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1 3efd8e31 2022-10-23 thomas /*
2 3efd8e31 2022-10-23 thomas * Copyright (c) 2022 Stefan Sperling <stsp@openbsd.org>
3 3efd8e31 2022-10-23 thomas *
4 3efd8e31 2022-10-23 thomas * Permission to use, copy, modify, and distribute this software for any
5 3efd8e31 2022-10-23 thomas * purpose with or without fee is hereby granted, provided that the above
6 3efd8e31 2022-10-23 thomas * copyright notice and this permission notice appear in all copies.
7 3efd8e31 2022-10-23 thomas *
8 3efd8e31 2022-10-23 thomas * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 3efd8e31 2022-10-23 thomas * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 3efd8e31 2022-10-23 thomas * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 3efd8e31 2022-10-23 thomas * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 3efd8e31 2022-10-23 thomas * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 3efd8e31 2022-10-23 thomas * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 3efd8e31 2022-10-23 thomas * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 3efd8e31 2022-10-23 thomas */
16 3efd8e31 2022-10-23 thomas
17 3efd8e31 2022-10-23 thomas #include <sys/queue.h>
18 3efd8e31 2022-10-23 thomas #include <sys/stat.h>
19 3efd8e31 2022-10-23 thomas #include <sys/types.h>
20 3efd8e31 2022-10-23 thomas
21 3efd8e31 2022-10-23 thomas #include <event.h>
22 3efd8e31 2022-10-23 thomas #include <errno.h>
23 3efd8e31 2022-10-23 thomas #include <imsg.h>
24 3efd8e31 2022-10-23 thomas #include <signal.h>
25 3efd8e31 2022-10-23 thomas #include <stdio.h>
26 3efd8e31 2022-10-23 thomas #include <stdlib.h>
27 3efd8e31 2022-10-23 thomas #include <string.h>
28 3efd8e31 2022-10-23 thomas #include <limits.h>
29 3efd8e31 2022-10-23 thomas #include <poll.h>
30 3efd8e31 2022-10-23 thomas #include <unistd.h>
31 3efd8e31 2022-10-23 thomas #include <zlib.h>
32 3efd8e31 2022-10-23 thomas
33 3efd8e31 2022-10-23 thomas #include "buf.h"
34 3efd8e31 2022-10-23 thomas
35 3efd8e31 2022-10-23 thomas #include "got_error.h"
36 3efd8e31 2022-10-23 thomas #include "got_repository.h"
37 3efd8e31 2022-10-23 thomas #include "got_object.h"
38 3efd8e31 2022-10-23 thomas #include "got_reference.h"
39 3efd8e31 2022-10-23 thomas #include "got_path.h"
40 3efd8e31 2022-10-23 thomas
41 3efd8e31 2022-10-23 thomas #include "got_lib_delta.h"
42 3efd8e31 2022-10-23 thomas #include "got_lib_delta_cache.h"
43 b16893ba 2023-02-24 thomas #include "got_lib_hash.h"
44 3efd8e31 2022-10-23 thomas #include "got_lib_object.h"
45 3efd8e31 2022-10-23 thomas #include "got_lib_object_cache.h"
46 6d7eb4f7 2023-04-04 thomas #include "got_lib_object_idset.h"
47 6d7eb4f7 2023-04-04 thomas #include "got_lib_object_parse.h"
48 3efd8e31 2022-10-23 thomas #include "got_lib_ratelimit.h"
49 3efd8e31 2022-10-23 thomas #include "got_lib_pack.h"
50 3efd8e31 2022-10-23 thomas #include "got_lib_pack_index.h"
51 3efd8e31 2022-10-23 thomas #include "got_lib_repository.h"
52 3efd8e31 2022-10-23 thomas #include "got_lib_poll.h"
53 3efd8e31 2022-10-23 thomas
54 3efd8e31 2022-10-23 thomas #include "log.h"
55 3efd8e31 2022-10-23 thomas #include "gotd.h"
56 3efd8e31 2022-10-23 thomas #include "repo_write.h"
57 3efd8e31 2022-10-23 thomas
58 3efd8e31 2022-10-23 thomas #ifndef nitems
59 3efd8e31 2022-10-23 thomas #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
60 3efd8e31 2022-10-23 thomas #endif
61 3efd8e31 2022-10-23 thomas
62 3efd8e31 2022-10-23 thomas static struct repo_write {
63 3efd8e31 2022-10-23 thomas pid_t pid;
64 3efd8e31 2022-10-23 thomas const char *title;
65 3efd8e31 2022-10-23 thomas struct got_repository *repo;
66 3efd8e31 2022-10-23 thomas int *pack_fds;
67 3efd8e31 2022-10-23 thomas int *temp_fds;
68 62ee7d94 2023-01-10 thomas int session_fd;
69 62ee7d94 2023-01-10 thomas struct gotd_imsgev session_iev;
70 6d7eb4f7 2023-04-04 thomas struct got_pathlist_head *protected_tag_namespaces;
71 6d7eb4f7 2023-04-04 thomas struct got_pathlist_head *protected_branch_namespaces;
72 6d7eb4f7 2023-04-04 thomas struct got_pathlist_head *protected_branches;
73 3efd8e31 2022-10-23 thomas } repo_write;
74 3efd8e31 2022-10-23 thomas
75 3efd8e31 2022-10-23 thomas struct gotd_ref_update {
76 3efd8e31 2022-10-23 thomas STAILQ_ENTRY(gotd_ref_update) entry;
77 3efd8e31 2022-10-23 thomas struct got_reference *ref;
78 3efd8e31 2022-10-23 thomas int ref_is_new;
79 49563dfb 2023-01-28 thomas int delete_ref;
80 3efd8e31 2022-10-23 thomas struct got_object_id old_id;
81 3efd8e31 2022-10-23 thomas struct got_object_id new_id;
82 3efd8e31 2022-10-23 thomas };
83 3efd8e31 2022-10-23 thomas STAILQ_HEAD(gotd_ref_updates, gotd_ref_update);
84 3efd8e31 2022-10-23 thomas
85 9148c8a7 2023-01-02 thomas static struct repo_write_client {
86 3efd8e31 2022-10-23 thomas uint32_t id;
87 3efd8e31 2022-10-23 thomas int fd;
