1 /*
2 Unix SMB/CIFS implementation.
3 async implementation of WINBINDD_LOOKUPRIDS
4 Copyright (C) Volker Lendecke 2009
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20 #include "includes.h"
21 #include "winbindd.h"
22 #include "librpc/gen_ndr/ndr_winbind_c.h"
23 #include "../libcli/security/security.h"
24
25 struct winbindd_lookuprids_state {
26 struct tevent_context *ev;
27 struct dom_sid domain_sid;
28 const char *domain_name;
29 struct wbint_RidArray rids;
30 struct wbint_Principals names;
31 };
32
33 static bool parse_ridlist(TALLOC_CTX *mem_ctx, char *ridstr,
34 uint32_t **prids, uint32_t *pnum_rids);
35
36 static void winbindd_lookuprids_done(struct tevent_req *subreq);
37
winbindd_lookuprids_send(TALLOC_CTX * mem_ctx,struct tevent_context * ev,struct winbindd_cli_state * cli,struct winbindd_request * request)38 struct tevent_req *winbindd_lookuprids_send(TALLOC_CTX *mem_ctx,
39 struct tevent_context *ev,
40 struct winbindd_cli_state *cli,
41 struct winbindd_request *request)
42 {
43 struct tevent_req *req, *subreq;
44 struct winbindd_lookuprids_state *state;
45 struct winbindd_domain *domain;
46
47 req = tevent_req_create(mem_ctx, &state,
48 struct winbindd_lookuprids_state);
49 if (req == NULL) {
50 return NULL;
51 }
52 state->ev = ev;
53
54 /* Ensure null termination */
55 request->data.sid[sizeof(request->data.sid)-1]='\0';
56
57 DEBUG(3, ("lookuprids (%s)\n", request->data.sid));
58
59 if (!string_to_sid(&state->domain_sid, request->data.sid)) {
60 DEBUG(5, ("%s not a SID\n", request->data.sid));
61 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
62 return tevent_req_post(req, ev);
63 }
64
65 domain = find_lookup_domain_from_sid(&state->domain_sid);
66 if (domain == NULL) {
67 struct dom_sid_buf buf;
68 DEBUG(5, ("Domain for sid %s not found\n",
69 dom_sid_str_buf(&state->domain_sid, &buf)));
70 tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN);
71 return tevent_req_post(req, ev);
72 }
73
74 if (request->extra_data.data[request->extra_len-1] != '\0') {
75 DEBUG(5, ("extra_data not 0-terminated\n"));
76 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
77 return tevent_req_post(req, ev);
78 }
79
80 if (!parse_ridlist(state, request->extra_data.data,
81 &state->rids.rids, &state->rids.num_rids)) {
82 DEBUG(5, ("parse_ridlist failed\n"));
83 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
84 return tevent_req_post(req, ev);
85 }
86
87 subreq = dcerpc_wbint_LookupRids_send(
88 state, ev, dom_child_handle(domain), &state->domain_sid,
89 &state->rids, &state->domain_name, &state->names);
90 if (tevent_req_nomem(subreq, req)) {
91 return tevent_req_post(req, ev);
92 }
93 tevent_req_set_callback(subreq, winbindd_lookuprids_done, req);
94 return req;
95 }
96
winbindd_lookuprids_done(struct tevent_req * subreq)97 static void winbindd_lookuprids_done(struct tevent_req *subreq)
98 {
99 struct tevent_req *req = tevent_req_callback_data(
100 subreq, struct tevent_req);
101 struct winbindd_lookuprids_state *state = tevent_req_data(
102 req, struct winbindd_lookuprids_state);
103 NTSTATUS status, result;
104
105 status = dcerpc_wbint_LookupRids_recv(subreq, state, &result);
106 TALLOC_FREE(subreq);
107 if (any_nt_status_not_ok(status, result, &status)) {
108 tevent_req_nterror(req, status);
109 return;
110 }
111 tevent_req_done(req);
112 }
113
winbindd_lookuprids_recv(struct tevent_req * req,struct winbindd_response * response)114 NTSTATUS winbindd_lookuprids_recv(struct tevent_req *req,
115 struct winbindd_response *response)
116 {
117 struct winbindd_lookuprids_state *state = tevent_req_data(
118 req, struct winbindd_lookuprids_state);
119 NTSTATUS status;
120 char *result;
121 uint32_t i;
122
123 if (tevent_req_is_nterror(req, &status)) {
124 DEBUG(5, ("Lookuprids failed: %s\n",nt_errstr(status)));
125 return status;
126 }
127
128 result = talloc_strdup(response, "");
129 if (result == NULL) {
130 return NT_STATUS_NO_MEMORY;
131 }
132
133 for (i=0; i<state->names.num_principals; i++) {
134 struct wbint_Principal *p = &state->names.principals[i];
135
136 result = talloc_asprintf_append_buffer(
137 result, "%d %s\n", (int)p->type, p->name);
138 if (result == NULL) {
139 return NT_STATUS_NO_MEMORY;
140 }
141 }
142
143 fstrcpy(response->data.domain_name, state->domain_name);
144 response->extra_data.data = result;
145 response->length += talloc_get_size(result);
146 return NT_STATUS_OK;
147 }
148
parse_ridlist(TALLOC_CTX * mem_ctx,char * ridstr,uint32_t ** prids,uint32_t * pnum_rids)149 static bool parse_ridlist(TALLOC_CTX *mem_ctx, char *ridstr,
150 uint32_t **prids, uint32_t *pnum_rids)
151 {
152 uint32_t i, num_rids;
153 uint32_t *rids;
154 char *p;
155
156 if (ridstr == NULL) {
157 return false;
158 }
159
160 p = ridstr;
161 num_rids = 0;
162
163 /* count rids */
164
165 while ((p = strchr(p, '\n')) != NULL) {
166 p += 1;
167 num_rids += 1;
168 }
169
170 if (num_rids == 0) {
171 *pnum_rids = 0;
172 *prids = NULL;
173 return true;
174 }
175
176 rids = talloc_array(mem_ctx, uint32_t, num_rids);
177 if (rids == NULL) {
178 return false;
179 }
180
181 p = ridstr;
182
183 for (i=0; i<num_rids; i++) {
184 char *q;
185 int error = 0;
186
187 rids[i] = smb_strtoul(p, &q, 10, &error, SMB_STR_STANDARD);
188 if (error != 0 || *q != '\n') {
189 DEBUG(0, ("Got invalid ridstr: %s\n", p));
190 return false;
191 }
192 p = q+1;
193 }
194
195 *pnum_rids = num_rids;
196 *prids = rids;
197 return true;
198 }
199