tools/perf/trace/beauty/seccomp.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #ifndef SECCOMP_SET_MODE_STRICT
   3 #define SECCOMP_SET_MODE_STRICT 0
   4 #endif
   5 #ifndef SECCOMP_SET_MODE_FILTER
   6 #define SECCOMP_SET_MODE_FILTER 1
   7 #endif
   8
   9 static size_t syscall_arg__scnprintf_seccomp_op(char *bf, size_t size, struct syscall_arg *arg)
  10 {
  11         int op = arg->val;
  12         size_t printed = 0;
  13
  14         switch (op) {
  15 #define P_SECCOMP_SET_MODE_OP(n) case SECCOMP_SET_MODE_##n: printed = scnprintf(bf, size, #n); break
  16         P_SECCOMP_SET_MODE_OP(STRICT);
  17         P_SECCOMP_SET_MODE_OP(FILTER);
  18 #undef P_SECCOMP_SET_MODE_OP
  19         default: printed = scnprintf(bf, size, "%#x", op);                        break;
  20         }
  21
  22         return printed;
  23 }
  24
  25 #define SCA_SECCOMP_OP  syscall_arg__scnprintf_seccomp_op
  26
  27 #ifndef SECCOMP_FILTER_FLAG_TSYNC
  28 #define SECCOMP_FILTER_FLAG_TSYNC 1
  29 #endif
  30
  31 static size_t syscall_arg__scnprintf_seccomp_flags(char *bf, size_t size,
  32                                                    struct syscall_arg *arg)
  33 {
  34         int printed = 0, flags = arg->val;
  35
  36 #define P_FLAG(n) \
  37         if (flags & SECCOMP_FILTER_FLAG_##n) { \
  38                 printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
  39                 flags &= ~SECCOMP_FILTER_FLAG_##n; \
  40         }
  41
  42         P_FLAG(TSYNC);
  43 #undef P_FLAG
  44
  45         if (flags)
  46                 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
  47
  48         return printed;
  49 }
  50
  51 #define SCA_SECCOMP_FLAGS syscall_arg__scnprintf_seccomp_flags