88 621b8de0 2023-08-23 thomas int pack_pipe;
89 3efd8e31 2022-10-23 thomas struct got_pack pack;
90 3efd8e31 2022-10-23 thomas uint8_t pack_sha1[SHA1_DIGEST_LENGTH];
91 3efd8e31 2022-10-23 thomas int packidx_fd;
92 3efd8e31 2022-10-23 thomas struct gotd_ref_updates ref_updates;
93 3efd8e31 2022-10-23 thomas int nref_updates;
94 49563dfb 2023-01-28 thomas int nref_del;
95 d98779cd 2023-01-19 thomas int nref_new;
96 f9542c24 2023-04-14 thomas int nref_move;
97 9148c8a7 2023-01-02 thomas } repo_write_client;
98 3efd8e31 2022-10-23 thomas
99 3efd8e31 2022-10-23 thomas static volatile sig_atomic_t sigint_received;
100 3efd8e31 2022-10-23 thomas static volatile sig_atomic_t sigterm_received;
101 3efd8e31 2022-10-23 thomas
102 3efd8e31 2022-10-23 thomas static void
103 3efd8e31 2022-10-23 thomas catch_sigint(int signo)
104 3efd8e31 2022-10-23 thomas {
105 3efd8e31 2022-10-23 thomas sigint_received = 1;
106 3efd8e31 2022-10-23 thomas }
107 3efd8e31 2022-10-23 thomas
108 3efd8e31 2022-10-23 thomas static void
109 3efd8e31 2022-10-23 thomas catch_sigterm(int signo)
110 3efd8e31 2022-10-23 thomas {
111 3efd8e31 2022-10-23 thomas sigterm_received = 1;
112 3efd8e31 2022-10-23 thomas }
113 3efd8e31 2022-10-23 thomas
114 3efd8e31 2022-10-23 thomas static const struct got_error *
115 3efd8e31 2022-10-23 thomas check_cancelled(void *arg)
116 3efd8e31 2022-10-23 thomas {
117 3efd8e31 2022-10-23 thomas if (sigint_received || sigterm_received)
118 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_CANCELLED);
119 3efd8e31 2022-10-23 thomas
120 3efd8e31 2022-10-23 thomas return NULL;
121 3efd8e31 2022-10-23 thomas }
122 3efd8e31 2022-10-23 thomas
123 3efd8e31 2022-10-23 thomas static const struct got_error *
124 3efd8e31 2022-10-23 thomas send_peeled_tag_ref(struct got_reference *ref, struct got_object *obj,
125 3efd8e31 2022-10-23 thomas struct imsgbuf *ibuf)
126 3efd8e31 2022-10-23 thomas {
127 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
128 3efd8e31 2022-10-23 thomas struct got_tag_object *tag;
129 3efd8e31 2022-10-23 thomas size_t namelen, len;
130 3efd8e31 2022-10-23 thomas char *peeled_refname = NULL;
131 3efd8e31 2022-10-23 thomas struct got_object_id *id;
132 3efd8e31 2022-10-23 thomas struct ibuf *wbuf;
133 3efd8e31 2022-10-23 thomas
134 3efd8e31 2022-10-23 thomas err = got_object_tag_open(&tag, repo_write.repo, obj);
135 3efd8e31 2022-10-23 thomas if (err)
136 3efd8e31 2022-10-23 thomas return err;
137 3efd8e31 2022-10-23 thomas
138 3efd8e31 2022-10-23 thomas if (asprintf(&peeled_refname, "%s^{}", got_ref_get_name(ref)) == -1) {
139 3efd8e31 2022-10-23 thomas err = got_error_from_errno("asprintf");
140 3efd8e31 2022-10-23 thomas goto done;
141 3efd8e31 2022-10-23 thomas }
142 3efd8e31 2022-10-23 thomas
143 3efd8e31 2022-10-23 thomas id = got_object_tag_get_object_id(tag);
144 3efd8e31 2022-10-23 thomas namelen = strlen(peeled_refname);
145 3efd8e31 2022-10-23 thomas
146 3efd8e31 2022-10-23 thomas len = sizeof(struct gotd_imsg_ref) + namelen;
147 3efd8e31 2022-10-23 thomas if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
148 3efd8e31 2022-10-23 thomas err = got_error(GOT_ERR_NO_SPACE);
149 3efd8e31 2022-10-23 thomas goto done;
150 3efd8e31 2022-10-23 thomas }
151 3efd8e31 2022-10-23 thomas
152 3efd8e31 2022-10-23 thomas wbuf = imsg_create(ibuf, GOTD_IMSG_REF, PROC_REPO_WRITE,
153 3efd8e31 2022-10-23 thomas repo_write.pid, len);
154 3efd8e31 2022-10-23 thomas if (wbuf == NULL) {
155 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_create REF");
156 3efd8e31 2022-10-23 thomas goto done;
157 3efd8e31 2022-10-23 thomas }
158 3efd8e31 2022-10-23 thomas
159 3efd8e31 2022-10-23 thomas /* Keep in sync with struct gotd_imsg_ref definition. */
160 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1) {
161 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_add REF");
162 3efd8e31 2022-10-23 thomas goto done;
163 3efd8e31 2022-10-23 thomas }
164 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, &namelen, sizeof(namelen)) == -1) {
165 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_add REF");
166 3efd8e31 2022-10-23 thomas goto done;
167 3efd8e31 2022-10-23 thomas }
168 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, peeled_refname, namelen) == -1) {
169 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_add REF");
170 3efd8e31 2022-10-23 thomas goto done;
171 3efd8e31 2022-10-23 thomas }
172 3efd8e31 2022-10-23 thomas
173 3efd8e31 2022-10-23 thomas wbuf->fd = -1;
174 3efd8e31 2022-10-23 thomas imsg_close(ibuf, wbuf);
175 3efd8e31 2022-10-23 thomas done:
176 3efd8e31 2022-10-23 thomas got_object_tag_close(tag);
177 3efd8e31 2022-10-23 thomas return err;
178 3efd8e31 2022-10-23 thomas }
179 3efd8e31 2022-10-23 thomas
180 3efd8e31 2022-10-23 thomas static const struct got_error *
