge);
+
int ceph_auth_verify_authorizer_reply(struct ceph_auth_client *ac,
- struct ceph_authorizer *a, size_t len)
+ struct ceph_authorizer *a)
{
int ret = 0;
mutex_lock(&ac->mutex);
if (ac->ops && ac->ops->verify_authorizer_reply)
- ret = ac->ops->verify_authorizer_reply(ac, a, len);
+ ret = ac->ops->verify_authorizer_reply(ac, a);
mutex_unlock(&ac->mutex);
return ret;
}
diff --git a/net/ceph/auth_x.c b/net/ceph/auth_x.c
index b216131..29e23b5 100644
--- a/net/ceph/auth_x.c
+++ b/net/ceph/auth_x.c
@@ -8,6 +8,7 @@
#include <linux/ceph/decode.h>
#include <linux/ceph/auth.h>
+#include <linux/ceph/ceph_features.h>
#include <linux/ceph/libceph.h>
#include <linux/ceph/messenger.h>
@@ -69,25 +70,40 @@
return sizeof(u32) + ciphertext_len;
}
+static int __ceph_x_decrypt(struct ceph_crypto_key *secret, void *p,
+ int ciphertext_len)
+{
+ struct ceph_x_encrypt_header *hdr = p;
+ int plaintext_len;
+ int ret;
+
+ ret = ceph_crypt(secret, false, p, ciphertext_len, ciphertext_len,
+ &plaintext_len);
+ if (ret)
+ return ret;
+
+ if (le64_to_cpu(hdr->magic) != CEPHX_ENC_MAGIC) {
+ pr_err("%s bad magic\n", __func__);
+ return -EINVAL;
+ }
+
+ return plaintext_len - sizeof(*hdr);
+}
+
static int ceph_x_decrypt(struct ceph_crypto_key *secret, void **p, void *end)
{
- struct ceph_x_encrypt_header *hdr = *p + sizeof(u32);
- int ciphertext_len, plaintext_len;
+ int ciphertext_len;
int ret;
ceph_decode_32_safe(p, end, ciphertext_len, e_inval);
ceph_decode_need(p, end, ciphertext_len, e_inval);
- ret = ceph_crypt(secret, false, *p, end - *p, ciphertext_len,
- &plaintext_len);
- if (ret)
+ ret = __ceph_x_decrypt(secret, *p, ciphertext_len);
+ if (ret < 0)
return ret;
- if (hdr->struct_v != 1 || le64_to_cpu(hdr->magic) != CEPHX_ENC_MAGIC)
- return -EPERM;
-
*p += ciphertext_len;
- return plaintext_len - sizeof(struct ceph_x_encrypt_header);
+ return ret;
e_inval:
return -EINVAL;
@@ -271,6 +287,51 @@
return -EINVAL;
}
+/*
+ * Encode and encrypt the second part (ceph_x_authorize_b) of the
+ * authorizer. The first part (ceph_x_authorize_a) should already be
+ * encoded.
