diff options
Diffstat (limited to 'src/responder/sudo/sudosrv_query.c')
| -rw-r--r-- | src/responder/sudo/sudosrv_query.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/src/responder/sudo/sudosrv_query.c b/src/responder/sudo/sudosrv_query.c new file mode 100644 index 00000000..8b98da6e --- /dev/null +++ b/src/responder/sudo/sudosrv_query.c @@ -0,0 +1,178 @@ +/* + Authors: + Pavel Březina <pbrezina@redhat.com> + + Copyright (C) 2011 Red Hat + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <string.h> +#include <stdint.h> +#include <errno.h> +#include <talloc.h> + +#include "util/util.h" +#include "responder/sudo/sudosrv_private.h" + +int sudosrv_response_append_string(TALLOC_CTX *mem_ctx, + const char *str, + size_t str_len, + uint8_t **_response_body, + size_t *_response_len) +{ + size_t response_len = *_response_len; + uint8_t *response_body = *_response_body; + + response_body = talloc_realloc(mem_ctx, response_body, uint8_t, + response_len + (str_len * sizeof(char))); + if (response_body == NULL) { + DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_realloc() failed\n")); + return ENOMEM; + } + memcpy(response_body + response_len, str, str_len); + response_len += str_len; + + *_response_body = response_body; + *_response_len = response_len; + + return EOK; +} + +int sudosrv_response_append_uint32(TALLOC_CTX *mem_ctx, + uint32_t number, + uint8_t **_response_body, + size_t *_response_len) +{ + size_t response_len = *_response_len; + uint8_t *response_body = *_response_body; + + response_body = talloc_realloc(mem_ctx, response_body, uint8_t, + response_len + sizeof(int)); + if (response_body == NULL) { + DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_realloc() failed\n")); + return ENOMEM; + } + SAFEALIGN_SET_UINT32(response_body + response_len, number, &response_len); + + *_response_body = response_body; + *_response_len = response_len; + + return EOK; +} + +int sudosrv_response_append_rule(TALLOC_CTX *mem_ctx, + int attrs_num, + struct ldb_message_element *attrs, + uint8_t **_response_body, + size_t *_response_len) +{ + uint8_t *response_body = *_response_body; + size_t response_len = *_response_len; + TALLOC_CTX *tmp_ctx = NULL; + int i = 0; + int ret = EOK; + + tmp_ctx = talloc_new(NULL); + if (tmp_ctx == NULL) { + DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_new() failed\n")); + return ENOMEM; + } + + /* attrs count */ + ret = sudosrv_response_append_uint32(tmp_ctx, attrs_num, + &response_body, &response_len); + if (ret != EOK) { + goto done; + } + + /* attrs */ + for (i = 0; i < attrs_num; i++) { + ret = sudosrv_response_append_attr(tmp_ctx, attrs[i].name, + attrs[i].num_values, attrs[i].values, + &response_body, &response_len); + if (ret != EOK) { + goto done; + } + } + + *_response_body = talloc_steal(mem_ctx, response_body); + *_response_len = response_len; + + ret = EOK; + +done: + talloc_free(tmp_ctx); + return ret; +} + +int sudosrv_response_append_attr(TALLOC_CTX *mem_ctx, + const char *name, + unsigned int values_num, + struct ldb_val *values, + uint8_t **_response_body, + size_t *_response_len) +{ + uint8_t *response_body = *_response_body; + size_t response_len = *_response_len; + TALLOC_CTX *tmp_ctx = NULL; + int i = 0; + int ret = EOK; + + tmp_ctx = talloc_new(NULL); + if (tmp_ctx == NULL) { + DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_new() failed\n")); + return ENOMEM; + } + + /* attr name */ + ret = sudosrv_response_append_string(tmp_ctx, name, strlen(name) + 1, + &response_body, &response_len); + if (ret != EOK) { + goto done; + } + + /* values count */ + ret = sudosrv_response_append_uint32(tmp_ctx, values_num, + &response_body, &response_len); + if (ret != EOK) { + goto done; + } + + /* values */ + for (i = 0; i < values_num; i++) { + if (strlen((char*)(values[i].data)) != values[i].length) { + DEBUG(SSSDBG_CRIT_FAILURE, ("value is not a string")); + ret = EINVAL; + goto done; + } + + ret = sudosrv_response_append_string(tmp_ctx, + (const char*)values[i].data, + values[i].length + 1, + &response_body, &response_len); + if (ret != EOK) { + goto done; + } + } + + *_response_body = talloc_steal(mem_ctx, response_body); + *_response_len = response_len; + + ret = EOK; + +done: + talloc_free(tmp_ctx); + return ret; +} |