181 3efd8e31 2022-10-23 thomas send_ref(struct got_reference *ref, struct imsgbuf *ibuf)
182 3efd8e31 2022-10-23 thomas {
183 3efd8e31 2022-10-23 thomas const struct got_error *err;
184 3efd8e31 2022-10-23 thomas const char *refname = got_ref_get_name(ref);
185 3efd8e31 2022-10-23 thomas size_t namelen;
186 3efd8e31 2022-10-23 thomas struct got_object_id *id = NULL;
187 3efd8e31 2022-10-23 thomas struct got_object *obj = NULL;
188 3efd8e31 2022-10-23 thomas size_t len;
189 3efd8e31 2022-10-23 thomas struct ibuf *wbuf;
190 3efd8e31 2022-10-23 thomas
191 3efd8e31 2022-10-23 thomas namelen = strlen(refname);
192 3efd8e31 2022-10-23 thomas
193 3efd8e31 2022-10-23 thomas len = sizeof(struct gotd_imsg_ref) + namelen;
194 3efd8e31 2022-10-23 thomas if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
195 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_NO_SPACE);
196 3efd8e31 2022-10-23 thomas
197 3efd8e31 2022-10-23 thomas err = got_ref_resolve(&id, repo_write.repo, ref);
198 3efd8e31 2022-10-23 thomas if (err)
199 3efd8e31 2022-10-23 thomas return err;
200 3efd8e31 2022-10-23 thomas
201 3efd8e31 2022-10-23 thomas wbuf = imsg_create(ibuf, GOTD_IMSG_REF, PROC_REPO_WRITE,
202 3efd8e31 2022-10-23 thomas repo_write.pid, len);
203 3efd8e31 2022-10-23 thomas if (wbuf == NULL) {
204 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_create REF");
205 3efd8e31 2022-10-23 thomas goto done;
206 3efd8e31 2022-10-23 thomas }
207 3efd8e31 2022-10-23 thomas
208 3efd8e31 2022-10-23 thomas /* Keep in sync with struct gotd_imsg_ref definition. */
209 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1)
210 3efd8e31 2022-10-23 thomas return got_error_from_errno("imsg_add REF");
211 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, &namelen, sizeof(namelen)) == -1)
212 3efd8e31 2022-10-23 thomas return got_error_from_errno("imsg_add REF");
213 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, refname, namelen) == -1)
214 3efd8e31 2022-10-23 thomas return got_error_from_errno("imsg_add REF");
215 3efd8e31 2022-10-23 thomas
216 3efd8e31 2022-10-23 thomas wbuf->fd = -1;
217 3efd8e31 2022-10-23 thomas imsg_close(ibuf, wbuf);
218 3efd8e31 2022-10-23 thomas
219 3efd8e31 2022-10-23 thomas err = got_object_open(&obj, repo_write.repo, id);
220 3efd8e31 2022-10-23 thomas if (err)
221 3efd8e31 2022-10-23 thomas goto done;
222 3efd8e31 2022-10-23 thomas if (obj->type == GOT_OBJ_TYPE_TAG)
223 3efd8e31 2022-10-23 thomas err = send_peeled_tag_ref(ref, obj, ibuf);
224 3efd8e31 2022-10-23 thomas done:
225 3efd8e31 2022-10-23 thomas if (obj)
226 3efd8e31 2022-10-23 thomas got_object_close(obj);
227 3efd8e31 2022-10-23 thomas free(id);
228 3efd8e31 2022-10-23 thomas return err;
229 3efd8e31 2022-10-23 thomas }
230 3efd8e31 2022-10-23 thomas
231 3efd8e31 2022-10-23 thomas static const struct got_error *
232 9148c8a7 2023-01-02 thomas list_refs(struct imsg *imsg)
233 3efd8e31 2022-10-23 thomas {
234 3efd8e31 2022-10-23 thomas const struct got_error *err;
235 9148c8a7 2023-01-02 thomas struct repo_write_client *client = &repo_write_client;
236 3efd8e31 2022-10-23 thomas struct got_reflist_head refs;
237 3efd8e31 2022-10-23 thomas struct got_reflist_entry *re;
238 3efd8e31 2022-10-23 thomas struct gotd_imsg_list_refs_internal ireq;
239 3efd8e31 2022-10-23 thomas size_t datalen;
240 3efd8e31 2022-10-23 thomas struct gotd_imsg_reflist irefs;
241 3efd8e31 2022-10-23 thomas struct imsgbuf ibuf;
242 3efd8e31 2022-10-23 thomas int client_fd = imsg->fd;
243 3efd8e31 2022-10-23 thomas
244 3efd8e31 2022-10-23 thomas TAILQ_INIT(&refs);
245 3efd8e31 2022-10-23 thomas
246 3efd8e31 2022-10-23 thomas if (client_fd == -1)
247 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_NO_FD);
248 3efd8e31 2022-10-23 thomas
249 3efd8e31 2022-10-23 thomas datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
250 3efd8e31 2022-10-23 thomas if (datalen != sizeof(ireq))
251 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_LEN);
252 3efd8e31 2022-10-23 thomas memcpy(&ireq, imsg->data, sizeof(ireq));
253 3efd8e31 2022-10-23 thomas
254 9148c8a7 2023-01-02 thomas if (ireq.client_id == 0)
255 9148c8a7 2023-01-02 thomas return got_error(GOT_ERR_CLIENT_ID);
256 9148c8a7 2023-01-02 thomas if (client->id != 0) {
257 9148c8a7 2023-01-02 thomas return got_error_msg(GOT_ERR_CLIENT_ID,
258 9148c8a7 2023-01-02 thomas "duplicate list-refs request");
259 9148c8a7 2023-01-02 thomas }
260 9148c8a7 2023-01-02 thomas client->id = ireq.client_id;
261 9148c8a7 2023-01-02 thomas client->fd = client_fd;
262 9148c8a7 2023-01-02 thomas client->nref_updates = 0;
263 49563dfb 2023-01-28 thomas client->nref_del = 0;
264 d98779cd 2023-01-19 thomas client->nref_new = 0;
265 f9542c24 2023-04-14 thomas client->nref_move = 0;
266 3efd8e31 2022-10-23 thomas
267 3efd8e31 2022-10-23 thomas imsg_init(&ibuf, client_fd);
268 3efd8e31 2022-10-23 thomas