+ */
+static int encrypt_authorizer(struct ceph_x_authorizer *au,
+ u64 *server_challenge)
+{
+ struct ceph_x_authorize_a *msg_a;
+ struct ceph_x_authorize_b *msg_b;
+ void *p, *end;
+ int ret;
+
+ msg_a = au->buf->vec.iov_base;
+ WARN_ON(msg_a->ticket_blob.secret_id != cpu_to_le64(au->secret_id));
+ p = (void *)(msg_a + 1) + le32_to_cpu(msg_a->ticket_blob.blob_len);
+ end = au->buf->vec.iov_base + au->buf->vec.iov_len;
+
+ msg_b = p + ceph_x_encrypt_offset();
+ msg_b->struct_v = 2;
+ msg_b->nonce = cpu_to_le64(au->nonce);
+ if (server_challenge) {
+ msg_b->have_challenge = 1;
+ msg_b->server_challenge_plus_one =
+ cpu_to_le64(*server_challenge + 1);
+ } else {
+ msg_b->have_challenge = 0;
+ msg_b->server_challenge_plus_one = 0;
+ }
+
+ ret = ceph_x_encrypt(&au->session_key, p, end - p, sizeof(*msg_b));
+ if (ret < 0)
+ return ret;
+
+ p += ret;
+ if (server_challenge) {
+ WARN_ON(p != end);
+ } else {
+ WARN_ON(p > end);
+ au->buf->vec.iov_len = p - au->buf->vec.iov_base;
+ }
+
+ return 0;
+}
+
static void ceph_x_authorizer_cleanup(struct ceph_x_authorizer *au)
{
ceph_crypto_key_destroy(&au->session_key);
@@ -287,7 +348,6 @@
int maxlen;
struct ceph_x_authorize_a *msg_a;
struct ceph_x_authorize_b *msg_b;
- void *p, *end;
int ret;
int ticket_blob_len =
(th->ticket_blob ? th->ticket_blob->vec.iov_len : 0);
@@ -331,21 +391,13 @@
dout(" th %p secret_id %lld %lld\n", th, th->secret_id,
le64_to_cpu(msg_a->ticket_blob.secret_id));
- p = msg_a + 1;
- p += ticket_blob_len;
- end = au->buf->vec.iov_base + au->buf->vec.iov_len;
-
- msg_b = p + ceph_x_encrypt_offset();
- msg_b->struct_v = 1;
get_random_bytes(&au->nonce, sizeof(au->nonce));
- msg_b->nonce = cpu_to_le64(au->nonce);
- ret = ceph_x_encrypt(&au->session_key, p, end - p, sizeof(*msg_b));
- if (ret < 0)
+ ret = encrypt_authorizer(au, NULL);
+ if (ret) {
+ pr_err("failed to encrypt authorizer: %d", ret);
goto out_au;
+ }
- p += ret;
- WARN_ON(p > end);
- au->buf->vec.iov_len = p - au->buf->vec.iov_base;
dout(" built authorizer nonce %llx len %d\n", au->nonce,
(int)au->buf->vec.iov_len);
return 0;
@@ -622,8 +674,56 @@
return 0;
}
+static int decrypt_authorize_challenge(struct ceph_x_authorizer *au,
+ void *challenge_buf,
+ int challenge_buf_len,
+ u64 *server_challenge)
+{
+ struct ceph_x_authorize_challenge *ch =
+ challenge_buf + sizeof(struct ceph_x_encrypt_header);
+ int ret;
+
+ /* no leading len */
+ ret = __ceph_x_decrypt(&au->session_key, challenge_buf,
+ challenge_buf_len);
+ if (ret < 0)
+ return ret;
+ if (ret < sizeof(*ch)) {
+ pr_err("bad size %d for ceph_x_authorize_challenge\n", ret);
+ return -EINVAL;
+ }
+
+ *server_challenge = le64_to_cpu(ch->server_challenge);
+ return 0;
+}
+
+static int ceph_x_add_authorizer_challenge(struct ceph_auth_client *ac,
+ struct ceph_authorizer *a,
+ void *challenge_buf,
+ int challenge_buf_len)
+{
+ struct ceph_x_authorizer *au = (void *)a;
+ u64 server_challenge;
+ int ret;
+
+ ret = decrypt_authorize_challenge(au, challenge_buf, challenge_buf_len,
+ &server_challenge);
+ if (ret) {
