Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/linux/personality.h b/include/linux/personality.h
new file mode 100644
index 0000000..80d780e
--- /dev/null
+++ b/include/linux/personality.h
@@ -0,0 +1,114 @@
+#ifndef _LINUX_PERSONALITY_H
+#define _LINUX_PERSONALITY_H
+
+/*
+ * Handling of different ABIs (personalities).
+ */
+
+struct exec_domain;
+struct pt_regs;
+
+extern int register_exec_domain(struct exec_domain *);
+extern int unregister_exec_domain(struct exec_domain *);
+extern int __set_personality(unsigned long);
+
+/*
+ * Flags for bug emulation.
+ *
+ * These occupy the top three bytes.
+ */
+enum {
+ ADDR_NO_RANDOMIZE = 0x0040000, /* disable randomization of VA space */
+ FDPIC_FUNCPTRS = 0x0080000, /* userspace function ptrs point to descriptors
+ * (signal handling)
+ */
+ MMAP_PAGE_ZERO = 0x0100000,
+ ADDR_COMPAT_LAYOUT = 0x0200000,
+ READ_IMPLIES_EXEC = 0x0400000,
+ ADDR_LIMIT_32BIT = 0x0800000,
+ SHORT_INODE = 0x1000000,
+ WHOLE_SECONDS = 0x2000000,
+ STICKY_TIMEOUTS = 0x4000000,
+ ADDR_LIMIT_3GB = 0x8000000,
+};
+
+/*
+ * Security-relevant compatibility flags that must be
+ * cleared upon setuid or setgid exec:
+ */
+#define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC|ADDR_NO_RANDOMIZE)
+
+/*
+ * Personality types.
+ *
+ * These go in the low byte. Avoid using the top bit, it will
+ * conflict with error returns.
+ */
+enum {
+ PER_LINUX = 0x0000,
+ PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT,
+ PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS,
+ PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
+ PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
+ PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS |
+ WHOLE_SECONDS | SHORT_INODE,
+ PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,
+ PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE,
+ PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS,
+ PER_BSD = 0x0006,
+ PER_SUNOS = 0x0006 | STICKY_TIMEOUTS,
+ PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE,
+ PER_LINUX32 = 0x0008,
+ PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB,
+ PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */
+ PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */
+ PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */
+ PER_RISCOS = 0x000c,
+ PER_SOLARIS = 0x000d | STICKY_TIMEOUTS,
+ PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
+ PER_OSF4 = 0x000f, /* OSF/1 v4 */
+ PER_HPUX = 0x0010,
+ PER_MASK = 0x00ff,
+};
+
+
+/*
+ * Description of an execution domain.
+ *
+ * The first two members are refernced from assembly source
+ * and should stay where they are unless explicitly needed.
+ */
+typedef void (*handler_t)(int, struct pt_regs *);
+
+struct exec_domain {
+ const char *name; /* name of the execdomain */
+ handler_t handler; /* handler for syscalls */
+ unsigned char pers_low; /* lowest personality */
+ unsigned char pers_high; /* highest personality */
+ unsigned long *signal_map; /* signal mapping */
+ unsigned long *signal_invmap; /* reverse signal mapping */
+ struct map_segment *err_map; /* error mapping */
+ struct map_segment *socktype_map; /* socket type mapping */
+ struct map_segment *sockopt_map; /* socket option mapping */
+ struct map_segment *af_map; /* address family mapping */
+ struct module *module; /* module context of the ed. */
+ struct exec_domain *next; /* linked list (internal) */
+};
+
+/*
+ * Return the base personality without flags.
+ */
+#define personality(pers) (pers & PER_MASK)
+
+/*
+ * Personality of the currently running process.
+ */
+#define get_personality (current->personality)
+
+/*
+ * Change personality of the currently running process.
+ */
+#define set_personality(pers) \
+ ((current->personality == pers) ? 0 : __set_personality(pers))
+
+#endif /* _LINUX_PERSONALITY_H */