269 3efd8e31 2022-10-23 thomas err = got_ref_list(&refs, repo_write.repo, "",
270 3efd8e31 2022-10-23 thomas got_ref_cmp_by_name, NULL);
271 3efd8e31 2022-10-23 thomas if (err)
272 3efd8e31 2022-10-23 thomas return err;
273 3efd8e31 2022-10-23 thomas
274 3efd8e31 2022-10-23 thomas memset(&irefs, 0, sizeof(irefs));
275 3efd8e31 2022-10-23 thomas TAILQ_FOREACH(re, &refs, entry) {
276 3efd8e31 2022-10-23 thomas struct got_object_id *id;
277 3efd8e31 2022-10-23 thomas int obj_type;
278 3efd8e31 2022-10-23 thomas
279 3efd8e31 2022-10-23 thomas if (got_ref_is_symbolic(re->ref))
280 3efd8e31 2022-10-23 thomas continue;
281 3efd8e31 2022-10-23 thomas
282 3efd8e31 2022-10-23 thomas irefs.nrefs++;
283 3efd8e31 2022-10-23 thomas
284 3efd8e31 2022-10-23 thomas /* Account for a peeled tag refs. */
285 3efd8e31 2022-10-23 thomas err = got_ref_resolve(&id, repo_write.repo, re->ref);
286 3efd8e31 2022-10-23 thomas if (err)
287 3efd8e31 2022-10-23 thomas goto done;
288 8652e561 2023-01-14 thomas err = got_object_get_type(&obj_type, repo_write.repo, id);
289 3efd8e31 2022-10-23 thomas free(id);
290 3efd8e31 2022-10-23 thomas if (err)
291 3efd8e31 2022-10-23 thomas goto done;
292 3efd8e31 2022-10-23 thomas if (obj_type == GOT_OBJ_TYPE_TAG)
293 3efd8e31 2022-10-23 thomas irefs.nrefs++;
294 3efd8e31 2022-10-23 thomas }
295 3efd8e31 2022-10-23 thomas
296 3efd8e31 2022-10-23 thomas if (imsg_compose(&ibuf, GOTD_IMSG_REFLIST, PROC_REPO_WRITE,
297 3efd8e31 2022-10-23 thomas repo_write.pid, -1, &irefs, sizeof(irefs)) == -1) {
298 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_compose REFLIST");
299 3efd8e31 2022-10-23 thomas goto done;
300 3efd8e31 2022-10-23 thomas }
301 3efd8e31 2022-10-23 thomas
302 3efd8e31 2022-10-23 thomas TAILQ_FOREACH(re, &refs, entry) {
303 3efd8e31 2022-10-23 thomas if (got_ref_is_symbolic(re->ref))
304 3efd8e31 2022-10-23 thomas continue;
305 3efd8e31 2022-10-23 thomas err = send_ref(re->ref, &ibuf);
306 3efd8e31 2022-10-23 thomas if (err)
307 3efd8e31 2022-10-23 thomas goto done;
308 3efd8e31 2022-10-23 thomas }
309 3efd8e31 2022-10-23 thomas
310 3efd8e31 2022-10-23 thomas err = gotd_imsg_flush(&ibuf);
311 3efd8e31 2022-10-23 thomas done:
312 3efd8e31 2022-10-23 thomas got_ref_list_free(&refs);
313 3efd8e31 2022-10-23 thomas imsg_clear(&ibuf);
314 3efd8e31 2022-10-23 thomas return err;
315 3efd8e31 2022-10-23 thomas }
316 3efd8e31 2022-10-23 thomas
317 3efd8e31 2022-10-23 thomas static const struct got_error *
318 6d7eb4f7 2023-04-04 thomas validate_namespace(const char *namespace)
319 3efd8e31 2022-10-23 thomas {
320 3efd8e31 2022-10-23 thomas size_t len = strlen(namespace);
321 3efd8e31 2022-10-23 thomas
322 3efd8e31 2022-10-23 thomas if (len < 5 || strncmp("refs/", namespace, 5) != 0 ||
323 3efd8e31 2022-10-23 thomas namespace[len -1] != '/') {
324 3efd8e31 2022-10-23 thomas return got_error_fmt(GOT_ERR_BAD_REF_NAME,
325 3efd8e31 2022-10-23 thomas "reference namespace '%s'", namespace);
326 3efd8e31 2022-10-23 thomas }
327 3efd8e31 2022-10-23 thomas
328 6d7eb4f7 2023-04-04 thomas return NULL;
329 6d7eb4f7 2023-04-04 thomas }
330 6d7eb4f7 2023-04-04 thomas
331 6d7eb4f7 2023-04-04 thomas static const struct got_error *
332 6d7eb4f7 2023-04-04 thomas protect_ref_namespace(const char *refname, const char *namespace)
333 6d7eb4f7 2023-04-04 thomas {
334 6d7eb4f7 2023-04-04 thomas const struct got_error *err;
335 6d7eb4f7 2023-04-04 thomas
336 6d7eb4f7 2023-04-04 thomas err = validate_namespace(namespace);
337 6d7eb4f7 2023-04-04 thomas if (err)
338 6d7eb4f7 2023-04-04 thomas return err;
339 6d7eb4f7 2023-04-04 thomas
340 6d7eb4f7 2023-04-04 thomas if (strncmp(namespace, refname, strlen(namespace)) == 0)
341 3efd8e31 2022-10-23 thomas return got_error_fmt(GOT_ERR_REFS_PROTECTED, "%s", namespace);
342 3efd8e31 2022-10-23 thomas
343 3efd8e31 2022-10-23 thomas return NULL;
344 3efd8e31 2022-10-23 thomas }
345 3efd8e31 2022-10-23 thomas
346 3efd8e31 2022-10-23 thomas static const struct got_error *
347 6d7eb4f7 2023-04-04 thomas verify_object_type(struct got_object_id *id, int expected_obj_type,
348 6d7eb4f7 2023-04-04 thomas struct got_pack *pack, struct got_packidx *packidx)
349 6d7eb4f7 2023-04-04 thomas {
350 6d7eb4f7 2023-04-04 thomas const struct got_error *err;
351 6d7eb4f7 2023-04-04 thomas char hex[SHA1_DIGEST_STRING_LENGTH];
352 6d7eb4f7 2023-04-04 thomas struct got_object *obj;
353 6d7eb4f7 2023-04-04 thomas int idx;
354 6d7eb4f7 2023-04-04 thomas const char *typestr;
355 6d7eb4f7 2023-04-04 thomas
356 6d7eb4f7 2023-04-04 thomas idx = got_packidx_get_object_idx(packidx, id);
357 6d7eb4f7 2023-04-04 thomas if (idx == -1) {
358 6d7eb4f7 2023-04-04 thomas got_sha1_digest_to_str(id->sha1, hex, sizeof(hex));
359 6d7eb4f7 2023-04-04 thomas return got_error_fmt(GOT_ERR_BAD_PACKFILE,
360 6d7eb4f7 2023-04-04 thomas "object %s is missing from pack file", hex);
