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1// SPDX-License-Identifier: GPL-2.0
2
3/* NOTE: we really do want to use the kernel headers here */
4#define __EXPORTED_HEADERS__
5
6#include <stdio.h>
7#include <stdlib.h>
8#include <unistd.h>
9#include <string.h>
10#include <errno.h>
11#include <ctype.h>
12
13struct security_class_mapping {
14 const char *name;
15 const char *perms[sizeof(unsigned) * 8 + 1];
16};
17
18#include "classmap.h"
19#include "initial_sid_to_string.h"
20
21const char *progname;
22
23static void usage(void)
24{
25 printf("usage: %s flask.h av_permissions.h\n", progname);
26 exit(1);
27}
28
29static char *stoupperx(const char *s)
30{
31 char *s2 = strdup(s);
32 char *p;
33
34 if (!s2) {
35 fprintf(stderr, "%s: out of memory\n", progname);
36 exit(3);
37 }
38
39 for (p = s2; *p; p++)
40 *p = toupper(*p);
41 return s2;
42}
43
44int main(int argc, char *argv[])
45{
46 int i, j;
47 int isids_len;
48 FILE *fout;
49
50 progname = argv[0];
51
52 if (argc < 3)
53 usage();
54
55 fout = fopen(argv[1], "w");
56 if (!fout) {
57 fprintf(stderr, "Could not open %s for writing: %s\n",
58 argv[1], strerror(errno));
59 exit(2);
60 }
61
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]);
67 }
68
69 isids_len = sizeof(initial_sid_to_string) / sizeof (char *);
70 for (i = 1; i < isids_len; i++)
71 initial_sid_to_string[i] = stoupperx(initial_sid_to_string[i]);
72
73 fprintf(fout, "/* This file is automatically generated. Do not edit. */\n");
74 fprintf(fout, "#ifndef _SELINUX_FLASK_H_\n#define _SELINUX_FLASK_H_\n\n");
75
76 for (i = 0; secclass_map[i].name; i++) {
77 struct security_class_mapping *map = &secclass_map[i];
78 fprintf(fout, "#define SECCLASS_%-39s %2d\n", map->name, i+1);
79 }
80
81 fprintf(fout, "\n");
82
83 for (i = 1; i < isids_len; i++) {
84 const char *s = initial_sid_to_string[i];
85 fprintf(fout, "#define SECINITSID_%-39s %2d\n", s, i);
86 }
87 fprintf(fout, "\n#define SECINITSID_NUM %d\n", i-1);
88 fprintf(fout, "\nstatic inline bool security_is_socket_class(u16 kern_tclass)\n");
89 fprintf(fout, "{\n");
90 fprintf(fout, "\tbool sock = false;\n\n");
91 fprintf(fout, "\tswitch (kern_tclass) {\n");
92 for (i = 0; secclass_map[i].name; i++) {
93 static char s[] = "SOCKET";
94 struct security_class_mapping *map = &secclass_map[i];
95 int len = strlen(map->name), l = sizeof(s) - 1;
96 if (len >= l && memcmp(map->name + len - l, s, l) == 0)
97 fprintf(fout, "\tcase SECCLASS_%s:\n", map->name);
98 }
99 fprintf(fout, "\t\tsock = true;\n");
100 fprintf(fout, "\t\tbreak;\n");
101 fprintf(fout, "\tdefault:\n");
102 fprintf(fout, "\t\tbreak;\n");
103 fprintf(fout, "\t}\n\n");
104 fprintf(fout, "\treturn sock;\n");
105 fprintf(fout, "}\n");
106
107 fprintf(fout, "\n#endif\n");
108 fclose(fout);
109
110 fout = fopen(argv[2], "w");
111 if (!fout) {
112 fprintf(stderr, "Could not open %s for writing: %s\n",
113 argv[2], strerror(errno));
114 exit(4);
115 }
116
117 fprintf(fout, "/* This file is automatically generated. Do not edit. */\n");
118 fprintf(fout, "#ifndef _SELINUX_AV_PERMISSIONS_H_\n#define _SELINUX_AV_PERMISSIONS_H_\n\n");
119
120 for (i = 0; secclass_map[i].name; i++) {
121 struct security_class_mapping *map = &secclass_map[i];
122 int len = strlen(map->name);
123 for (j = 0; map->perms[j]; j++) {
124 if (j >= 32) {
125 fprintf(stderr, "Too many permissions to fit into an access vector at (%s, %s).\n",
126 map->name, map->perms[j]);
127 exit(5);
128 }
129 fprintf(fout, "#define %s__%-*s 0x%08xU\n", map->name,
130 39-len, map->perms[j], 1U<<j);
131 }
132 }
133
134 fprintf(fout, "\n#endif\n");
135 fclose(fout);
