Line data Source code
1 : #include "../burp.h"
2 : #include "sdirs.h"
3 : #include "../alloc.h"
4 : #include "../conf.h"
5 : #include "../fsops.h"
6 : #include "../lock.h"
7 : #include "../log.h"
8 : #include "../prepend.h"
9 : #include "timestamp.h"
10 :
11 311 : struct sdirs *sdirs_alloc(void)
12 : {
13 311 : return (struct sdirs *)calloc_w(1, sizeof(struct sdirs), __func__);
14 : }
15 :
16 312 : static int do_lock_dirs(struct sdirs *sdirs,
17 : const char *cname, const char *conf_lockdir)
18 : {
19 312 : int ret=-1;
20 312 : char *lockbase=NULL;
21 312 : char *lockfile=NULL;
22 312 : if(conf_lockdir)
23 : {
24 1 : if(!(sdirs->lockdir=strdup_w(conf_lockdir, __func__))
25 1 : || !(lockbase=prepend_s(sdirs->lockdir, cname)))
26 : goto end;
27 : }
28 : else
29 : {
30 311 : if(!(sdirs->lockdir=strdup_w(sdirs->client, __func__))
31 311 : || !(lockbase=strdup_w(sdirs->client, __func__)))
32 : goto end;
33 : }
34 312 : if(!(lockfile=prepend_s(lockbase, "lockfile"))
35 312 : || !(sdirs->lock=lock_alloc_and_init(lockfile)))
36 : goto end;
37 312 : ret=0;
38 : end:
39 312 : free_w(&lockbase);
40 312 : free_w(&lockfile);
41 312 : return ret;
42 : }
43 :
44 : static int free_prepend_s(char **dst, const char *a, const char *b)
45 : {
46 23 : free_w(dst);
47 23 : return !(*dst=prepend_s(a, b));
48 : }
49 :
50 5 : int sdirs_get_real_manifest(struct sdirs *sdirs, enum protocol protocol)
51 : {
52 15 : return free_prepend_s(&sdirs->rmanifest,
53 5 : sdirs->rworking, protocol==PROTO_1?"manifest.gz":"manifest");
54 : }
55 :
56 7 : int sdirs_get_real_working_from_symlink(struct sdirs *sdirs)
57 : {
58 7 : char real[256]="";
59 7 : if(readlink_w(sdirs->working, real, sizeof(real))<0)
60 : {
61 0 : logp("Could not readlink %s: %s\n",
62 0 : sdirs->working, strerror(errno));
63 0 : return -1;
64 : }
65 14 : if(free_prepend_s(&sdirs->rworking, sdirs->client, real)
66 14 : || free_prepend_s(&sdirs->treepath,
67 : sdirs->rworking, DATA_DIR "/" TREE_DIR))
68 : return -1;
69 : return 0;
70 : }
71 :
72 2 : int sdirs_create_real_working(struct sdirs *sdirs, const char *timestamp_format)
73 : {
74 2 : char tstmp[64]="";
75 2 : char fname[64]="";
76 :
77 2 : if(build_path_w(sdirs->working)
78 2 : || timestamp_get_new(sdirs,
79 : tstmp, sizeof(tstmp), fname, sizeof(fname), timestamp_format)
80 4 : || free_prepend_s(&sdirs->rworking, sdirs->client, fname)
81 4 : || free_prepend_s(&sdirs->treepath,
82 : sdirs->rworking, DATA_DIR "/" TREE_DIR))
83 : return -1;
84 :
85 : // Add the working symlink before creating the directory.
86 : // This is because bedup checks the working symlink before
87 : // going into a directory. If the directory got created first,
88 : // bedup might go into it in the moment before the symlink
89 : // gets added.
