Line data Source code
1 : #include "../../burp.h"
2 : #include "../../alloc.h"
3 : #include "../../bu.h"
4 : #include "../../cstat.h"
5 : #include "../../conffile.h"
6 : #include "../../fsops.h"
7 : #include "../../lock.h"
8 : #include "../../log.h"
9 : #include "../../strlist.h"
10 : #include "../bu_get.h"
11 : #include "../sdirs.h"
12 : #include "cstat.h"
13 :
14 : #ifndef UTEST
15 : static
16 : #endif
17 19 : int cstat_permitted(struct cstat *cstat,
18 : struct conf **parentconfs, struct conf **cconfs)
19 : {
20 : struct strlist *rclient;
21 : const char *parentconf_cname;
22 :
23 19 : parentconf_cname=get_string(parentconfs[OPT_CNAME]);
24 19 : if(!parentconf_cname) return 0;
25 :
26 : // Allow clients to look at themselves.
27 4 : if(!strcmp(cstat->name, parentconf_cname)) return 1;
28 :
29 : // Do not allow clients using the restore_client option to see more
30 : // than the client that it is pretending to be.
31 3 : if(get_string(parentconfs[OPT_RESTORE_CLIENT])) return 0;
32 :
33 : // If we are listed in this restore_client list.
34 6 : for(rclient=get_strlist(cconfs[OPT_RESTORE_CLIENTS]);
35 2 : rclient; rclient=rclient->next)
36 3 : if(!strcmp(get_string(parentconfs[OPT_CNAME]), rclient->path))
37 : return 1;
38 : return 0;
39 : }
40 :
41 15 : static int set_cstat_from_conf(struct cstat *cstat,
42 : struct conf **parentconfs, struct conf **cconfs)
43 : {
44 15 : struct strlist *s=NULL;
45 : // Make sure the permitted flag is set appropriately.
46 15 : cstat->permitted=cstat_permitted(cstat, parentconfs, cconfs);
47 :
48 15 : cstat->protocol=get_protocol(cconfs);
49 15 : sdirs_free((struct sdirs **)&cstat->sdirs);
50 15 : if(!(cstat->sdirs=sdirs_alloc())
51 15 : || sdirs_init_from_confs((struct sdirs *)cstat->sdirs, cconfs))
52 : return -1;
53 15 : strlists_free(&cstat->labels);
54 21 : for(s=get_strlist(cconfs[OPT_LABEL]); s; s=s->next)
55 6 : if(strlist_add_sorted(&cstat->labels, s->path, s->flag))
56 : return -1;
57 : return 0;
58 : }
59 :
60 : #ifndef UTEST
61 : static
62 : #endif
63 24 : int cstat_get_client_names(struct cstat **clist, const char *clientconfdir)
64 : {
65 24 : int i=0;
66 24 : int n=0;
67 24 : int ret=-1;
68 : struct cstat *c;
69 : struct cstat *cnew;
70 24 : struct dirent **dir=NULL;
71 :
72 24 : if((n=scandir(clientconfdir, &dir, filter_dot, NULL))<0)
73 : {
74 1 : logp("scandir failed for %s in %s: %s\n",
75 1 : clientconfdir, __func__, strerror(errno));
76 1 : goto end;
77 : }
78 75 : for(i=0; i<n; i++)
79 : {
80 : // looks_like...() also avoids '.' and '..'.
81 75 : if(looks_like_tmp_or_hidden_file(dir[i]->d_name))
82 2 : continue;
83 173 : for(c=*clist; c; c=c->next)
84 : {
85 117 : if(!c->name) continue;
86 117 : if(!strcmp(dir[i]->d_name, c->name))
87 : break;
88 : }
89 73 : if(c) continue;
90 :
91 : // We do not have this client yet. Add it.
92 56 : if(!(cnew=cstat_alloc())
93 56 : || cstat_init(cnew, dir[i]->d_name, clientconfdir))
94 : goto end;
95 56 : cstat_add_to_list(clist, cnew);
96 : }
97 :
98 : ret=0;
99 : end:
100 24 : if(dir)
101 : {
102 75 : for(i=0; i<n; i++)
103 75 : free(dir[i]);
104 23 : free(dir);
105 : }
106 24 : return ret;
107 : }
108 :
109 : static void cstat_free_w(struct cstat **cstat)
110 : {
111 8 : sdirs_free((struct sdirs **)&(*cstat)->sdirs);
112 8 : cstat_free(cstat);
113 : }
114 :
115 : #ifndef UTEST
116 : static
117 : #endif
118 8 : void cstat_remove(struct cstat **clist, struct cstat **cstat)
119 : {
120 : struct cstat *c;
121 8 : if(!cstat || !*cstat) return;
122 8 : if(*clist==*cstat)
123 : {
124 4 : *clist=(*clist)->next;
125 4 : if(*clist) (*clist)->prev=NULL;
126 : cstat_free_w(cstat);
127 4 : *cstat=*clist;
128 4 : return;
129 : }
130 10 : for(c=*clist; c; c=c->next)
131 : {
132 7 : if(c->next!=*cstat)
133 3 : continue;
134 4 : c->next=(*cstat)->next;
135 4 : if(c->next)
136 3 : c->next->prev=(*cstat)->prev;
137 : cstat_free_w(cstat);
138 4 : *cstat=*clist;
139 4 : return;
140 : }
141 : }
142 :
143 : // Returns -1 on error, otherwise the number of clients that were reloaded.