136 exit(0);
137}
1#include <stdio.h>
2#include <stdlib.h>
3#include <unistd.h>
4#include <string.h>
5#include <errno.h>
6#include <ctype.h>
7
8struct security_class_mapping {
9 const char *name;
10 const char *perms[sizeof(unsigned) * 8 + 1];
11};
12
13#include "classmap.h"
14#include "initial_sid_to_string.h"
15
16#define max(x, y) (((int)(x) > (int)(y)) ? x : y)
17
18const char *progname;
19
20static void usage(void)
21{
22 printf("usage: %s flask.h av_permissions.h\n", progname);
23 exit(1);
24}
25
26static char *stoupperx(const char *s)
27{
28 char *s2 = strdup(s);
29 char *p;
30
31 if (!s2) {
32 fprintf(stderr, "%s: out of memory\n", progname);
33 exit(3);
34 }
35
36 for (p = s2; *p; p++)
37 *p = toupper(*p);
38 return s2;
39}
40
41int main(int argc, char *argv[])
42{
43 int i, j, k;
44 int isids_len;
45 FILE *fout;
46 const char *needle = "SOCKET";
47 char *substr;
48
49 progname = argv[0];
50
51 if (argc < 3)
52 usage();
53
54 fout = fopen(argv[1], "w");
55 if (!fout) {
56 fprintf(stderr, "Could not open %s for writing: %s\n",
57 argv[1], strerror(errno));
58 exit(2);
59 }
60
61 for (i = 0; secclass_map[i].name; i++) {
62 struct security_class_mapping *map = &secclass_map[i];
63 map->name = stoupperx(map->name);
64 for (j = 0; map->perms[j]; j++)
65 map->perms[j] = stoupperx(map->perms[j]);
66 }
67
68 isids_len = sizeof(initial_sid_to_string) / sizeof (char *);
69 for (i = 1; i < isids_len; i++)
70 initial_sid_to_string[i] = stoupperx(initial_sid_to_string[i]);
71
72 fprintf(fout, "/* This file is automatically generated. Do not edit. */\n");
73 fprintf(fout, "#ifndef _SELINUX_FLASK_H_\n#define _SELINUX_FLASK_H_\n\n");
74
75 for (i = 0; secclass_map[i].name; i++) {
76 struct security_class_mapping *map = &secclass_map[i];
77 fprintf(fout, "#define SECCLASS_%s", map->name);
78 for (j = 0; j < max(1, 40 - strlen(map->name)); j++)
79 fprintf(fout, " ");
80 fprintf(fout, "%2d\n", i+1);
81 }
82
83 fprintf(fout, "\n");
84
85 for (i = 1; i < isids_len; i++) {
86 const char *s = initial_sid_to_string[i];
87 fprintf(fout, "#define SECINITSID_%s", s);
88 for (j = 0; j < max(1, 40 - strlen(s)); j++)
89 fprintf(fout, " ");
90 fprintf(fout, "%2d\n", i);
91 }
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");
94 fprintf(fout, "{\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 struct security_class_mapping *map = &secclass_map[i];
99 substr = strstr(map->name, needle);
100 if (substr && strcmp(substr, needle) == 0)
101 fprintf(fout, "\tcase SECCLASS_%s:\n", map->name);
102 }
103 fprintf(fout, "\t\tsock = true;\n");
104 fprintf(fout, "\t\tbreak;\n");
105 fprintf(fout, "\tdefault:\n");
106 fprintf(fout, "\t\tbreak;\n");
107 fprintf(fout, "\t}\n\n");
108 fprintf(fout, "\treturn sock;\n");
109 fprintf(fout, "}\n");
110
111 fprintf(fout, "\n#endif\n");
112 fclose(fout);
113
114 fout = fopen(argv[2], "w");
115 if (!fout) {
116 fprintf(stderr, "Could not open %s for writing: %s\n",
117 argv[2], strerror(errno));
118 exit(4);
119 }
120
121 fprintf(fout, "/* This file is automatically generated. Do not edit. */\n");
122 fprintf(fout, "#ifndef _SELINUX_AV_PERMISSIONS_H_\n#define _SELINUX_AV_PERMISSIONS_H_\n\n");
123
124 for (i = 0; secclass_map[i].name; i++) {
125 struct security_class_mapping *map = &secclass_map[i];
126 for (j = 0; map->perms[j]; j++) {
127 fprintf(fout, "#define %s__%s", map->name,
128 map->perms[j]);
129 for (k = 0; k < max(1, 40 - strlen(map->name) - strlen(map->perms[j])); k++)
130 fprintf(fout, " ");
131 fprintf(fout, "0x%08xUL\n", (1<<j));
132 }
133 }
134
135 fprintf(fout, "\n#endif\n");
136 fclose(fout);
137 exit(0);
138}