90 2 : if(do_symlink(fname, sdirs->working))
91 : // relative link to the real work dir
92 : {
93 0 : logp("could not point working symlink to: %s\n",
94 : sdirs->rworking);
95 0 : return -1;
96 : }
97 2 : if(mkdir(sdirs->rworking, 0777))
98 : {
99 0 : logp("could not mkdir for next backup: %s\n", sdirs->rworking);
100 0 : unlink(sdirs->working);
101 0 : return -1;
102 : }
103 2 : if(timestamp_write(sdirs->timestamp, tstmp))
104 : {
105 0 : logp("unable to write timestamp %s to %s\n",
106 : tstmp, sdirs->timestamp);
107 0 : return -1;
108 : }
109 :
110 : return 0;
111 : }
112 :
113 312 : static int do_common_dirs(struct sdirs *sdirs, const char *manual_delete)
114 : {
115 312 : if(!(sdirs->working=prepend_s(sdirs->client, "working"))
116 312 : || !(sdirs->finishing=prepend_s(sdirs->client, "finishing"))
117 312 : || !(sdirs->current=prepend_s(sdirs->client, "current"))
118 312 : || !(sdirs->currenttmp=prepend_s(sdirs->client, "current.tmp"))
119 312 : || !(sdirs->timestamp=prepend_s(sdirs->working, "timestamp"))
120 312 : || !(sdirs->phase1data=prepend_s(sdirs->working, "phase1.gz"))
121 312 : || !(sdirs->changed=prepend_s(sdirs->working, "changed"))
122 312 : || !(sdirs->unchanged=prepend_s(sdirs->working, "unchanged")))
123 : return -1;
124 312 : if(manual_delete)
125 : {
126 0 : if(!(sdirs->deleteme=strdup_w(manual_delete, __func__)))
127 : return -1;
128 : }
129 : else
130 : {
131 312 : if(!(sdirs->deleteme=prepend_s(sdirs->client, "deleteme")))
132 : return -1;
133 : }
134 : return 0;
135 : }
136 :
137 : // Maybe should be in a protocol1 directory.
138 131 : static int do_protocol1_dirs(struct sdirs *sdirs, const char *cname,
139 : const char *manual_delete)
140 : {
141 131 : if(!(sdirs->clients=strdup_w(sdirs->base, __func__))
142 131 : || !(sdirs->client=prepend_s(sdirs->clients, cname))
143 131 : || do_common_dirs(sdirs, manual_delete)
144 131 : || !(sdirs->currentdata=prepend_s(sdirs->current, DATA_DIR))
145 131 : || !(sdirs->manifest=prepend_s(sdirs->working, "manifest.gz"))
146 131 : || !(sdirs->datadirtmp=prepend_s(sdirs->working, "data.tmp"))
147 131 : || !(sdirs->cmanifest=prepend_s(sdirs->current, "manifest.gz"))
148 131 : || !(sdirs->cincexc=prepend_s(sdirs->current, "incexc"))
149 131 : || !(sdirs->deltmppath=prepend_s(sdirs->working, "deltmppath")))
150 : return -1;
151 : // sdirs->rworking gets set later.
152 : // sdirs->treepath gets set later.
153 : return 0;
154 : }
155 :
156 181 : static int do_protocol2_dirs(struct sdirs *sdirs,
157 : const char *cname, const char *dedup_group, const char *manual_delete)
158 : {
159 181 : if(!dedup_group)
160 : {
161 0 : logp("dedup_group unset in %s\n", __func__);
162 0 : return -1;
163 : }
164 181 : if(!(sdirs->dedup=prepend_s(sdirs->base, dedup_group))
165 181 : || !(sdirs->clients=prepend_s(sdirs->dedup, "clients"))
166 181 : || !(sdirs->client=prepend_s(sdirs->clients, cname))
167 181 : || !(sdirs->dindex=prepend_s(sdirs->client, "dindex"))
168 181 : || !(sdirs->dfiles=prepend_s(sdirs->client, "dfiles"))
169 181 : || do_common_dirs(sdirs, manual_delete)
170 181 : || !(sdirs->data=prepend_s(sdirs->dedup, DATA_DIR))
171 181 : || !(sdirs->cfiles=prepend_s(sdirs->data, "cfiles"))
172 181 : || !(sdirs->global_sparse=prepend_s(sdirs->data, "sparse"))
173 181 : || !(sdirs->champlock=prepend_s(sdirs->data, "cc.lock"))
174 181 : || !(sdirs->champsock=prepend_s(sdirs->data, "cc.sock"))
175 181 : || !(sdirs->champlog=prepend_s(sdirs->data, "cc.log"))
176 181 : || !(sdirs->champ_dindex_lock=prepend_s(sdirs->data, "dindex.lock"))
177 181 : || !(sdirs->manifest=prepend_s(sdirs->working, "manifest"))
178 181 : || !(sdirs->cmanifest=prepend_s(sdirs->current, "manifest")))
179 : return -1;
180 : // sdirs->rworking gets set later.
