diff options
Diffstat (limited to 'libqpol/src/permissive_query.c')
-rw-r--r-- | libqpol/src/permissive_query.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/libqpol/src/permissive_query.c b/libqpol/src/permissive_query.c new file mode 100644 index 0000000..df601c2 --- /dev/null +++ b/libqpol/src/permissive_query.c @@ -0,0 +1,95 @@ +/** +* @file +* Defines the public interface for searching and iterating over the permissive types. +* +* @author Steve Lawrence slawrence@tresys.com +* +* Copyright (C) 2006-2007 Tresys Technology, LLC +* +* This library is free software; you can redistribute it and/or +* modify it under the terms of the GNU Lesser General Public +* License as published by the Free Software Foundation; either +* version 2.1 of the License, or (at your option) any later version. +* +* This library is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +* Lesser General Public License for more details. +* +* You should have received a copy of the GNU Lesser General Public +* License along with this library; if not, write to the Free Software +* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +*/ + +#include <stddef.h> +#include <stdlib.h> +#include <stdint.h> +#include <qpol/iterator.h> +#include <qpol/policy.h> +#include <qpol/permissive_query.h> +#include <sepol/policydb/policydb.h> +#include "qpol_internal.h" +#include "iterator_internal.h" + + +int qpol_permissive_get_name(const qpol_policy_t *policy, const qpol_permissive_t * datum, const char **name) +{ + type_datum_t *internal_datum = NULL; + policydb_t *db = NULL; + + if (policy == NULL || datum == NULL || name == NULL) { + if (name != NULL) + *name = NULL; + ERR(policy, "%s", strerror(EINVAL)); + errno = EINVAL; + return STATUS_ERR; + } + + db = &policy->p->p; + internal_datum = (type_datum_t *)datum; + + *name = db->p_type_val_to_name[internal_datum->s.value - 1]; + + return STATUS_SUCCESS; +} + +int qpol_policy_get_permissive_iter(const qpol_policy_t *policy, qpol_iterator_t **iter) +{ + int error = 0; + policydb_t *db; + ebitmap_state_t *state = NULL; + + if (iter) { + *iter = NULL; + } + + if (policy == NULL || iter == NULL) { + ERR(policy, "%s", strerror(EINVAL)); + errno = EINVAL; + return STATUS_ERR; + } + + db = &policy->p->p; + + state = calloc(1, sizeof(ebitmap_state_t)); + if (state == NULL) { + error = errno; + ERR(policy, "%s", strerror(ENOMEM)); + errno = error; + return STATUS_ERR; + } + + state->bmap = &(db->permissive_map); + state->cur = state->bmap->node ? state->bmap->node->startbit : 0; + + if (qpol_iterator_create(policy, state, ebitmap_state_get_cur_permissive, + ebitmap_state_next, ebitmap_state_end, ebitmap_state_size, free, iter)) { + free(state); + return STATUS_ERR; + } + + if (state->bmap->node && !ebitmap_get_bit(state->bmap, state->cur)) + ebitmap_state_next(*iter); + + return STATUS_SUCCESS; +} |