+ pr_err("failed to decrypt authorize challenge: %d", ret);
+ return ret;
+ }
+
+ ret = encrypt_authorizer(au, &server_challenge);
+ if (ret) {
+ pr_err("failed to encrypt authorizer w/ challenge: %d", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
static int ceph_x_verify_authorizer_reply(struct ceph_auth_client *ac,
- struct ceph_authorizer *a, size_t len)
+ struct ceph_authorizer *a)
{
struct ceph_x_authorizer *au = (void *)a;
void *p = au->enc_buf;
@@ -633,8 +733,10 @@
ret = ceph_x_decrypt(&au->session_key, &p, p + CEPHX_AU_ENC_BUF_LEN);
if (ret < 0)
return ret;
- if (ret != sizeof(*reply))
- return -EPERM;
+ if (ret < sizeof(*reply)) {
+ pr_err("bad size %d for ceph_x_authorize_reply\n", ret);
+ return -EINVAL;
+ }
if (au->nonce + 1 != le64_to_cpu(reply->nonce_plus_one))
ret = -EPERM;
@@ -700,26 +802,64 @@
__le64 *psig)
{
void *enc_buf = au->enc_buf;
- struct {
- __le32 len;
- __le32 header_crc;
- __le32 front_crc;
- __le32 middle_crc;
- __le32 data_crc;
- } __packed *sigblock = enc_buf + ceph_x_encrypt_offset();
int ret;
- sigblock->len = cpu_to_le32(4*sizeof(u32));
- sigblock->header_crc = msg->hdr.crc;
- sigblock->front_crc = msg->footer.front_crc;
- sigblock->middle_crc = msg->footer.middle_crc;
- sigblock->data_crc = msg->footer.data_crc;
- ret = ceph_x_encrypt(&au->session_key, enc_buf, CEPHX_AU_ENC_BUF_LEN,
- sizeof(*sigblock));
- if (ret < 0)
- return ret;
+ if (msg->con->peer_features & CEPH_FEATURE_CEPHX_V2) {
+ struct {
+ __le32 len;
+ __le32 header_crc;
+ __le32 front_crc;
+ __le32 middle_crc;
+ __le32 data_crc;
+ } __packed *sigblock = enc_buf + ceph_x_encrypt_offset();
- *psig = *(__le64 *)(enc_buf + sizeof(u32));
+ sigblock->len = cpu_to_le32(4*sizeof(u32));
+ sigblock->header_crc = msg->hdr.crc;
+ sigblock->front_crc = msg->footer.front_crc;
+ sigblock->middle_crc = msg->footer.middle_crc;
+ sigblock->data_crc = msg->footer.data_crc;
+
+ ret = ceph_x_encrypt(&au->session_key, enc_buf,
+ CEPHX_AU_ENC_BUF_LEN, sizeof(*sigblock));
+ if (ret < 0)
+ return ret;
+
+ *psig = *(__le64 *)(enc_buf + sizeof(u32));
+ } else {
+ struct {
+ __le32 header_crc;
+ __le32 front_crc;
+ __le32 front_len;
+ __le32 middle_crc;
+ __le32 middle_len;
+ __le32 data_crc;
+ __le32 data_len;
+ __le32 seq_lower_word;
+ } __packed *sigblock = enc_buf;
+ struct {
+ __le64 a, b, c, d;
+ } __packed *penc = enc_buf;
+ int ciphertext_len;
+
+ sigblock->header_crc = msg->hdr.crc;
+ sigblock->front_crc = msg->footer.front_crc;
+ sigblock->front_len = msg->hdr.front_len;
+ sigblock->middle_crc = msg->footer.middle_crc;
+ sigblock->middle_len = msg->hdr.middle_len;
+ sigblock->data_crc = msg->footer.data_crc;
+ sigblock->data_len = msg->hdr.data_len;
+ sigblock->seq_lower_word = *(__le32 *)&msg->hdr.seq;
+
+ /* no leading len, no ceph_x_encrypt_header */
+ ret = ceph_crypt(&au->session_key, true, enc_buf,
+ CEPHX_AU_ENC_BUF_LEN, sizeof(*sigblock),
+ &ciphertext_len);
+ if (ret)
+ return ret;
+
+ *psig = penc->a ^ penc->b ^ penc->c ^ penc->d;
+ }
+
return 0;
}
@@ -774,6 +914,7 @@
.handle_reply = ceph_x_handle_reply,