361 6d7eb4f7 2023-04-04 thomas }
362 6d7eb4f7 2023-04-04 thomas
363 6d7eb4f7 2023-04-04 thomas err = got_object_open_from_packfile(&obj, id, pack, packidx,
364 6d7eb4f7 2023-04-04 thomas idx, repo_write.repo);
365 6d7eb4f7 2023-04-04 thomas if (err)
366 6d7eb4f7 2023-04-04 thomas return err;
367 6d7eb4f7 2023-04-04 thomas
368 6d7eb4f7 2023-04-04 thomas if (obj->type != expected_obj_type) {
369 6d7eb4f7 2023-04-04 thomas got_sha1_digest_to_str(id->sha1, hex, sizeof(hex));
370 6d7eb4f7 2023-04-04 thomas got_object_type_label(&typestr, expected_obj_type);
371 6d7eb4f7 2023-04-04 thomas err = got_error_fmt(GOT_ERR_OBJ_TYPE,
372 6d7eb4f7 2023-04-04 thomas "%s is not pointing at a %s object", hex, typestr);
373 6d7eb4f7 2023-04-04 thomas }
374 6d7eb4f7 2023-04-04 thomas got_object_close(obj);
375 6d7eb4f7 2023-04-04 thomas return err;
376 6d7eb4f7 2023-04-04 thomas }
377 6d7eb4f7 2023-04-04 thomas
378 6d7eb4f7 2023-04-04 thomas static const struct got_error *
379 6d7eb4f7 2023-04-04 thomas protect_tag_namespace(const char *namespace, struct got_pack *pack,
380 6d7eb4f7 2023-04-04 thomas struct got_packidx *packidx, struct gotd_ref_update *ref_update)
381 6d7eb4f7 2023-04-04 thomas {
382 6d7eb4f7 2023-04-04 thomas const struct got_error *err;
383 6d7eb4f7 2023-04-04 thomas
384 6d7eb4f7 2023-04-04 thomas err = validate_namespace(namespace);
385 6d7eb4f7 2023-04-04 thomas if (err)
386 6d7eb4f7 2023-04-04 thomas return err;
387 6d7eb4f7 2023-04-04 thomas
388 6d7eb4f7 2023-04-04 thomas if (strncmp(namespace, got_ref_get_name(ref_update->ref),
389 6d7eb4f7 2023-04-04 thomas strlen(namespace)) != 0)
390 6d7eb4f7 2023-04-04 thomas return NULL;
391 6d7eb4f7 2023-04-04 thomas
392 6d7eb4f7 2023-04-04 thomas if (!ref_update->ref_is_new)
393 6d7eb4f7 2023-04-04 thomas return got_error_fmt(GOT_ERR_REFS_PROTECTED, "%s", namespace);
394 6d7eb4f7 2023-04-04 thomas
395 6d7eb4f7 2023-04-04 thomas return verify_object_type(&ref_update->new_id, GOT_OBJ_TYPE_TAG,
396 6d7eb4f7 2023-04-04 thomas pack, packidx);
397 6d7eb4f7 2023-04-04 thomas }
398 6d7eb4f7 2023-04-04 thomas
399 6d7eb4f7 2023-04-04 thomas static const struct got_error *
400 6d7eb4f7 2023-04-04 thomas protect_require_yca(struct got_object_id *tip_id,
401 6d7eb4f7 2023-04-04 thomas size_t max_commits_to_traverse, struct got_pack *pack,
402 6d7eb4f7 2023-04-04 thomas struct got_packidx *packidx, struct got_reference *ref)
403 6d7eb4f7 2023-04-04 thomas {
404 6d7eb4f7 2023-04-04 thomas const struct got_error *err;
405 6d7eb4f7 2023-04-04 thomas uint8_t *buf = NULL;
406 6d7eb4f7 2023-04-04 thomas size_t len;
407 6d7eb4f7 2023-04-04 thomas struct got_object_id *expected_yca_id = NULL;
408 6d7eb4f7 2023-04-04 thomas struct got_object *obj = NULL;
409 6d7eb4f7 2023-04-04 thomas struct got_commit_object *commit = NULL;
410 6d7eb4f7 2023-04-04 thomas char hex[SHA1_DIGEST_STRING_LENGTH];
411 6d7eb4f7 2023-04-04 thomas const struct got_object_id_queue *parent_ids;
412 6d7eb4f7 2023-04-04 thomas struct got_object_id_queue ids;
413 6d7eb4f7 2023-04-04 thomas struct got_object_qid *pid, *qid;
414 6d7eb4f7 2023-04-04 thomas struct got_object_idset *traversed_set = NULL;
415 6d7eb4f7 2023-04-04 thomas int found_yca = 0, obj_type;
416 6d7eb4f7 2023-04-04 thomas
417 6d7eb4f7 2023-04-04 thomas STAILQ_INIT(&ids);
418 6d7eb4f7 2023-04-04 thomas
419 6d7eb4f7 2023-04-04 thomas err = got_ref_resolve(&expected_yca_id, repo_write.repo, ref);
420 6d7eb4f7 2023-04-04 thomas if (err)
421 6d7eb4f7 2023-04-04 thomas return err;
422 6d7eb4f7 2023-04-04 thomas
423 6d7eb4f7 2023-04-04 thomas err = got_object_get_type(&obj_type, repo_write.repo, expected_yca_id);
424 6d7eb4f7 2023-04-04 thomas if (err)
425 6d7eb4f7 2023-04-04 thomas goto done;
426 6d7eb4f7 2023-04-04 thomas
427 6d7eb4f7 2023-04-04 thomas if (obj_type != GOT_OBJ_TYPE_COMMIT) {
428 6d7eb4f7 2023-04-04 thomas got_sha1_digest_to_str(expected_yca_id->sha1, hex, sizeof(hex));
429 6d7eb4f7 2023-04-04 thomas err = got_error_fmt(GOT_ERR_OBJ_TYPE,
430 6d7eb4f7 2023-04-04 thomas "%s is not pointing at a commit object", hex);
431 6d7eb4f7 2023-04-04 thomas goto done;
432 6d7eb4f7 2023-04-04 thomas }
433 6d7eb4f7 2023-04-04 thomas
434 6d7eb4f7 2023-04-04 thomas traversed_set = got_object_idset_alloc();
435 6d7eb4f7 2023-04-04 thomas if (traversed_set == NULL) {
436 6d7eb4f7 2023-04-04 thomas err = got_error_from_errno("got_object_idset_alloc");
437 6d7eb4f7 2023-04-04 thomas goto done;
438 6d7eb4f7 2023-04-04 thomas }
439 6d7eb4f7 2023-04-04 thomas
440 6d7eb4f7 2023-04-04 thomas err = got_object_qid_alloc(&qid, tip_id);
441 6d7eb4f7 2023-04-04 thomas if (err)
442 6d7eb4f7 2023-04-04 thomas goto done;
443 6d7eb4f7 2023-04-04 thomas STAILQ_INSERT_TAIL(&ids, qid, entry);
444 6d7eb4f7 2023-04-04 thomas while (!STAILQ_EMPTY(&ids)) {
