diff options
Diffstat (limited to 'scripts/selinux/genheaders')
-rw-r--r-- | scripts/selinux/genheaders/.gitignore | 1 | ||||
-rw-r--r-- | scripts/selinux/genheaders/Makefile | 5 | ||||
-rw-r--r-- | scripts/selinux/genheaders/genheaders.c | 118 |
3 files changed, 124 insertions, 0 deletions
diff --git a/scripts/selinux/genheaders/.gitignore b/scripts/selinux/genheaders/.gitignore new file mode 100644 index 0000000..4c0b646 --- /dev/null +++ b/scripts/selinux/genheaders/.gitignore @@ -0,0 +1 @@ +genheaders diff --git a/scripts/selinux/genheaders/Makefile b/scripts/selinux/genheaders/Makefile new file mode 100644 index 0000000..417b165 --- /dev/null +++ b/scripts/selinux/genheaders/Makefile @@ -0,0 +1,5 @@ +hostprogs-y := genheaders +HOST_EXTRACFLAGS += -Isecurity/selinux/include + +always := $(hostprogs-y) +clean-files := $(hostprogs-y) diff --git a/scripts/selinux/genheaders/genheaders.c b/scripts/selinux/genheaders/genheaders.c new file mode 100644 index 0000000..2462696 --- /dev/null +++ b/scripts/selinux/genheaders/genheaders.c @@ -0,0 +1,118 @@ +#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" + +#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; + + 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++) { + 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, "\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<<j)); + } + } + + fprintf(fout, "\n#endif\n"); + fclose(fout); + exit(0); +} |