144 : #ifndef UTEST
145 : static
146 : #endif
147 12 : int cstat_reload_from_client_confs(struct cstat **clist,
148 : struct conf **globalcs, struct conf **cconfs)
149 : {
150 : struct cstat *c;
151 : struct stat statp;
152 : static time_t global_mtime=0;
153 12 : time_t global_mtime_new=0;
154 : const char *globalconffile;
155 12 : int reloaded=0;
156 :
157 12 : globalconffile=get_string(globalcs[OPT_CONFFILE]);
158 :
159 12 : if(stat(globalconffile, &statp)
160 11 : || !S_ISREG(statp.st_mode))
161 : {
162 1 : logp("Could not stat main conf file %s: %s\n",
163 1 : globalconffile, strerror(errno));
164 1 : return -1;
165 : }
166 11 : global_mtime_new=statp.st_mtime;
167 :
168 : // FIX THIS: If '. included' conf files have changed, this code will
169 : // not detect them. I guess that conf.c should make a list of them.
170 : while(1)
171 : {
172 41 : for(c=*clist; c; c=c->next)
173 : {
174 : // Look at the client conf files to see if they have
175 : // changed, and reload bits and pieces if they have.
176 :
177 31 : if(!c->conffile) continue;
178 62 : if(stat(c->conffile, &statp)
179 28 : || !S_ISREG(statp.st_mode))
180 : {
181 3 : cstat_remove(clist, &c);
182 3 : break; // Go to the beginning of the list.
183 : }
184 28 : if(statp.st_mtime==c->conf_mtime
185 12 : && global_mtime_new==global_mtime)
186 : {
187 : // The conf files have not changed - no need to
188 : // do anything.
189 12 : continue;
190 : }
191 16 : c->conf_mtime=statp.st_mtime;
192 :
193 16 : confs_free_content(cconfs);
194 16 : if(set_string(cconfs[OPT_CNAME], c->name))
195 : return -1;
196 16 : if(conf_load_clientconfdir(globalcs, cconfs))
197 : {
198 : // If the file has junk in it, we will keep
199 : // trying to reload it after removal.
200 : // So, just deny permission to view it.
201 1 : c->permitted=0;
202 1 : continue;
203 : }
204 :
205 15 : if(set_cstat_from_conf(c, globalcs, cconfs))
206 : return -1;
207 15 : reloaded++;
208 : }
209 : // Only stop if the end of the list was not reached.
210 13 : if(!c) break;
211 : }
212 11 : if(global_mtime!=global_mtime_new)
213 3 : global_mtime=global_mtime_new;
214 11 : return reloaded;
215 : }
216 :
217 22 : void cstat_set_run_status(struct cstat *cstat, enum run_status run_status)
218 : {
219 22 : if(!cstat->permitted)
220 22 : return;
221 20 : cstat->run_status=run_status;
222 : }
223 :
224 : // Return -1 on error, or the number of reloaded clients.
225 : #ifndef UTEST
226 : static
227 : #endif
228 8 : int reload_from_clientdir(struct cstat **clist)
229 : {
230 8 : int reloaded=0;
231 : struct cstat *c;
232 27 : for(c=*clist; c; c=c->next)
233 : {
234 : struct stat statp;
235 : struct sdirs *sdirs;
236 :
237 36 : if(!c->permitted) continue;
238 :
239 6 : sdirs=(struct sdirs *)c->sdirs;
240 6 : if(!sdirs || !sdirs->client) continue;
241 12 : if(stat(sdirs->client, &statp))
242 2 : continue;
243 :
244 4 : if(statp.st_mtime==c->clientdir_mtime)
245 : {
246 : // clientdir has not changed - no need to do anything.
247 2 : continue;
248 : }
249 2 : c->clientdir_mtime=statp.st_mtime;
250 :
251 2 : bu_list_free(&c->bu);
252 : // FIX THIS: should probably not load everything each time.
253 : // if(bu_get_current(sdirs, &c->bu))
254 : // goto error;
255 2 : if(bu_get_list_with_working(sdirs, &c->bu, c))
256 : goto error;
257 2 : reloaded++;
258 : }
259 : return reloaded;
260 : error:
261 0 : return -1;
262 : }
263 :
264 2 : int cstat_load_data_from_disk(struct cstat **clist, struct conf **globalcs,
265 : struct conf **cconfs)
266 : {
267 2 : if(!globalcs) return -1;
268 4 : return cstat_get_client_names(clist,
269 2 : get_string(globalcs[OPT_CLIENTCONFDIR]))
270 2 : || cstat_reload_from_client_confs(clist, globalcs, cconfs)<0
271 4 : || reload_from_clientdir(clist)<0;
272 : }
273 :
274 26 : int cstat_set_backup_list(struct cstat *cstat)
275 : {
276 26 : struct bu *bu=NULL;
277 :
278 : // Free any previous list.
279 26 : bu_list_free(&cstat->bu);
280 :
281 26 : if(!cstat->permitted) return 0;
282 :
283 24 : if(bu_get_list_with_working((struct sdirs *)cstat->sdirs, &bu, cstat))
284 : {
285 : //logp("error when looking up current backups\n");
286 : return 0;
287 : }
288 :
289 : // Find the end of the list just loaded, so we can traverse
290 : // it backwards later.
291 50 : while(bu && bu->next) bu=bu->next;
292 :
293 23 : cstat->bu=bu;
294 23 : return 0;
295 : }
|