.create_authorizer = ceph_x_create_authorizer,
.update_authorizer = ceph_x_update_authorizer,
+ .add_authorizer_challenge = ceph_x_add_authorizer_challenge,
.verify_authorizer_reply = ceph_x_verify_authorizer_reply,
.invalidate_authorizer = ceph_x_invalidate_authorizer,
.reset = ceph_x_reset,
diff --git a/net/ceph/auth_x_protocol.h b/net/ceph/auth_x_protocol.h
index 671d305..a7cd203 100644
--- a/net/ceph/auth_x_protocol.h
+++ b/net/ceph/auth_x_protocol.h
@@ -69,6 +69,13 @@
struct ceph_x_authorize_b {
__u8 struct_v;
__le64 nonce;
+ __u8 have_challenge;
+ __le64 server_challenge_plus_one;
+} __attribute__ ((packed));
+
+struct ceph_x_authorize_challenge {
+ __u8 struct_v;
+ __le64 server_challenge;
} __attribute__ ((packed));
struct ceph_x_authorize_reply {
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 68acf94..5a8075d 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -1394,30 +1394,26 @@
* Connection negotiation.
*/
-static struct ceph_auth_handshake *get_connect_authorizer(struct ceph_connection *con,
- int *auth_proto)
+static int get_connect_authorizer(struct ceph_connection *con)
{
struct ceph_auth_handshake *auth;
+ int auth_proto;
if (!con->ops->get_authorizer) {
+ con->auth = NULL;
con->out_connect.authorizer_protocol = CEPH_AUTH_UNKNOWN;
con->out_connect.authorizer_len = 0;
- return NULL;
+ return 0;
}
- /* Can't hold the mutex while getting authorizer */
- mutex_unlock(&con->mutex);
- auth = con->ops->get_authorizer(con, auth_proto, con->auth_retry);
- mutex_lock(&con->mutex);
-
+ auth = con->ops->get_authorizer(con, &auth_proto, con->auth_retry);
if (IS_ERR(auth))
- return auth;
- if (con->state != CON_STATE_NEGOTIATING)
- return ERR_PTR(-EAGAIN);
+ return PTR_ERR(auth);
- con->auth_reply_buf = auth->authorizer_reply_buf;
- con->auth_reply_buf_len = auth->authorizer_reply_buf_len;
- return auth;
+ con->auth = auth;
+ con->out_connect.authorizer_protocol = cpu_to_le32(auth_proto);
+ con->out_connect.authorizer_len = cpu_to_le32(auth->authorizer_buf_len);
+ return 0;
}
/*
@@ -1433,12 +1429,22 @@
con_flag_set(con, CON_FLAG_WRITE_PENDING);
}
+static void __prepare_write_connect(struct ceph_connection *con)
+{
+ con_out_kvec_add(con, sizeof(con->out_connect), &con->out_connect);
+ if (con->auth)
+ con_out_kvec_add(con, con->auth->authorizer_buf_len,
+ con->auth->authorizer_buf);
+
+ con->out_more = 0;
+ con_flag_set(con, CON_FLAG_WRITE_PENDING);
+}
+
static int prepare_write_connect(struct ceph_connection *con)
{
unsigned int global_seq = get_global_seq(con->msgr, 0);
int proto;
- int auth_proto;
- struct ceph_auth_handshake *auth;
+ int ret;
switch (con->peer_name.type) {
case CEPH_ENTITY_TYPE_MON:
@@ -1465,24 +1471,11 @@
con->out_connect.protocol_version = cpu_to_le32(proto);
con->out_connect.flags = 0;
- auth_proto = CEPH_AUTH_UNKNOWN;
- auth = get_connect_authorizer(con, &auth_proto);
- if (IS_ERR(auth))
- return PTR_ERR(auth);
+ ret = get_connect_authorizer(con);
+ if (ret)
+ return ret;
- con->out_connect.authorizer_protocol = cpu_to_le32(auth_proto);
- con->out_connect.authorizer_len = auth ?
