Line data Source code
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 : #include "lib/util/smb_strtox.h"
25 : #include "lib/util/string_wrappers.h"
26 :
27 : struct winbindd_lookuprids_state {
28 : struct tevent_context *ev;
29 : struct dom_sid domain_sid;
30 : const char *domain_name;
31 : struct wbint_RidArray rids;
32 : struct wbint_Principals names;
33 : };
34 :
35 : static bool parse_ridlist(TALLOC_CTX *mem_ctx, char *ridstr,
36 : uint32_t **prids, uint32_t *pnum_rids);
37 :
38 : static void winbindd_lookuprids_done(struct tevent_req *subreq);
39 :
40 160 : struct tevent_req *winbindd_lookuprids_send(TALLOC_CTX *mem_ctx,
41 : struct tevent_context *ev,
42 : struct winbindd_cli_state *cli,
43 : struct winbindd_request *request)
44 : {
45 0 : struct tevent_req *req, *subreq;
46 0 : struct winbindd_lookuprids_state *state;
47 0 : struct winbindd_domain *domain;
48 :
49 160 : req = tevent_req_create(mem_ctx, &state,
50 : struct winbindd_lookuprids_state);
51 160 : if (req == NULL) {
52 0 : return NULL;
53 : }
54 160 : state->ev = ev;
55 :
56 : /* Ensure null termination */
57 160 : request->data.sid[sizeof(request->data.sid)-1]='\0';
58 :
59 160 : DEBUG(3, ("lookuprids (%s)\n", request->data.sid));
60 :
61 160 : if (!string_to_sid(&state->domain_sid, request->data.sid)) {
62 0 : DEBUG(5, ("%s not a SID\n", request->data.sid));
63 0 : tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
64 0 : return tevent_req_post(req, ev);
65 : }
66 :
67 160 : domain = find_lookup_domain_from_sid(&state->domain_sid);
68 160 : if (domain == NULL) {
69 0 : struct dom_sid_buf buf;
70 124 : DEBUG(5, ("Domain for sid %s not found\n",
71 : dom_sid_str_buf(&state->domain_sid, &buf)));
72 124 : tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN);
73 124 : return tevent_req_post(req, ev);
74 : }
75 :
76 36 : if (request->extra_data.data[request->extra_len-1] != '\0') {
77 0 : DEBUG(5, ("extra_data not 0-terminated\n"));
78 0 : tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
79 0 : return tevent_req_post(req, ev);
80 : }
81 :
82 36 : if (!parse_ridlist(state, request->extra_data.data,
83 36 : &state->rids.rids, &state->rids.num_rids)) {
84 0 : DEBUG(5, ("parse_ridlist failed\n"));
85 0 : tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
86 0 : return tevent_req_post(req, ev);
87 : }
88 :
89 36 : subreq = dcerpc_wbint_LookupRids_send(
90 36 : state, ev, dom_child_handle(domain), &state->domain_sid,
91 36 : &state->rids, &state->domain_name, &state->names);
92 36 : if (tevent_req_nomem(subreq, req)) {
93 0 : return tevent_req_post(req, ev);
94 : }
95 36 : tevent_req_set_callback(subreq, winbindd_lookuprids_done, req);
96 36 : return req;
97 : }
98 :
99 36 : static void winbindd_lookuprids_done(struct tevent_req *subreq)
100 : {
101 36 : struct tevent_req *req = tevent_req_callback_data(
102 : subreq, struct tevent_req);
103 36 : struct winbindd_lookuprids_state *state = tevent_req_data(
104 : req, struct winbindd_lookuprids_state);
105 0 : NTSTATUS status, result;
106 :
107 36 : status = dcerpc_wbint_LookupRids_recv(subreq, state, &result);
108 36 : TALLOC_FREE(subreq);
109 36 : if (any_nt_status_not_ok(status, result, &status)) {
110 30 : tevent_req_nterror(req, status);
111 30 : return;
112 : }
113 6 : tevent_req_done(req);
114 : }
115 :
116 160 : NTSTATUS winbindd_lookuprids_recv(struct tevent_req *req,
117 : struct winbindd_response *response)
118 : {
119 160 : struct winbindd_lookuprids_state *state = tevent_req_data(
120 : req, struct winbindd_lookuprids_state);
121 0 : NTSTATUS status;
122 0 : char *result;
123 0 : uint32_t i;
124 :
125 160 : if (tevent_req_is_nterror(req, &status)) {
126 154 : DEBUG(5, ("Lookuprids failed: %s\n",nt_errstr(status)));
127 154 : return status;
128 : }
129 :
130 6 : result = talloc_strdup(response, "");
131 6 : if (result == NULL) {
132 0 : return NT_STATUS_NO_MEMORY;
133 : }
134 :
135 18 : for (i=0; i<state->names.num_principals; i++) {
136 12 : struct wbint_Principal *p = &state->names.principals[i];
137 :
138 12 : result = talloc_asprintf_append_buffer(
139 12 : result, "%d %s\n", (int)p->type, p->name);
140 12 : if (result == NULL) {
141 0 : return NT_STATUS_NO_MEMORY;
142 : }
143 : }
144 :
145 6 : fstrcpy(response->data.domain_name, state->domain_name);
146 6 : response->extra_data.data = result;
147 6 : response->length += talloc_get_size(result);
148 6 : return NT_STATUS_OK;
149 : }
150 :
151 36 : static bool parse_ridlist(TALLOC_CTX *mem_ctx, char *ridstr,
152 : uint32_t **prids, uint32_t *pnum_rids)
153 : {
154 0 : uint32_t i, num_rids;
155 0 : uint32_t *rids;
156 0 : char *p;
157 :
158 36 : if (ridstr == NULL) {
159 0 : return false;
160 : }
161 :
162 36 : p = ridstr;
163 36 : num_rids = 0;
164 :
165 : /* count rids */
166 :
167 78 : while ((p = strchr(p, '\n')) != NULL) {
168 42 : p += 1;
169 42 : num_rids += 1;
170 : }
171 :
172 36 : if (num_rids == 0) {
173 0 : *pnum_rids = 0;
174 0 : *prids = NULL;
175 0 : return true;
176 : }
177 :
178 36 : rids = talloc_array(mem_ctx, uint32_t, num_rids);
179 36 : if (rids == NULL) {
180 0 : return false;
181 : }
182 :
183 36 : p = ridstr;
184 :
185 78 : for (i=0; i<num_rids; i++) {
186 0 : char *q;
187 42 : int error = 0;
188 :
189 42 : rids[i] = smb_strtoul(p, &q, 10, &error, SMB_STR_STANDARD);
190 42 : if (error != 0 || *q != '\n') {
191 0 : DEBUG(0, ("Got invalid ridstr: %s\n", p));
192 0 : return false;
193 : }
194 42 : p = q+1;
195 : }
196 :
197 36 : *pnum_rids = num_rids;
198 36 : *prids = rids;
199 36 : return true;
200 : }
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