1 // SPDX-License-Identifier: GPL-2.0
3 /* NOTE: we really do want to use the kernel headers here */
4 #define __EXPORTED_HEADERS__
13 struct security_class_mapping {
15 const char *perms[sizeof(unsigned) * 8 + 1];
19 #include "initial_sid_to_string.h"
23 static void usage(void)
25 printf("usage: %s flask.h av_permissions.h\n", progname);
29 static char *stoupperx(const char *s)
35 fprintf(stderr, "%s: out of memory\n", progname);
44 int main(int argc, char *argv[])
55 fout = fopen(argv[1], "w");
57 fprintf(stderr, "Could not open %s for writing: %s\n",
58 argv[1], strerror(errno));
62 for (i = 0; secclass_map[i].name; i++) {
63 struct security_class_mapping *map = &secclass_map[i];
64 map->name = stoupperx(map->name);
65 for (j = 0; map->perms[j]; j++)
66 map->perms[j] = stoupperx(map->perms[j]);
69 isids_len = sizeof(initial_sid_to_string) / sizeof (char *);
70 for (i = 1; i < isids_len; i++) {
71 const char *s = initial_sid_to_string[i];
74 initial_sid_to_string[i] = stoupperx(s);
77 fprintf(fout, "/* This file is automatically generated. Do not edit. */\n");
78 fprintf(fout, "#ifndef _SELINUX_FLASK_H_\n#define _SELINUX_FLASK_H_\n\n");
80 for (i = 0; secclass_map[i].name; i++) {
81 struct security_class_mapping *map = &secclass_map[i];
82 fprintf(fout, "#define SECCLASS_%-39s %2d\n", map->name, i+1);
87 for (i = 1; i < isids_len; i++) {
88 const char *s = initial_sid_to_string[i];
90 fprintf(fout, "#define SECINITSID_%-39s %2d\n", s, i);
92 fprintf(fout, "\n#define SECINITSID_NUM %d\n", i-1);
93 fprintf(fout, "\nstatic inline bool security_is_socket_class(u16 kern_tclass)\n");
95 fprintf(fout, "\tbool sock = false;\n\n");
96 fprintf(fout, "\tswitch (kern_tclass) {\n");
97 for (i = 0; secclass_map[i].name; i++) {
98 static char s[] = "SOCKET";
99 struct security_class_mapping *map = &secclass_map[i];
100 int len = strlen(map->name), l = sizeof(s) - 1;
101 if (len >= l && memcmp(map->name + len - l, s, l) == 0)
102 fprintf(fout, "\tcase SECCLASS_%s:\n", map->name);
104 fprintf(fout, "\t\tsock = true;\n");
105 fprintf(fout, "\t\tbreak;\n");
106 fprintf(fout, "\tdefault:\n");
107 fprintf(fout, "\t\tbreak;\n");
108 fprintf(fout, "\t}\n\n");
109 fprintf(fout, "\treturn sock;\n");
110 fprintf(fout, "}\n");
112 fprintf(fout, "\n#endif\n");
115 fout = fopen(argv[2], "w");
117 fprintf(stderr, "Could not open %s for writing: %s\n",
118 argv[2], strerror(errno));
122 fprintf(fout, "/* This file is automatically generated. Do not edit. */\n");
123 fprintf(fout, "#ifndef _SELINUX_AV_PERMISSIONS_H_\n#define _SELINUX_AV_PERMISSIONS_H_\n\n");
125 for (i = 0; secclass_map[i].name; i++) {
126 struct security_class_mapping *map = &secclass_map[i];
127 int len = strlen(map->name);
128 for (j = 0; map->perms[j]; j++) {
130 fprintf(stderr, "Too many permissions to fit into an access vector at (%s, %s).\n",
131 map->name, map->perms[j]);
134 fprintf(fout, "#define %s__%-*s 0x%08xU\n", map->name,
135 39-len, map->perms[j], 1U<<j);
139 fprintf(fout, "\n#endif\n");