181 : // sdirs->rmanifest gets set later.
182 : return 0;
183 : }
184 :
185 16 : int sdirs_init_from_confs(struct sdirs *sdirs, struct conf **confs)
186 : {
187 16 : return sdirs_init(
188 : sdirs,
189 : get_protocol(confs),
190 16 : get_string(confs[OPT_DIRECTORY]),
191 16 : get_string(confs[OPT_CNAME]),
192 16 : get_string(confs[OPT_CLIENT_LOCKDIR]),
193 16 : get_string(confs[OPT_DEDUP_GROUP]),
194 16 : get_string(confs[OPT_MANUAL_DELETE])
195 : );
196 : }
197 :
198 312 : int sdirs_init(struct sdirs *sdirs, enum protocol protocol,
199 : const char *directory, const char *cname, const char *conf_lockdir,
200 : const char *dedup_group, const char *manual_delete)
201 : {
202 312 : if(!directory)
203 : {
204 0 : logp("directory unset in %s\n", __func__);
205 0 : goto error;
206 : }
207 :
208 312 : if(!(sdirs->base=strdup_w(directory, __func__)))
209 : goto error;
210 :
211 312 : sdirs->protocol=protocol;
212 :
213 312 : if(protocol==PROTO_1)
214 : {
215 131 : if(do_protocol1_dirs(sdirs, cname, manual_delete))
216 : goto error;
217 : }
218 : else
219 : {
220 181 : if(do_protocol2_dirs(sdirs, cname, dedup_group, manual_delete))
221 : goto error;
222 : }
223 :
224 312 : if(do_lock_dirs(sdirs, cname, conf_lockdir)) goto error;
225 :
226 : return 0;
227 : error:
228 : return -1;
229 : }
230 :
231 312 : void sdirs_free_content(struct sdirs *sdirs)
232 : {
233 312 : free_w(&sdirs->base);
234 312 : free_w(&sdirs->dedup);
235 312 : free_w(&sdirs->champlock);
236 312 : free_w(&sdirs->champsock);
237 312 : free_w(&sdirs->champlog);
238 312 : free_w(&sdirs->champ_dindex_lock);
239 312 : free_w(&sdirs->data);
240 312 : free_w(&sdirs->clients);
241 312 : free_w(&sdirs->client);
242 :
243 312 : free_w(&sdirs->working);
244 312 : free_w(&sdirs->rworking);
245 312 : free_w(&sdirs->finishing);
246 312 : free_w(&sdirs->current);
247 312 : free_w(&sdirs->currenttmp);
248 312 : free_w(&sdirs->deleteme);
249 312 : free_w(&sdirs->dindex);
250 312 : free_w(&sdirs->dfiles);
251 312 : free_w(&sdirs->cfiles);
252 312 : free_w(&sdirs->global_sparse);
253 :
254 312 : free_w(&sdirs->timestamp);
255 312 : free_w(&sdirs->changed);
256 312 : free_w(&sdirs->unchanged);
257 312 : free_w(&sdirs->manifest);
258 312 : free_w(&sdirs->rmanifest);
259 312 : free_w(&sdirs->cmanifest);
260 312 : free_w(&sdirs->phase1data);
261 :
262 312 : free_w(&sdirs->lockdir);
263 312 : lock_free(&sdirs->lock);
264 :
265 : // Protocol1 directories.
266 312 : free_w(&sdirs->currentdata);
267 312 : free_w(&sdirs->datadirtmp);
268 312 : free_w(&sdirs->cincexc);
269 312 : free_w(&sdirs->deltmppath);
270 312 : free_w(&sdirs->treepath);
271 312 : }
272 :
273 350 : void sdirs_free(struct sdirs **sdirs)
274 : {
275 700 : if(!sdirs || !*sdirs) return;
276 311 : sdirs_free_content(*sdirs);
277 :
278 311 : free_v((void **)sdirs);
279 : }
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