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Diffstat (limited to 'source4/nsswitch/wb_client.c')
| -rw-r--r-- | source4/nsswitch/wb_client.c | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/source4/nsswitch/wb_client.c b/source4/nsswitch/wb_client.c new file mode 100644 index 0000000000..62c9686960 --- /dev/null +++ b/source4/nsswitch/wb_client.c @@ -0,0 +1,307 @@ +/* + Unix SMB/CIFS implementation. + + winbind client code + + Copyright (C) Tim Potter 2000 + Copyright (C) Andrew Tridgell 2000 + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the + Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. +*/ + +#include "includes.h" +#include "nsswitch/nss.h" + +#undef DBGC_CLASS +#define DBGC_CLASS DBGC_WINBIND + +extern DOM_SID global_sid_NULL; /* NULL sid */ + +NSS_STATUS winbindd_request(int req_type, + struct winbindd_request *request, + struct winbindd_response *response); + +/* Call winbindd to convert a name to a sid */ + +BOOL winbind_lookup_name(const char *dom_name, const char *name, DOM_SID *sid, + enum SID_NAME_USE *name_type) +{ + struct winbindd_request request; + struct winbindd_response response; + NSS_STATUS result; + + if (!sid || !name_type) + return False; + + /* Send off request */ + + ZERO_STRUCT(request); + ZERO_STRUCT(response); + + fstrcpy(request.data.name.dom_name, dom_name); + fstrcpy(request.data.name.name, name); + + if ((result = winbindd_request(WINBINDD_LOOKUPNAME, &request, + &response)) == NSS_STATUS_SUCCESS) { + if (!string_to_sid(sid, response.data.sid.sid)) + return False; + *name_type = (enum SID_NAME_USE)response.data.sid.type; + } + + return result == NSS_STATUS_SUCCESS; +} + +/* Call winbindd to convert sid to name */ + +BOOL winbind_lookup_sid(const DOM_SID *sid, + fstring dom_name, fstring name, + enum SID_NAME_USE *name_type) +{ + struct winbindd_request request; + struct winbindd_response response; + NSS_STATUS result; + fstring sid_str; + + /* Initialise request */ + + ZERO_STRUCT(request); + ZERO_STRUCT(response); + + sid_to_string(sid_str, sid); + fstrcpy(request.data.sid, sid_str); + + /* Make request */ + + result = winbindd_request(WINBINDD_LOOKUPSID, &request, &response); + + /* Copy out result */ + + if (result == NSS_STATUS_SUCCESS) { + fstrcpy(dom_name, response.data.name.dom_name); + fstrcpy(name, response.data.name.name); + *name_type = (enum SID_NAME_USE)response.data.name.type; + + DEBUG(10, ("winbind_lookup_sid: SUCCESS: SID %s -> %s %s\n", + sid_str, dom_name, name)); + } + + return (result == NSS_STATUS_SUCCESS); +} + +/* Call winbindd to convert SID to uid */ + +BOOL winbind_sid_to_uid(uid_t *puid, const DOM_SID *sid) +{ + struct winbindd_request request; + struct winbindd_response response; + int result; + fstring sid_str; + + if (!puid) + return False; + + /* Initialise request */ + + ZERO_STRUCT(request); + ZERO_STRUCT(response); + + sid_to_string(sid_str, sid); + fstrcpy(request.data.sid, sid_str); + + /* Make request */ + + result = winbindd_request(WINBINDD_SID_TO_UID, &request, &response); + + /* Copy out result */ + + if (result == NSS_STATUS_SUCCESS) { + *puid = response.data.uid; + } + + return (result == NSS_STATUS_SUCCESS); +} + +/* Call winbindd to convert uid to sid */ + +BOOL winbind_uid_to_sid(DOM_SID *sid, uid_t uid) +{ + struct winbindd_request request; + struct winbindd_response response; + int result; + + if (!sid) + return False; + + /* Initialise request */ + + ZERO_STRUCT(request); + ZERO_STRUCT(response); + + request.data.uid = uid; + + /* Make request */ + + result = winbindd_request(WINBINDD_UID_TO_SID, &request, &response); + + /* Copy out result */ + + if (result == NSS_STATUS_SUCCESS) { + if (!string_to_sid(sid, response.data.sid.sid)) + return False; + } else { + sid_copy(sid, &global_sid_NULL); + } + + return (result == NSS_STATUS_SUCCESS); +} + +/* Call winbindd to convert SID to gid */ + +BOOL winbind_sid_to_gid(gid_t *pgid, const DOM_SID *sid) +{ + struct winbindd_request request; + struct winbindd_response response; + int result; + fstring sid_str; + + if (!pgid) + return False; + + /* Initialise request */ + + ZERO_STRUCT(request); + ZERO_STRUCT(response); + + sid_to_string(sid_str, sid); + fstrcpy(request.data.sid, sid_str); + + /* Make request */ + + result = winbindd_request(WINBINDD_SID_TO_GID, &request, &response); + + /* Copy out result */ + + if (result == NSS_STATUS_SUCCESS) { + *pgid = response.data.gid; + } + + return (result == NSS_STATUS_SUCCESS); +} + +/* Call winbindd to convert gid to sid */ + +BOOL winbind_gid_to_sid(DOM_SID *sid, gid_t gid) +{ + struct winbindd_request request; + struct winbindd_response response; + int result; + + if (!sid) + return False; + + /* Initialise request */ + + ZERO_STRUCT(request); + ZERO_STRUCT(response); + + request.data.gid = gid; + + /* Make request */ + + result = winbindd_request(WINBINDD_GID_TO_SID, &request, &response); + + /* Copy out result */ + + if (result == NSS_STATUS_SUCCESS) { + if (!string_to_sid(sid, response.data.sid.sid)) + return False; + } else { + sid_copy(sid, &global_sid_NULL); + } + + return (result == NSS_STATUS_SUCCESS); +} + +/* Fetch the list of groups a user is a member of from winbindd. This is + used by winbind_getgroups. */ + +static int wb_getgroups(const char *user, gid_t **groups) +{ + struct winbindd_request request; + struct winbindd_response response; + int result; + + /* Call winbindd */ + + fstrcpy(request.data.username, user); + + ZERO_STRUCT(response); + + result = winbindd_request(WINBINDD_GETGROUPS, &request, &response); + + if (result == NSS_STATUS_SUCCESS) { + + /* Return group list. Don't forget to free the group list + when finished. */ + + *groups = (gid_t *)response.extra_data; + return response.data.num_entries; + } + + return -1; +} + +/* Return a list of groups the user is a member of. This function is + useful for large systems where inverting the group database would be too + time consuming. If size is zero, list is not modified and the total + number of groups for the user is returned. */ + +int winbind_getgroups(const char *user, int size, gid_t *list) +{ + gid_t *groups = NULL; + int result, i; + + /* + * Don't do the lookup if the name has no separator _and_ we are not in + * 'winbind use default domain' mode. + */ + + if (!(strchr(user, *lp_winbind_separator()) || lp_winbind_use_default_domain())) + return -1; + + /* Fetch list of groups */ + + result = wb_getgroups(user, &groups); + + if (size == 0) + goto done; + + if (result > size) { + result = -1; + errno = EINVAL; /* This is what getgroups() does */ + goto done; + } + + /* Copy list of groups across */ + + for (i = 0; i < result; i++) { + list[i] = groups[i]; + } + + done: + SAFE_FREE(groups); + return result; +} |