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Add -g option to enable filename-based transitions

This commit is contained in:
Pierre-Hugues Husson 2015-11-01 17:38:32 +01:00
parent 10601e7760
commit a0632a572a
1 changed files with 47 additions and 3 deletions
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50
sepolicy-inject.c
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@ -223,6 +223,44 @@ int add_transition(char *srcS, char *origS, char *tgtS, char *c, policydb_t *pol
return 0;
}
int add_file_transition(char *srcS, char *origS, char *tgtS, char *c, char* filename, policydb_t *policy) {
type_datum_t *src, *tgt, *orig;
class_datum_t *cls;
src = hashtab_search(policy->p_types.table, srcS);
if (src == NULL) {
fprintf(stderr, "source type %s does not exist\n", srcS);
return 1;
}
tgt = hashtab_search(policy->p_types.table, tgtS);
if (tgt == NULL) {
fprintf(stderr, "target type %s does not exist\n", tgtS);
return 1;
}
cls = hashtab_search(policy->p_classes.table, c);
if (cls == NULL) {
fprintf(stderr, "class %s does not exist\n", c);
return 1;
}
orig = hashtab_search(policy->p_types.table, origS);
if (cls == NULL) {
fprintf(stderr, "class %s does not exist\n", origS);
return 1;
}
filename_trans_t *new_transition = cmalloc(sizeof(*new_transition));
new_transition->stype = src->s.value;
new_transition->ttype = orig->s.value;
new_transition->tclass = cls->s.value;
new_transition->otype = tgt->s.value;
new_transition->name = strdup(filename);
new_transition->next = policy->filename_trans;
policy->filename_trans = new_transition;
return 0;
}
int add_type(char *domainS, char *typeS, policydb_t *policy) {
type_datum_t *domain;
@ -282,7 +320,7 @@ int load_policy(char *filename, policydb_t *policydb, struct policy_file *pf) {
int main(int argc, char **argv)
{
char *policy = NULL, *source = NULL, *target = NULL, *class = NULL, *perm = NULL;
char *fcon = NULL, *outfile = NULL, *permissive = NULL, *trust = NULL;
char *fcon = NULL, *outfile = NULL, *permissive = NULL, *trust = NULL, *filetrans = NULL;
policydb_t policydb;
struct policy_file pf, outpf;
sidtab_t sidtab;
@ -298,6 +336,7 @@ int main(int argc, char **argv)
{"class", required_argument, NULL, 'c'},
{"perm", required_argument, NULL, 'p'},
{"fcon", required_argument, NULL, 'f'},
{"filetransition", required_argument, NULL, 'g'},
{"policy", required_argument, NULL, 'P'},
{"output", required_argument, NULL, 'o'},
{"permissive", required_argument, NULL, 'Z'},
@ -305,7 +344,7 @@ int main(int argc, char **argv)
{NULL, 0, NULL, 0}
};
while ((ch = getopt_long(argc, argv, "a:f:s:t:c:p:P:o:Z:z:", long_options, NULL)) != -1) {
while ((ch = getopt_long(argc, argv, "a:f:g:s:t:c:p:P:o:Z:z:", long_options, NULL)) != -1) {
switch (ch) {
case 'a':
trust = optarg;
@ -313,6 +352,9 @@ int main(int argc, char **argv)
case 'f':
fcon = optarg;
break;
case 'g':
filetrans = optarg;
break;
case 's':
source = optarg;
break;
@ -344,7 +386,7 @@ int main(int argc, char **argv)
}
}
if (((!source || !target || !class || !perm) && !permissive && !fcon && !trust) || !policy)
if (((!source || !target || !class || !perm) && !permissive && !fcon && !trust &&!filetrans) || !policy)
usage(argv[0]);
if(!outfile)
@ -374,6 +416,8 @@ int main(int argc, char **argv)
fprintf(stderr, "Could not set bit in permissive map\n");
return 1;
}
} else if(filetrans) {
add_file_transition(source, fcon, target, class, filetrans, &policydb);
} else if(fcon) {
add_transition(source, fcon, target, class, &policydb);
} else if(trust) {