445 6d7eb4f7 2023-04-04 thomas err = check_cancelled(NULL);
446 6d7eb4f7 2023-04-04 thomas if (err)
447 6d7eb4f7 2023-04-04 thomas break;
448 6d7eb4f7 2023-04-04 thomas
449 6d7eb4f7 2023-04-04 thomas qid = STAILQ_FIRST(&ids);
450 6d7eb4f7 2023-04-04 thomas if (got_object_id_cmp(&qid->id, expected_yca_id) == 0) {
451 6d7eb4f7 2023-04-04 thomas found_yca = 1;
452 6d7eb4f7 2023-04-04 thomas break;
453 6d7eb4f7 2023-04-04 thomas }
454 6d7eb4f7 2023-04-04 thomas
455 6d7eb4f7 2023-04-04 thomas if (got_object_idset_num_elements(traversed_set) >=
456 6d7eb4f7 2023-04-04 thomas max_commits_to_traverse)
457 6d7eb4f7 2023-04-04 thomas break;
458 6d7eb4f7 2023-04-04 thomas
459 6d7eb4f7 2023-04-04 thomas if (got_object_idset_contains(traversed_set, &qid->id)) {
460 6d7eb4f7 2023-04-04 thomas STAILQ_REMOVE_HEAD(&ids, entry);
461 6d7eb4f7 2023-04-04 thomas got_object_qid_free(qid);
462 6d7eb4f7 2023-04-04 thomas qid = NULL;
463 6d7eb4f7 2023-04-04 thomas continue;
464 6d7eb4f7 2023-04-04 thomas }
465 6d7eb4f7 2023-04-04 thomas err = got_object_idset_add(traversed_set, &qid->id, NULL);
466 6d7eb4f7 2023-04-04 thomas if (err)
467 6d7eb4f7 2023-04-04 thomas goto done;
468 6d7eb4f7 2023-04-04 thomas
469 6d7eb4f7 2023-04-04 thomas err = got_object_open(&obj, repo_write.repo, &qid->id);
470 6d7eb4f7 2023-04-04 thomas if (err && err->code != GOT_ERR_NO_OBJ)
471 6d7eb4f7 2023-04-04 thomas goto done;
472 6d7eb4f7 2023-04-04 thomas err = NULL;
473 6d7eb4f7 2023-04-04 thomas if (obj) {
474 6d7eb4f7 2023-04-04 thomas err = got_object_commit_open(&commit, repo_write.repo,
475 6d7eb4f7 2023-04-04 thomas obj);
476 6d7eb4f7 2023-04-04 thomas if (err)
477 6d7eb4f7 2023-04-04 thomas goto done;
478 6d7eb4f7 2023-04-04 thomas } else {
479 6d7eb4f7 2023-04-04 thomas int idx;
480 6d7eb4f7 2023-04-04 thomas
481 6d7eb4f7 2023-04-04 thomas idx = got_packidx_get_object_idx(packidx, &qid->id);
482 6d7eb4f7 2023-04-04 thomas if (idx == -1) {
483 6d7eb4f7 2023-04-04 thomas got_sha1_digest_to_str(qid->id.sha1,
484 6d7eb4f7 2023-04-04 thomas hex, sizeof(hex));
485 6d7eb4f7 2023-04-04 thomas err = got_error_fmt(GOT_ERR_BAD_PACKFILE,
486 6d7eb4f7 2023-04-04 thomas "object %s is missing from pack file", hex);
487 6d7eb4f7 2023-04-04 thomas goto done;
488 6d7eb4f7 2023-04-04 thomas }
489 6d7eb4f7 2023-04-04 thomas
490 6d7eb4f7 2023-04-04 thomas err = got_object_open_from_packfile(&obj, &qid->id,
491 6d7eb4f7 2023-04-04 thomas pack, packidx, idx, repo_write.repo);
492 6d7eb4f7 2023-04-04 thomas if (err)
493 6d7eb4f7 2023-04-04 thomas goto done;
494 6d7eb4f7 2023-04-04 thomas
495 6d7eb4f7 2023-04-04 thomas if (obj->type != GOT_OBJ_TYPE_COMMIT) {
496 6d7eb4f7 2023-04-04 thomas got_sha1_digest_to_str(qid->id.sha1,
497 6d7eb4f7 2023-04-04 thomas hex, sizeof(hex));
498 6d7eb4f7 2023-04-04 thomas err = got_error_fmt(GOT_ERR_OBJ_TYPE,
499 6d7eb4f7 2023-04-04 thomas "%s is not pointing at a commit object",
500 6d7eb4f7 2023-04-04 thomas hex);
501 6d7eb4f7 2023-04-04 thomas goto done;
502 6d7eb4f7 2023-04-04 thomas }
503 6d7eb4f7 2023-04-04 thomas
504 6d7eb4f7 2023-04-04 thomas err = got_packfile_extract_object_to_mem(&buf, &len,
505 6d7eb4f7 2023-04-04 thomas obj, pack);
506 6d7eb4f7 2023-04-04 thomas if (err)
507 6d7eb4f7 2023-04-04 thomas goto done;
508 6d7eb4f7 2023-04-04 thomas
509 6d7eb4f7 2023-04-04 thomas err = got_object_parse_commit(&commit, buf, len);
510 6d7eb4f7 2023-04-04 thomas if (err)
511 6d7eb4f7 2023-04-04 thomas goto done;
512 6d7eb4f7 2023-04-04 thomas
513 6d7eb4f7 2023-04-04 thomas free(buf);
514 6d7eb4f7 2023-04-04 thomas buf = NULL;
515 6d7eb4f7 2023-04-04 thomas }
516 6d7eb4f7 2023-04-04 thomas
517 6d7eb4f7 2023-04-04 thomas got_object_close(obj);
518 6d7eb4f7 2023-04-04 thomas obj = NULL;
519 6d7eb4f7 2023-04-04 thomas
520 6d7eb4f7 2023-04-04 thomas STAILQ_REMOVE_HEAD(&ids, entry);
521 6d7eb4f7 2023-04-04 thomas got_object_qid_free(qid);
522 6d7eb4f7 2023-04-04 thomas qid = NULL;
523 6d7eb4f7 2023-04-04 thomas
524 6d7eb4f7 2023-04-04 thomas if (got_object_commit_get_nparents(commit) == 0)
525 6d7eb4f7 2023-04-04 thomas break;
526 6d7eb4f7 2023-04-04 thomas
527 6d7eb4f7 2023-04-04 thomas parent_ids = got_object_commit_get_parent_ids(commit);
528 6d7eb4f7 2023-04-04 thomas STAILQ_FOREACH(pid, parent_ids, entry) {
529 6d7eb4f7 2023-04-04 thomas err = check_cancelled(NULL);
530 6d7eb4f7 2023-04-04 thomas if (err)
531 6d7eb4f7 2023-04-04 thomas goto done;
532 6d7eb4f7 2023-04-04 thomas err = got_object_qid_alloc(&qid, &pid->id);
533 6d7eb4f7 2023-04-04 thomas if (err)
534 6d7eb4f7 2023-04-04 thomas goto done;
535 6d7eb4f7 2023-04-04 thomas STAILQ_INSERT_TAIL(&ids, qid, entry);
536 6d7eb4f7 2023-04-04 thomas qid = NULL;
537 6d7eb4f7 2023-04-04 thomas }
538 6d7eb4f7 2023-04-04 thomas got_object_commit_close(commit);
539 6d7eb4f7 2023-04-04 thomas commit = NULL;
540 6d7eb4f7 2023-04-04 thomas }
