/* NOTE: we really do want to use the kernel headers here */ #define __EXPORTED_HEADERS__ #include #include #include #include #include #include struct security_class_mapping { const char *name; const char *perms[sizeof(unsigned) * 8 + 1]; }; #include "classmap.h" #include "initial_sid_to_string.h" #define max(x, y) (((int)(x) > (int)(y)) ? x : y) const char *progname; static void usage(void) { printf("usage: %s flask.h av_permissions.h\n", progname); exit(1); } static char *stoupperx(const char *s) { char *s2 = strdup(s); char *p; if (!s2) { fprintf(stderr, "%s: out of memory\n", progname); exit(3); } for (p = s2; *p; p++) *p = toupper(*p); return s2; } int main(int argc, char *argv[]) { int i, j, k; int isids_len; FILE *fout; const char *needle = "SOCKET"; char *substr; progname = argv[0]; if (argc < 3) usage(); fout = fopen(argv[1], "w"); if (!fout) { fprintf(stderr, "Could not open %s for writing: %s\n", argv[1], strerror(errno)); exit(2); } for (i = 0; secclass_map[i].name; i++) { struct security_class_mapping *map = &secclass_map[i]; map->name = stoupperx(map->name); for (j = 0; map->perms[j]; j++) map->perms[j] = stoupperx(map->perms[j]); } isids_len = sizeof(initial_sid_to_string) / sizeof (char *); for (i = 1; i < isids_len; i++) initial_sid_to_string[i] = stoupperx(initial_sid_to_string[i]); fprintf(fout, "/* This file is automatically generated. Do not edit. */\n"); fprintf(fout, "#ifndef _SELINUX_FLASK_H_\n#define _SELINUX_FLASK_H_\n\n"); for (i = 0; secclass_map[i].name; i++) { struct security_class_mapping *map = &secclass_map[i]; fprintf(fout, "#define SECCLASS_%s", map->name); for (j = 0; j < max(1, 40 - strlen(map->name)); j++) fprintf(fout, " "); fprintf(fout, "%2d\n", i+1); } fprintf(fout, "\n"); for (i = 1; i < isids_len; i++) { const char *s = initial_sid_to_string[i]; fprintf(fout, "#define SECINITSID_%s", s); for (j = 0; j < max(1, 40 - strlen(s)); j++) fprintf(fout, " "); fprintf(fout, "%2d\n", i); } fprintf(fout, "\n#define SECINITSID_NUM %d\n", i-1); fprintf(fout, "\nstatic inline bool security_is_socket_class(u16 kern_tclass)\n"); fprintf(fout, "{\n"); fprintf(fout, "\tbool sock = false;\n\n"); fprintf(fout, "\tswitch (kern_tclass) {\n"); for (i = 0; secclass_map[i].name; i++) { struct security_class_mapping *map = &secclass_map[i]; substr = strstr(map->name, needle); if (substr && strcmp(substr, needle) == 0) fprintf(fout, "\tcase SECCLASS_%s:\n", map->name); } fprintf(fout, "\t\tsock = true;\n"); fprintf(fout, "\t\tbreak;\n"); fprintf(fout, "\tdefault:\n"); fprintf(fout, "\t\tbreak;\n"); fprintf(fout, "\t}\n\n"); fprintf(fout, "\treturn sock;\n"); fprintf(fout, "}\n"); fprintf(fout, "\n#endif\n"); fclose(fout); fout = fopen(argv[2], "w"); if (!fout) { fprintf(stderr, "Could not open %s for writing: %s\n", argv[2], strerror(errno)); exit(4); } fprintf(fout, "/* This file is automatically generated. Do not edit. */\n"); fprintf(fout, "#ifndef _SELINUX_AV_PERMISSIONS_H_\n#define _SELINUX_AV_PERMISSIONS_H_\n\n"); for (i = 0; secclass_map[i].name; i++) { struct security_class_mapping *map = &secclass_map[i]; for (j = 0; map->perms[j]; j++) { fprintf(fout, "#define %s__%s", map->name, map->perms[j]); for (k = 0; k < max(1, 40 - strlen(map->name) - strlen(map->perms[j])); k++) fprintf(fout, " "); fprintf(fout, "0x%08xUL\n", (1<
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authorSteven Rostedt (VMware) <rostedt@goodmis.org>2017-01-30 19:27:10 -0500
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2017-01-31 09:13:49 -0500
commit79c6f448c8b79c321e4a1f31f98194e4f6b6cae7 (patch)
tree370efda701f03cccf21e02bb1fdd3b852547d75c /include/net/phonet/phonet.h
parent0c744ea4f77d72b3dcebb7a8f2684633ec79be88 (diff)
tracing: Fix hwlat kthread migration
The hwlat tracer creates a kernel thread at start of the tracer. It is pinned to a single CPU and will move to the next CPU after each period of running. If the user modifies the migration thread's affinity, it will not change after that happens. The original code created the thread at the first instance it was called, but later was changed to destroy the thread after the tracer was finished, and would not be created until the next instance of the tracer was established. The code that initialized the affinity was only called on the initial instantiation of the tracer. After that, it was not initialized, and the previous affinity did not match the current newly created one, making it appear that the user modified the thread's affinity when it did not, and the thread failed to migrate again. Cc: stable@vger.kernel.org Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'include/net/phonet/phonet.h')