UnknownSec Bypass 403

: /usr/src/linux-headers-4.4.0-206/scripts/selinux/mdp/ [ drwxr-xr-x ]
name : mdp.c /* * * mdp - make dummy policy * * When pointed at a kernel tree, builds a dummy policy for that kernel * with exactly one type with full rights to itself. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * Copyright (C) IBM Corporation, 2006 * * Authors: Serge E. Hallyn <serue@us.ibm.com> */ #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> static void usage(char *name) { printf("usage: %s [-m] policy_file context_file\n", name); exit(1); } /* Class/perm mapping support */ struct security_class_mapping { const char *name; const char *perms[sizeof(unsigned) * 8 + 1]; }; #include "classmap.h" #include "initial_sid_to_string.h" int main(int argc, char *argv[]) { int i, j, mls = 0; int initial_sid_to_string_len; char **arg, *polout, *ctxout; FILE *fout; if (argc < 3) usage(argv[0]); arg = argv+1; if (argc==4 && strcmp(argv[1], "-m") == 0) { mls = 1; arg++; } polout = *arg++; ctxout = *arg; fout = fopen(polout, "w"); if (!fout) { printf("Could not open %s for writing\n", polout); usage(argv[0]); } /* print out the classes */ for (i = 0; secclass_map[i].name; i++) fprintf(fout, "class %s\n", secclass_map[i].name); fprintf(fout, "\n"); initial_sid_to_string_len = sizeof(initial_sid_to_string) / sizeof (char *); /* print out the sids */ for (i = 1; i < initial_sid_to_string_len; i++) fprintf(fout, "sid %s\n", initial_sid_to_string[i]); fprintf(fout, "\n"); /* print out the class permissions */ for (i = 0; secclass_map[i].name; i++) { struct security_class_mapping *map = &secclass_map[i]; fprintf(fout, "class %s\n", map->name); fprintf(fout, "{\n"); for (j = 0; map->perms[j]; j++) fprintf(fout, "\t%s\n", map->perms[j]); fprintf(fout, "}\n\n"); } fprintf(fout, "\n"); /* NOW PRINT OUT MLS STUFF */ if (mls) { printf("MLS not yet implemented\n"); exit(1); } /* types, roles, and allows */ fprintf(fout, "type base_t;\n"); fprintf(fout, "role base_r;\n"); fprintf(fout, "role base_r types { base_t };\n"); for (i = 0; secclass_map[i].name; i++) fprintf(fout, "allow base_t base_t:%s *;\n", secclass_map[i].name); fprintf(fout, "user user_u roles { base_r };\n"); fprintf(fout, "\n"); /* default sids */ for (i = 1; i < initial_sid_to_string_len; i++) fprintf(fout, "sid %s user_u:base_r:base_t\n", initial_sid_to_string[i]); fprintf(fout, "\n"); fprintf(fout, "fs_use_xattr ext2 user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_xattr ext3 user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_xattr ext4 user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_xattr jfs user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_xattr xfs user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_xattr reiserfs user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_xattr jffs2 user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_xattr gfs2 user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_xattr lustre user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_task eventpollfs user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_task pipefs user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_task sockfs user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_trans mqueue user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_trans devpts user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_trans hugetlbfs user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_trans tmpfs user_u:base_r:base_t;\n"); fprintf(fout, "fs_use_trans shm user_u:base_r:base_t;\n"); fprintf(fout, "genfscon proc / user_u:base_r:base_t\n"); fclose(fout); fout = fopen(ctxout, "w"); if (!fout) { printf("Wrote policy, but cannot open %s for writing\n", ctxout); usage(argv[0]); } fprintf(fout, "/ user_u:base_r:base_t\n"); fprintf(fout, "/.* user_u:base_r:base_t\n"); fclose(fout); return 0; }