diff options
| -rw-r--r-- | src/lib/idmap/sss_idmap.c | 111 | ||||
| -rw-r--r-- | src/lib/idmap/sss_idmap.h | 75 |
2 files changed, 186 insertions, 0 deletions
diff --git a/src/lib/idmap/sss_idmap.c b/src/lib/idmap/sss_idmap.c index ca7c5a07e..34539cebe 100644 --- a/src/lib/idmap/sss_idmap.c +++ b/src/lib/idmap/sss_idmap.c @@ -541,6 +541,51 @@ enum idmap_error_code sss_idmap_sid_to_unix(struct sss_idmap_ctx *ctx, return no_range ? IDMAP_NO_RANGE : IDMAP_NO_DOMAIN; } +enum idmap_error_code sss_idmap_check_sid_unix(struct sss_idmap_ctx *ctx, + const char *sid, + uint32_t id) +{ + struct idmap_domain_info *idmap_domain_info; + size_t dom_len; + bool no_range = false; + + if (sid == NULL) { + return IDMAP_ERROR; + } + + CHECK_IDMAP_CTX(ctx, IDMAP_CONTEXT_INVALID); + + if (ctx->idmap_domain_info == NULL) { + return IDMAP_NO_DOMAIN; + } + + idmap_domain_info = ctx->idmap_domain_info; + + if (sss_idmap_sid_is_builtin(sid)) { + return IDMAP_BUILTIN_SID; + } + + while (idmap_domain_info != NULL) { + if (idmap_domain_info->sid != NULL) { + dom_len = strlen(idmap_domain_info->sid); + if (strlen(sid) > dom_len && sid[dom_len] == '-' + && strncmp(sid, idmap_domain_info->sid, dom_len) == 0) { + + if (id >= idmap_domain_info->range->min + && id <= idmap_domain_info->range->max) { + return IDMAP_SUCCESS; + } + + no_range = true; + } + } + + idmap_domain_info = idmap_domain_info->next; + } + + return no_range ? IDMAP_NO_RANGE : IDMAP_SID_UNKNOWN; +} + enum idmap_error_code sss_idmap_unix_to_sid(struct sss_idmap_ctx *ctx, uint32_t id, char **_sid) @@ -656,6 +701,72 @@ done: return err; } +enum idmap_error_code sss_idmap_check_dom_sid_to_unix(struct sss_idmap_ctx *ctx, + struct sss_dom_sid *dom_sid, + uint32_t id) +{ + enum idmap_error_code err; + char *sid; + + CHECK_IDMAP_CTX(ctx, IDMAP_CONTEXT_INVALID); + + err = sss_idmap_dom_sid_to_sid(ctx, dom_sid, &sid); + if (err != IDMAP_SUCCESS) { + goto done; + } + + err = sss_idmap_check_sid_unix(ctx, sid, id); + +done: + ctx->free_func(sid, ctx->alloc_pvt); + + return err; +} + +enum idmap_error_code sss_idmap_check_bin_sid_unix(struct sss_idmap_ctx *ctx, + uint8_t *bin_sid, + size_t length, + uint32_t id) +{ + enum idmap_error_code err; + char *sid; + + CHECK_IDMAP_CTX(ctx, IDMAP_CONTEXT_INVALID); + + err = sss_idmap_bin_sid_to_sid(ctx, bin_sid, length, &sid); + if (err != IDMAP_SUCCESS) { + goto done; + } + + err = sss_idmap_check_sid_unix(ctx, sid, id); + +done: + ctx->free_func(sid, ctx->alloc_pvt); + + return err; +} + +enum idmap_error_code sss_idmap_check_smb_sid_unix(struct sss_idmap_ctx *ctx, + struct dom_sid *smb_sid, + uint32_t id) +{ + enum idmap_error_code err; + char *sid; + + CHECK_IDMAP_CTX(ctx, IDMAP_CONTEXT_INVALID); + + err = sss_idmap_smb_sid_to_sid(ctx, smb_sid, &sid); + if (err != IDMAP_SUCCESS) { + goto done; + } + + err = sss_idmap_check_sid_unix(ctx, sid, id); + +done: + ctx->free_func(sid, ctx->alloc_pvt); + + return err; +} enum idmap_error_code