| #include "defs.h" |
| |
| #include <sys/prctl.h> |
| |
| #include "xlat/prctl_options.h" |
| #include "xlat/pr_cap_ambient.h" |
| #include "xlat/pr_mce_kill.h" |
| #include "xlat/pr_mce_kill_policy.h" |
| #include "xlat/pr_set_mm.h" |
| #include "xlat/pr_tsc.h" |
| #include "xlat/pr_unalign_flags.h" |
| |
| #ifndef TASK_COMM_LEN |
| # define TASK_COMM_LEN 16 |
| #endif |
| |
| #ifdef HAVE_LINUX_SECCOMP_H |
| # include <linux/seccomp.h> |
| #endif |
| #include "xlat/seccomp_mode.h" |
| |
| #ifdef HAVE_LINUX_SECUREBITS_H |
| # include <linux/securebits.h> |
| #endif |
| #include "xlat/secbits.h" |
| |
| /* these constants are the same as in <linux/capability.h> */ |
| enum { |
| #include "caps0.h" |
| #include "caps1.h" |
| }; |
| |
| #include "xlat/cap.h" |
| |
| static void |
| print_prctl_args(struct tcb *tcp, const unsigned int first) |
| { |
| unsigned int i; |
| |
| for (i = first; i < tcp->s_ent->nargs; ++i) |
| tprintf(", %#lx", tcp->u_arg[i]); |
| } |
| |
| SYS_FUNC(prctl) |
| { |
| unsigned int i; |
| |
| if (entering(tcp)) |
| printxval(prctl_options, tcp->u_arg[0], "PR_???"); |
| |
| switch (tcp->u_arg[0]) { |
| case PR_GET_DUMPABLE: |
| case PR_GET_KEEPCAPS: |
| case PR_GET_SECCOMP: |
| case PR_GET_TIMERSLACK: |
| case PR_GET_TIMING: |
| return RVAL_DECODED; |
| |
| case PR_GET_CHILD_SUBREAPER: |
| case PR_GET_ENDIAN: |
| case PR_GET_FPEMU: |
| case PR_GET_FPEXC: |
| if (entering(tcp)) |
| tprints(", "); |
| else |
| printnum_int(tcp, tcp->u_arg[1], "%u"); |
| break; |
| |
| case PR_GET_NAME: |
| if (entering(tcp)) |
| tprints(", "); |
| else { |
| if (syserror(tcp)) |
| printaddr(tcp->u_arg[1]); |
| else |
| printstr(tcp, tcp->u_arg[1], -1); |
| } |
| break; |
| |
| case PR_GET_PDEATHSIG: |
| if (entering(tcp)) |
| tprints(", "); |
| else if (!umove_or_printaddr(tcp, tcp->u_arg[1], &i)) { |
| tprints("["); |
| tprints(signame(i)); |
| tprints("]"); |
| } |
| break; |
| |
| case PR_GET_SECUREBITS: |
| if (entering(tcp)) |
| break; |
| if (syserror(tcp) || tcp->u_rval == 0) |
| return 0; |
| tcp->auxstr = sprintflags("", secbits, tcp->u_rval); |
| return RVAL_STR; |
| |
| case PR_GET_TID_ADDRESS: |
| if (entering(tcp)) |
| tprints(", "); |
| else |
| printnum_ptr(tcp, tcp->u_arg[1]); |
| break; |
| |
| case PR_GET_TSC: |
| if (entering(tcp)) |
| tprints(", "); |
| else if (!umove_or_printaddr(tcp, tcp->u_arg[1], &i)) { |
| tprints("["); |
| printxval(pr_tsc, i, "PR_TSC_???"); |
| tprints("]"); |
| } |
| break; |
| |
| case PR_GET_UNALIGN: |
| if (entering(tcp)) |
| tprints(", "); |
| else if (!umove_or_printaddr(tcp, tcp->u_arg[1], &i)) { |
| tprints("["); |
| printflags(pr_unalign_flags, i, "PR_UNALIGN_???"); |
| tprints("]"); |
| } |
| break; |
| |
| /* PR_TASK_PERF_EVENTS_* take no arguments. */ |
| case PR_TASK_PERF_EVENTS_DISABLE: |
| case PR_TASK_PERF_EVENTS_ENABLE: |
| return RVAL_DECODED; |
| |
| case PR_SET_CHILD_SUBREAPER: |
| case PR_SET_DUMPABLE: |
| case PR_SET_ENDIAN: |
| case PR_SET_FPEMU: |
| case PR_SET_FPEXC: |
| case PR_SET_KEEPCAPS: |
| case PR_SET_TIMING: |
| tprintf(", %lu", tcp->u_arg[1]); |
| return RVAL_DECODED; |
| |
| case PR_CAPBSET_DROP: |
| case PR_CAPBSET_READ: |
| tprints(", "); |
| printxval(cap, tcp->u_arg[1], "CAP_???"); |
| return RVAL_DECODED; |
| |
| case PR_CAP_AMBIENT: |
| tprints(", "); |
| printxval(pr_cap_ambient, tcp->u_arg[1], "PR_CAP_AMBIENT_???"); |
| switch (tcp->u_arg[1]) { |
| case PR_CAP_AMBIENT_RAISE: |
| case PR_CAP_AMBIENT_LOWER: |
| case PR_CAP_AMBIENT_IS_SET: |
| tprints(", "); |
| printxval(cap, tcp->u_arg[2], "CAP_???"); |
| print_prctl_args(tcp, 3); |
| break; |
| default: |
| print_prctl_args(tcp, 2); |