- cpu_to_le32(auth->authorizer_buf_len) : 0;
-
- con_out_kvec_add(con, sizeof (con->out_connect),
- &con->out_connect);
- if (auth && auth->authorizer_buf_len)
- con_out_kvec_add(con, auth->authorizer_buf_len,
- auth->authorizer_buf);
-
- con->out_more = 0;
- con_flag_set(con, CON_FLAG_WRITE_PENDING);
-
+ __prepare_write_connect(con);
return 0;
}
@@ -1743,11 +1736,21 @@
if (ret <= 0)
goto out;
- size = le32_to_cpu(con->in_reply.authorizer_len);
- end += size;
- ret = read_partial(con, end, size, con->auth_reply_buf);
- if (ret <= 0)
- goto out;
+ if (con->auth) {
+ size = le32_to_cpu(con->in_reply.authorizer_len);
+ if (size > con->auth->authorizer_reply_buf_len) {
+ pr_err("authorizer reply too big: %d > %zu\n", size,
+ con->auth->authorizer_reply_buf_len);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ end += size;
+ ret = read_partial(con, end, size,
+ con->auth->authorizer_reply_buf);
+ if (ret <= 0)
+ goto out;
+ }
dout("read_partial_connect %p tag %d, con_seq = %u, g_seq = %u\n",
con, (int)con->in_reply.tag,
@@ -1755,7 +1758,6 @@
le32_to_cpu(con->in_reply.global_seq));
out:
return ret;
-
}
/*
@@ -2039,13 +2041,28 @@
dout("process_connect on %p tag %d\n", con, (int)con->in_tag);
- if (con->auth_reply_buf) {
+ if (con->auth) {
/*
* Any connection that defines ->get_authorizer()
- * should also define ->verify_authorizer_reply().
+ * should also define ->add_authorizer_challenge() and
+ * ->verify_authorizer_reply().
+ *
* See get_connect_authorizer().
*/
- ret = con->ops->verify_authorizer_reply(con, 0);
+ if (con->in_reply.tag == CEPH_MSGR_TAG_CHALLENGE_AUTHORIZER) {
+ ret = con->ops->add_authorizer_challenge(
+ con, con->auth->authorizer_reply_buf,
+ le32_to_cpu(con->in_reply.authorizer_len));
+ if (ret < 0)
+ return ret;
+
+ con_out_kvec_reset(con);
+ __prepare_write_connect(con);
+ prepare_read_connect(con);
+ return 0;
+ }
+
+ ret = con->ops->verify_authorizer_reply(con);
if (ret < 0) {
con->error_msg = "bad authorize reply";
return ret;
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 0ffeb60..70ccb07 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -4478,14 +4478,24 @@
return auth;
}
-
-static int verify_authorizer_reply(struct ceph_connection *con, int len)
+static int add_authorizer_challenge(struct ceph_connection *con,
+ void *challenge_buf, int challenge_buf_len)
{
struct ceph_osd *o = con->private;
struct ceph_osd_client *osdc = o->o_osdc;
struct ceph_auth_client *ac = osdc->client->monc.auth;
- return ceph_auth_verify_authorizer_reply(ac, o->o_auth.authorizer, len);
+ return ceph_auth_add_authorizer_challenge(ac, o->o_auth.authorizer,
+ challenge_buf, challenge_buf_len);
+}
+
+static int verify_authorizer_reply(struct ceph_connection *con)
+{
+ struct ceph_osd *o = con->private;
+ struct ceph_osd_client *osdc = o->o_osdc;
+ struct ceph_auth_client *ac = osdc->client->monc.auth;
+
+ return ceph_auth_verify_authorizer_reply(ac, o->o_auth.authorizer);
}
static int invalidate_authorizer(struct ceph_connection *con)
@@ -4519,6 +4529,7 @@
.put = put_osd_con,
.dispatch = dispatch,
.get_authorizer = get_authorizer,
+ .add_authorizer_challenge = add_authorizer_challenge,
.verify_authorizer_reply = verify_authorizer_reply,