sss_idmap_unix_to_dom_sid(struct sss_idmap_ctx *ctx, uint32_t id, struct sss_dom_sid **_dom_sid) diff --git a/src/lib/idmap/sss_idmap.h b/src/lib/idmap/sss_idmap.h index 824a7c620..c9e996d0e 100644 --- a/src/lib/idmap/sss_idmap.h +++ b/src/lib/idmap/sss_idmap.h @@ -360,6 +360,81 @@ enum idmap_error_code sss_idmap_smb_sid_to_unix(struct sss_idmap_ctx *ctx, uint32_t *id); /** + * @brief Check if a SID and a unix UID or GID belong to the same range + * + * @param[in] ctx Idmap context + * @param[in] sid Zero-terminated string representation of the SID + * @param[in] id Unix UID or GID + * + * @return + * - #IDMAP_NO_DOMAIN: No domains are added to the idmap context + * - #IDMAP_SID_INVALID: Invalid SID provided + * - #IDMAP_SID_UNKNOWN: SID cannot be found in the domains added to the + * idmap context + * - #IDMAP_NO_RANGE No matching ID range found + */ +enum idmap_error_code sss_idmap_check_sid_unix(struct sss_idmap_ctx *ctx, + const char *sid, + uint32_t id); + +/** + * @brief Check if a SID structure and a unix UID or GID belong to the same range + * + * @param[in] ctx Idmap context + * @param[in] dom_sid SID structure + * @param[in] id Unix UID or GID + * + * @return + * - #IDMAP_NO_DOMAIN: No domains are added to the idmap context + * - #IDMAP_SID_INVALID: Invalid SID provided + * - #IDMAP_SID_UNKNOWN: SID cannot be found in the domains added to the + * idmap context + * - #IDMAP_NO_RANGE No matching ID range found + */ +enum idmap_error_code sss_idmap_check_dom_sid_unix(struct sss_idmap_ctx *ctx, + struct sss_dom_sid *dom_sid, + uint32_t id); + +/** + * @brief Check if a binary SID and a unix UID or GID belong to the same range + * + * @param[in] ctx Idmap context + * @param[in] bin_sid Array with the binary SID + * @param[in] length Size of the array containing the binary SID + * @param[in] id Unix UID or GID + * + * @return + * - #IDMAP_NO_DOMAIN: No domains are added to the idmap context + * - #IDMAP_SID_INVALID: Invalid SID provided + * - #IDMAP_SID_UNKNOWN: SID cannot be found in the domains added to the + * idmap context + * - #IDMAP_NO_RANGE No matching ID range found + */ +enum idmap_error_code sss_idmap_check_bin_sid_unix(struct sss_idmap_ctx *ctx, + uint8_t *bin_sid, + size_t length, + uint32_t id); + +/** + * @brief Check if a Samba dom_sid structure and a unix UID or GID belong to + * the same range + * + * @param[in] ctx Idmap context + * @param[in] smb_sid Samba dom_sid structure + * @param[in] id Unix UID or GID + * + * @return + * - #IDMAP_NO_DOMAIN: No domains are added to the idmap context + * - #IDMAP_SID_INVALID: Invalid SID provided + * - #IDMAP_SID_UNKNOWN: SID cannot be found in the domains added to the + * idmap context + * - #IDMAP_NO_RANGE No matching ID range found + */ +enum idmap_error_code sss_idmap_check_smb_sid_unix(struct sss_idmap_ctx *ctx, + struct dom_sid *smb_sid, + uint32_t id); + +/** * @brief Translate unix UID or GID to a SID * * @param[in] ctx Idmap context |