541 6d7eb4f7 2023-04-04 thomas
542 6d7eb4f7 2023-04-04 thomas if (!found_yca) {
543 6d7eb4f7 2023-04-04 thomas err = got_error_fmt(GOT_ERR_REF_PROTECTED, "%s",
544 6d7eb4f7 2023-04-04 thomas got_ref_get_name(ref));
545 6d7eb4f7 2023-04-04 thomas }
546 6d7eb4f7 2023-04-04 thomas done:
547 6d7eb4f7 2023-04-04 thomas got_object_idset_free(traversed_set);
548 6d7eb4f7 2023-04-04 thomas got_object_id_queue_free(&ids);
549 6d7eb4f7 2023-04-04 thomas free(buf);
550 6d7eb4f7 2023-04-04 thomas if (obj)
551 6d7eb4f7 2023-04-04 thomas got_object_close(obj);
552 6d7eb4f7 2023-04-04 thomas if (commit)
553 6d7eb4f7 2023-04-04 thomas got_object_commit_close(commit);
554 6d7eb4f7 2023-04-04 thomas free(expected_yca_id);
555 6d7eb4f7 2023-04-04 thomas return err;
556 6d7eb4f7 2023-04-04 thomas }
557 6d7eb4f7 2023-04-04 thomas
558 6d7eb4f7 2023-04-04 thomas static const struct got_error *
559 6d7eb4f7 2023-04-04 thomas protect_branch_namespace(const char *namespace, struct got_pack *pack,
560 6d7eb4f7 2023-04-04 thomas struct got_packidx *packidx, struct gotd_ref_update *ref_update)
561 6d7eb4f7 2023-04-04 thomas {
562 6d7eb4f7 2023-04-04 thomas const struct got_error *err;
563 6d7eb4f7 2023-04-04 thomas
564 6d7eb4f7 2023-04-04 thomas err = validate_namespace(namespace);
565 6d7eb4f7 2023-04-04 thomas if (err)
566 6d7eb4f7 2023-04-04 thomas return err;
567 6d7eb4f7 2023-04-04 thomas
568 6d7eb4f7 2023-04-04 thomas if (strncmp(namespace, got_ref_get_name(ref_update->ref),
569 6d7eb4f7 2023-04-04 thomas strlen(namespace)) != 0)
570 6d7eb4f7 2023-04-04 thomas return NULL;
571 6d7eb4f7 2023-04-04 thomas
572 6d7eb4f7 2023-04-04 thomas if (ref_update->ref_is_new) {
573 6d7eb4f7 2023-04-04 thomas return verify_object_type(&ref_update->new_id,
574 6d7eb4f7 2023-04-04 thomas GOT_OBJ_TYPE_COMMIT, pack, packidx);
575 6d7eb4f7 2023-04-04 thomas }
576 6d7eb4f7 2023-04-04 thomas
577 6d7eb4f7 2023-04-04 thomas return protect_require_yca(&ref_update->new_id,
578 6d7eb4f7 2023-04-04 thomas be32toh(packidx->hdr.fanout_table[0xff]), pack, packidx,
579 6d7eb4f7 2023-04-04 thomas ref_update->ref);
580 6d7eb4f7 2023-04-04 thomas }
581 6d7eb4f7 2023-04-04 thomas
582 6d7eb4f7 2023-04-04 thomas static const struct got_error *
583 6d7eb4f7 2023-04-04 thomas protect_branch(const char *refname, struct got_pack *pack,
584 6d7eb4f7 2023-04-04 thomas struct got_packidx *packidx, struct gotd_ref_update *ref_update)
585 6d7eb4f7 2023-04-04 thomas {
586 6d7eb4f7 2023-04-04 thomas if (strcmp(refname, got_ref_get_name(ref_update->ref)) != 0)
587 6d7eb4f7 2023-04-04 thomas return NULL;
588 6d7eb4f7 2023-04-04 thomas
589 6d7eb4f7 2023-04-04 thomas /* Always allow new branches to be created. */
590 6d7eb4f7 2023-04-04 thomas if (ref_update->ref_is_new) {
591 6d7eb4f7 2023-04-04 thomas return verify_object_type(&ref_update->new_id,
592 6d7eb4f7 2023-04-04 thomas GOT_OBJ_TYPE_COMMIT, pack, packidx);
593 6d7eb4f7 2023-04-04 thomas }
594 6d7eb4f7 2023-04-04 thomas
595 6d7eb4f7 2023-04-04 thomas return protect_require_yca(&ref_update->new_id,
596 6d7eb4f7 2023-04-04 thomas be32toh(packidx->hdr.fanout_table[0xff]), pack, packidx,
597 6d7eb4f7 2023-04-04 thomas ref_update->ref);
598 6d7eb4f7 2023-04-04 thomas }
599 6d7eb4f7 2023-04-04 thomas
600 6d7eb4f7 2023-04-04 thomas static const struct got_error *
601 9148c8a7 2023-01-02 thomas recv_ref_update(struct imsg *imsg)
602 3efd8e31 2022-10-23 thomas {
603 49563dfb 2023-01-28 thomas static const char zero_id[SHA1_DIGEST_LENGTH];
604 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
605 9148c8a7 2023-01-02 thomas struct repo_write_client *client = &repo_write_client;
606 3efd8e31 2022-10-23 thomas struct gotd_imsg_ref_update iref;
607 3efd8e31 2022-10-23 thomas size_t datalen;
608 3efd8e31 2022-10-23 thomas char *refname = NULL;
609 3efd8e31 2022-10-23 thomas struct got_reference *ref = NULL;
610 3efd8e31 2022-10-23 thomas struct got_object_id *id = NULL;
611 3efd8e31 2022-10-23 thomas struct imsgbuf ibuf;
612 3efd8e31 2022-10-23 thomas struct gotd_ref_update *ref_update = NULL;
613 3efd8e31 2022-10-23 thomas
614 3efd8e31 2022-10-23 thomas log_debug("ref-update received");
615 3efd8e31 2022-10-23 thomas
616 3efd8e31 2022-10-23 thomas datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
617 3efd8e31 2022-10-23 thomas if (datalen < sizeof(iref))
618 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_LEN);
619 3efd8e31 2022-10-23 thomas memcpy(&iref, imsg->data, sizeof(iref));
620 3efd8e31 2022-10-23 thomas if (datalen != sizeof(iref) + iref.name_len)
621 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_LEN);
622 3efd8e31 2022-10-23 thomas
623 9148c8a7 2023-01-02 thomas imsg_init(&ibuf, client->fd);
624 3efd8e31 2022-10-23 thomas
625 fcbb06bf 2023-01-14 thomas refname = strndup(imsg->data + sizeof(iref), iref.name_len);
626 3efd8e31 2022-10-23 thomas if (refname == NULL)
