15 #include "../src/regex.h"
17 static const char *policy_file;
20 static int validate_context(char **ctxp)  in validate_context()
22 	char *ctx = *ctxp;  in validate_context()
25 		ctx_err = -1;  in validate_context()
32 static int process_file(struct selabel_handle *rec, const char *filename)  in process_file()
36 	char *line_buf = NULL;  in process_file()
39 	const char *prefix = NULL;  in process_file()
45 		return -1;  in process_file()
53 			/* With -p option need to check and fail if ctx err as  in process_file()
58 			rc = -1;  in process_file()
71  * u32 - magic number
72  * u32 - version
73  * u32 - length of pcre version EXCLUDING nul
74  * char - pcre version string EXCLUDING nul
75  * u32 - number of stems
77  *	u32  - length of stem EXCLUDING nul
78  *	char - stem char array INCLUDING nul
79  * u32 - number of regexs
81  *	u32  - length of upcoming context INCLUDING nul
82  *	char - char array of the raw context
83  *	u32  - length of the upcoming regex_str
84  *	char - char array of the original regex string including the stem.
85  *	u32  - mode bits for >= SELINUX_COMPILED_FCONTEXT_MODE
87  *	s32  - stemid associated with the regex
88  *	u32  - spec has meta characters
89  *	u32  - The specs prefix_len if >= SELINUX_COMPILED_FCONTEXT_PREFIX_LEN
90  *	u32  - data length of the pcre regex
91  *	char - a buffer holding the raw pcre regex info
92  *	u32  - data length of the pcre regex study daya
93  *	char - a buffer holding the raw pcre regex study data
98 	struct spec *specs = data->spec_arr;  in write_binary_file()
105 	const char *reg_version;  in write_binary_file()
106 	const char *reg_arch;  in write_binary_file()
125 	/* write version of the regex back-end */  in write_binary_file()
133 	len = fwrite(reg_version, sizeof(char), section_len, bin_file);  in write_binary_file()
137 	/* write regex arch string */  in write_binary_file()
145 	len = fwrite(reg_arch, sizeof(char), section_len, bin_file);  in write_binary_file()
150 	section_len = data->num_stems;  in write_binary_file()
156 		char *stem = data->stem_arr[i].buf;  in write_binary_file()
157 		uint32_t stem_len = data->stem_arr[i].len;  in write_binary_file()
166 		len = fwrite(stem, sizeof(char), stem_len, bin_file);  in write_binary_file()
172 	section_len = data->nspec;  in write_binary_file()
178 		char *context = specs[i].lr.ctx_raw;  in write_binary_file()
179 		char *regex_str = specs[i].regex_str;  in write_binary_file()
183 		struct regex_data *re = specs[i].regex;  in write_binary_file()
193 		len = fwrite(context, sizeof(char), to_write, bin_file);  in write_binary_file()
197 		/* length of the original regex string (including nul) */  in write_binary_file()
203 		/* original regex string */  in write_binary_file()
204 		len = fwrite(regex_str, sizeof(char), to_write, bin_file);  in write_binary_file()
214 		/* stem for this regex (could be -1) */  in write_binary_file()
231 		/* Write regex related data */  in write_binary_file()
242 	rc = -1;  in write_binary_file()
248 	struct spec *specs = data->spec_arr;  in free_specs()
249 	unsigned int num_entries = data->nspec;  in free_specs()
257 		regex_data_free(specs[i].regex);  in free_specs()
261 	num_entries = data->num_stems;  in free_specs()
263 		free(data->stem_arr[i].buf);  in free_specs()
264 	free(data->stem_arr);  in free_specs()
269 static __attribute__ ((__noreturn__)) void usage(const char *progname)  in usage()
272 	    "usage: %s [-o out_file] [-p policy_file] fc_file\n"  in usage()
274 	    "-o       Optional file name of the PCRE formatted binary\n\t"  in usage()
277 	    "-p       Optional binary policy file that will be used to\n\t"  in usage()
279 	    "-r       Omit precompiled regular expressions from the output.\n\t"  in usage()
285 	    "-i       Print regular expression info end exit. That is, back\n\t"  in usage()
288 	    "         <pointer width>-<size type width>-<endianness>, e.g.,\n\t"  in usage()
289 	    "         \"8-8-el\" for x86_64.\n\t"  in usage()
295 int main(int argc, char *argv[])  in main()
297 	const char *path = NULL;  in main()
298 	const char *out_file = NULL;  in main()
300 	char stack_path[PATH_MAX + 1];  in main()
301 	char *tmp = NULL;  in main()
366 	rec->backend = SELABEL_CTX_FILE;  in main()
372 	 * validation - unless the -p option is used in which case if an  in main()
374 	rec->validating = 1;  in main()
387 	rec->data = data;  in main()
443 		fprintf(stderr, "%s: rename %s -> %s failed: %s\n", argv[0], tmp, stack_path, strerror(errno));  in main()
461 	rc = -1;  in main()