| break; |
| } |
| return RVAL_DECODED; |
| |
| case PR_MCE_KILL: |
| tprints(", "); |
| printxval(pr_mce_kill, tcp->u_arg[1], "PR_MCE_KILL_???"); |
| tprints(", "); |
| if (PR_MCE_KILL_SET == tcp->u_arg[1]) |
| printxval(pr_mce_kill_policy, tcp->u_arg[2], |
| "PR_MCE_KILL_???"); |
| else |
| tprintf("%#lx", tcp->u_arg[2]); |
| print_prctl_args(tcp, 3); |
| return RVAL_DECODED; |
| |
| case PR_SET_NAME: |
| tprints(", "); |
| printstr(tcp, tcp->u_arg[1], TASK_COMM_LEN); |
| return RVAL_DECODED; |
| |
| #ifdef __ANDROID__ |
| # ifndef PR_SET_VMA |
| # define PR_SET_VMA 0x53564d41 |
| # endif |
| # ifndef PR_SET_VMA_ANON_NAME |
| # define PR_SET_VMA_ANON_NAME 0 |
| # endif |
| case PR_SET_VMA: |
| if (tcp->u_arg[1] == PR_SET_VMA_ANON_NAME) { |
| tprintf(", %lu", tcp->u_arg[1]); |
| tprintf(", %#lx", tcp->u_arg[2]); |
| tprintf(", %lu, ", tcp->u_arg[3]); |
| printstr(tcp, tcp->u_arg[4], -1); |
| } else { |
| /* There are no other sub-options now, but there |
| * might be in future... */ |
| print_prctl_args(tcp, 1); |
| } |
| return RVAL_DECODED; |
| #endif |
| |
| case PR_SET_MM: |
| tprints(", "); |
| printxval(pr_set_mm, tcp->u_arg[1], "PR_SET_MM_???"); |
| print_prctl_args(tcp, 2); |
| return RVAL_DECODED; |
| |
| case PR_SET_PDEATHSIG: |
| tprints(", "); |
| if ((unsigned long) tcp->u_arg[1] > 128) |
| tprintf("%lu", tcp->u_arg[1]); |
| else |
| tprints(signame(tcp->u_arg[1])); |
| return RVAL_DECODED; |
| |
| case PR_SET_PTRACER: |
| tprints(", "); |
| if (tcp->u_arg[1] == -1) |
| tprints("PR_SET_PTRACER_ANY"); |
| else |
| tprintf("%lu", tcp->u_arg[1]); |
| return RVAL_DECODED; |
| |
| case PR_SET_SECCOMP: |
| tprints(", "); |
| printxval(seccomp_mode, tcp->u_arg[1], |
| "SECCOMP_MODE_???"); |
| if (SECCOMP_MODE_STRICT == tcp->u_arg[1]) |
| return RVAL_DECODED; |
| if (SECCOMP_MODE_FILTER == tcp->u_arg[1]) { |
| tprints(", "); |
| print_seccomp_filter(tcp, tcp->u_arg[2]); |
| return RVAL_DECODED; |
| } |
| print_prctl_args(tcp, 2); |
| return RVAL_DECODED; |
| |
| case PR_SET_SECUREBITS: |
| tprints(", "); |
| printflags(secbits, tcp->u_arg[1], "SECBIT_???"); |
| return RVAL_DECODED; |
| |
| case PR_SET_TIMERSLACK: |
| tprintf(", %ld", tcp->u_arg[1]); |
| return RVAL_DECODED; |
| |
| case PR_SET_TSC: |
| tprints(", "); |
| printxval(pr_tsc, tcp->u_arg[1], "PR_TSC_???"); |
| return RVAL_DECODED; |
| |
| case PR_SET_UNALIGN: |
| tprints(", "); |
| printflags(pr_unalign_flags, tcp->u_arg[1], "PR_UNALIGN_???"); |
| return RVAL_DECODED; |
| |
| case PR_SET_NO_NEW_PRIVS: |
| case PR_SET_THP_DISABLE: |
| tprintf(", %lu", tcp->u_arg[1]); |
| print_prctl_args(tcp, 2); |
| return RVAL_DECODED; |
| |
| case PR_MCE_KILL_GET: |
| if (entering(tcp)) { |
| print_prctl_args(tcp, 1); |
| return 0; |
| } |
| if (syserror(tcp)) |
| return 0; |
| tcp->auxstr = xlookup(pr_mce_kill_policy, tcp->u_rval); |
| return tcp->auxstr ? RVAL_STR : RVAL_UDECIMAL; |
| |
| case PR_GET_NO_NEW_PRIVS: |
| case PR_GET_THP_DISABLE: |
| case PR_MPX_DISABLE_MANAGEMENT: |
| case PR_MPX_ENABLE_MANAGEMENT: |
| default: |
| print_prctl_args(tcp, 1); |
| return RVAL_DECODED; |
| } |
| return 0; |
| } |
| |
| #if defined X86_64 || defined X32 |
| # include <asm/prctl.h> |
| # include "xlat/archvals.h" |
| |
| SYS_FUNC(arch_prctl) |
| { |
| if (entering(tcp)) |
| printxval(archvals, tcp->u_arg[0], "ARCH_???"); |
| |
| switch (tcp->u_arg[0]) { |
| case ARCH_GET_GS: |
| case ARCH_GET_FS: |
| if (entering(tcp)) |
| tprints(", "); |
| else |
| printnum_ptr(tcp, tcp->u_arg[1]); |
| return 0; |
| } |
| |
| tprintf(", %#lx", tcp->u_arg[1]); |
| return RVAL_DECODED; |
| } |
| #endif /* X86_64 || X32 */ |