Файловый менеджер - Редактировать - /usr/src/linux-headers-5.4.0-200-generic/scripts/selinux/genheaders/genheaders.c
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// SPDX-License-Identifier: GPL-2.0 /* NOTE: we really do want to use the kernel headers here */ #define __EXPORTED_HEADERS__ #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> #include <errno.h> #include <ctype.h> struct security_class_mapping { const char *name; const char *perms[sizeof(unsigned) * 8 + 1]; }; #include "classmap.h" #include "initial_sid_to_string.h" 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; int isids_len; FILE *fout; 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_%-39s %2d\n", map->name, i+1); } fprintf(fout, "\n"); for (i = 1; i < isids_len; i++) { const char *s = initial_sid_to_string[i]; fprintf(fout, "#define SECINITSID_%-39s %2d\n", s, 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++) { static char s[] = "SOCKET"; struct security_class_mapping *map = &secclass_map[i]; int len = strlen(map->name), l = sizeof(s) - 1; if (len >= l && memcmp(map->name + len - l, s, l) == 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]; int len = strlen(map->name); for (j = 0; map->perms[j]; j++) { if (j >= 32) { fprintf(stderr, "Too many permissions to fit into an access vector at (%s, %s).\n", map->name, map->perms[j]); exit(5); } fprintf(fout, "#define %s__%-*s 0x%08xU\n", map->name, 39-len, map->perms[j], 1U<<j); } } fprintf(fout, "\n#endif\n"); fclose(fout); exit(0); }
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