.invalidate_authorizer = invalidate_authorizer,
.alloc_msg = alloc_msg,
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index d8d99c2..e6ee6ac 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -261,8 +261,8 @@
} else {
if (strlen(ops->kind) > (IFNAMSIZ - 3))
goto failed;
- strlcpy(name, ops->kind, IFNAMSIZ);
- strncat(name, "%d", 2);
+ strcpy(name, ops->kind);
+ strcat(name, "%d");
}
ASSERT_RTNL();
diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
index c264644..d62affe 100644
--- a/net/tipc/subscr.c
+++ b/net/tipc/subscr.c
@@ -389,7 +389,7 @@
topsrv->tipc_conn_new = tipc_subscrb_connect_cb;
topsrv->tipc_conn_release = tipc_subscrb_release_cb;
- strncpy(topsrv->name, name, strlen(name) + 1);
+ strscpy(topsrv->name, name, sizeof(topsrv->name));
tn->topsrv = topsrv;
atomic_set(&tn->subscription_count, 0);
diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index fb3522f..d08b6fb 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -10,6 +10,8 @@
# are not supported by all versions of the compiler
# ==========================================================================
+KBUILD_CFLAGS += $(call cc-disable-warning, packed-not-aligned)
+
ifeq ("$(origin W)", "command line")
export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
endif
@@ -25,6 +27,7 @@
warning-1 += $(call cc-option, -Wmissing-include-dirs)
warning-1 += $(call cc-option, -Wunused-but-set-variable)
warning-1 += $(call cc-option, -Wunused-const-variable)
+warning-1 += $(call cc-option, -Wpacked-not-aligned)
warning-1 += $(call cc-disable-warning, missing-field-initializers)
warning-1 += $(call cc-disable-warning, sign-compare)
diff --git a/scripts/unifdef.c b/scripts/unifdef.c
index 7493c0e..db00e3e3 100644
--- a/scripts/unifdef.c
+++ b/scripts/unifdef.c
@@ -395,7 +395,7 @@
* When we have processed a group that starts off with a known-false
* #if/#elif sequence (which has therefore been deleted) followed by a
* #elif that we don't understand and therefore must keep, we edit the
- * latter into a #if to keep the nesting correct. We use strncpy() to
+ * latter into a #if to keep the nesting correct. We use memcpy() to
* overwrite the 4 byte token "elif" with "if " without a '\0' byte.
*
* When we find a true #elif in a group, the following block will
@@ -450,7 +450,7 @@
static void Itrue (void) { Ftrue(); ignoreon(); }
static void Ifalse(void) { Ffalse(); ignoreon(); }
/* modify this line */
-static void Mpass (void) { strncpy(keyword, "if ", 4); Pelif(); }
+static void Mpass (void) { memcpy(keyword, "if ", 4); Pelif(); }
static void Mtrue (void) { keywordedit("else"); state(IS_TRUE_MIDDLE); }
static void Melif (void) { keywordedit("endif"); state(IS_FALSE_TRAILER); }
static void Melse (void) { keywordedit("endif"); state(IS_FALSE_ELSE); }
diff --git a/sound/pci/trident/trident.c b/sound/pci/trident/trident.c
index cedf13b..2f18b1c 100644
--- a/sound/pci/trident/trident.c
+++ b/sound/pci/trident/trident.c
@@ -123,7 +123,7 @@
} else {
strcpy(card->shortname, "Trident ");
}
- strcat(card->shortname, card->driver);
+ strcat(card->shortname, str);
sprintf(card->longname, "%s PCI Audio at 0x%lx, irq %d",
card->shortname, trident->port, trident->irq);