tools/perf/trace/beauty/seccomp.c

   1 // SPDX-License-Identifier: LGPL-2.1
   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         bool show_prefix = arg->show_string_prefix;
  12         const char *prefix = "SECCOMP_SET_MODE_";
  13         int op = arg->val;
  14         size_t printed = 0;
  15
  16         switch (op) {
  17 #define P_SECCOMP_SET_MODE_OP(n) case SECCOMP_SET_MODE_##n: printed = scnprintf(bf, size, "%s%s", show_prefix ? prefix : "", #n); break
  18         P_SECCOMP_SET_MODE_OP(STRICT);
  19         P_SECCOMP_SET_MODE_OP(FILTER);
  20 #undef P_SECCOMP_SET_MODE_OP
  21         default: printed = scnprintf(bf, size, "%#x", op);                        break;
  22         }
  23
  24         return printed;
  25 }
  26
  27 #define SCA_SECCOMP_OP  syscall_arg__scnprintf_seccomp_op
  28
  29 #ifndef SECCOMP_FILTER_FLAG_TSYNC
  30 #define SECCOMP_FILTER_FLAG_TSYNC 1
  31 #endif
  32
  33 static size_t syscall_arg__scnprintf_seccomp_flags(char *bf, size_t size,
  34                                                    struct syscall_arg *arg)
  35 {
  36         bool show_prefix = arg->show_string_prefix;
  37         const char *prefix = "SECCOMP_FILTER_FLAG_";
  38         int printed = 0, flags = arg->val;
  39
  40 #define P_FLAG(n) \
  41         if (flags & SECCOMP_FILTER_FLAG_##n) { \
  42                 printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
  43                 flags &= ~SECCOMP_FILTER_FLAG_##n; \
  44         }
  45
  46         P_FLAG(TSYNC);
  47 #undef P_FLAG
  48
  49         if (flags)
  50                 printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
  51
  52         return printed;
  53 }
  54
  55 #define SCA_SECCOMP_FLAGS syscall_arg__scnprintf_seccomp_flags