627 fcbb06bf 2023-01-14 thomas return got_error_from_errno("strndup");
628 3efd8e31 2022-10-23 thomas
629 3efd8e31 2022-10-23 thomas ref_update = calloc(1, sizeof(*ref_update));
630 3efd8e31 2022-10-23 thomas if (ref_update == NULL) {
631 3efd8e31 2022-10-23 thomas err = got_error_from_errno("malloc");
632 3efd8e31 2022-10-23 thomas goto done;
633 3efd8e31 2022-10-23 thomas }
634 3efd8e31 2022-10-23 thomas
635 3efd8e31 2022-10-23 thomas memcpy(ref_update->old_id.sha1, iref.old_id, SHA1_DIGEST_LENGTH);
636 3efd8e31 2022-10-23 thomas memcpy(ref_update->new_id.sha1, iref.new_id, SHA1_DIGEST_LENGTH);
637 3efd8e31 2022-10-23 thomas
638 3efd8e31 2022-10-23 thomas err = got_ref_open(&ref, repo_write.repo, refname, 0);
639 3efd8e31 2022-10-23 thomas if (err) {
640 3efd8e31 2022-10-23 thomas if (err->code != GOT_ERR_NOT_REF)
641 3efd8e31 2022-10-23 thomas goto done;
642 6d7eb4f7 2023-04-04 thomas if (memcmp(ref_update->new_id.sha1,
643 6d7eb4f7 2023-04-04 thomas zero_id, sizeof(zero_id)) == 0) {
644 6d7eb4f7 2023-04-04 thomas err = got_error_fmt(GOT_ERR_BAD_OBJ_ID,
645 6d7eb4f7 2023-04-04 thomas "%s", refname);
646 6d7eb4f7 2023-04-04 thomas goto done;
647 6d7eb4f7 2023-04-04 thomas }
648 3efd8e31 2022-10-23 thomas err = got_ref_alloc(&ref, refname, &ref_update->new_id);
649 3efd8e31 2022-10-23 thomas if (err)
650 3efd8e31 2022-10-23 thomas goto done;
651 3efd8e31 2022-10-23 thomas ref_update->ref_is_new = 1;
652 d98779cd 2023-01-19 thomas client->nref_new++;
653 3efd8e31 2022-10-23 thomas }
654 3efd8e31 2022-10-23 thomas if (got_ref_is_symbolic(ref)) {
655 3efd8e31 2022-10-23 thomas err = got_error_fmt(GOT_ERR_BAD_REF_TYPE,
656 3efd8e31 2022-10-23 thomas "'%s' is a symbolic reference and cannot "
657 3efd8e31 2022-10-23 thomas "be updated", got_ref_get_name(ref));
658 3efd8e31 2022-10-23 thomas goto done;
659 3efd8e31 2022-10-23 thomas }
660 3efd8e31 2022-10-23 thomas if (strncmp("refs/", got_ref_get_name(ref), 5) != 0) {
661 3efd8e31 2022-10-23 thomas err = got_error_fmt(GOT_ERR_BAD_REF_NAME,
662 3efd8e31 2022-10-23 thomas "%s: does not begin with 'refs/'",
663 3efd8e31 2022-10-23 thomas got_ref_get_name(ref));
664 3efd8e31 2022-10-23 thomas goto done;
665 3efd8e31 2022-10-23 thomas }
666 3efd8e31 2022-10-23 thomas
667 6d7eb4f7 2023-04-04 thomas err = protect_ref_namespace(got_ref_get_name(ref), "refs/got/");
668 3efd8e31 2022-10-23 thomas if (err)
669 3efd8e31 2022-10-23 thomas goto done;
670 6d7eb4f7 2023-04-04 thomas err = protect_ref_namespace(got_ref_get_name(ref), "refs/remotes/");
671 3efd8e31 2022-10-23 thomas if (err)
672 3efd8e31 2022-10-23 thomas goto done;
673 3efd8e31 2022-10-23 thomas
674 3efd8e31 2022-10-23 thomas if (!ref_update->ref_is_new) {
675 3efd8e31 2022-10-23 thomas /*
676 3efd8e31 2022-10-23 thomas * Ensure the client's idea of this update is still valid.
677 3efd8e31 2022-10-23 thomas * At this point we can only return an error, to prevent
678 3efd8e31 2022-10-23 thomas * the client from uploading a pack file which will likely
679 3efd8e31 2022-10-23 thomas * have to be discarded.
680 3efd8e31 2022-10-23 thomas */
681 3efd8e31 2022-10-23 thomas err = got_ref_resolve(&id, repo_write.repo, ref);
682 3efd8e31 2022-10-23 thomas if (err)
683 3efd8e31 2022-10-23 thomas goto done;
684 3efd8e31 2022-10-23 thomas
685 3efd8e31 2022-10-23 thomas if (got_object_id_cmp(id, &ref_update->old_id) != 0) {
686 3efd8e31 2022-10-23 thomas err = got_error_fmt(GOT_ERR_REF_BUSY,
687 3efd8e31 2022-10-23 thomas "%s has been modified by someone else "
688 3efd8e31 2022-10-23 thomas "while transaction was in progress",
689 3efd8e31 2022-10-23 thomas got_ref_get_name(ref));
690 3efd8e31 2022-10-23 thomas goto done;
691 3efd8e31 2022-10-23 thomas }
692 3efd8e31 2022-10-23 thomas }
693 3efd8e31 2022-10-23 thomas
694 3efd8e31 2022-10-23 thomas gotd_imsg_send_ack(&ref_update->new_id, &ibuf, PROC_REPO_WRITE,
695 3efd8e31 2022-10-23 thomas repo_write.pid);
696 3efd8e31 2022-10-23 thomas
697 3efd8e31 2022-10-23 thomas ref_update->ref = ref;
698 49563dfb 2023-01-28 thomas if (memcmp(ref_update->new_id.sha1, zero_id, sizeof(zero_id)) == 0) {
699 49563dfb 2023-01-28 thomas ref_update->delete_ref = 1;
700 49563dfb 2023-01-28 thomas client->nref_del++;
701 49563dfb 2023-01-28 thomas }
702 9148c8a7 2023-01-02 thomas STAILQ_INSERT_HEAD(&client->ref_updates, ref_update, entry);
703 9148c8a7 2023-01-02 thomas client->nref_updates++;
704 3efd8e31 2022-10-23 thomas ref = NULL;
705 3efd8e31 2022-10-23 thomas ref_update = NULL;
706 3efd8e31 2022-10-23 thomas done:
707 3efd8e31 2022-10-23 thomas if (ref)
708 3efd8e31 2022-10-23 thomas got_ref_close(ref);
709 3efd8e31 2022-10-23 thomas free(ref_update);
710 3efd8e31 2022-10-23 thomas free(refname);
711 3efd8e31 2022-10-23 thomas free(id);
712 3efd8e31 2022-10-23 thomas return err;
713 3efd8e31 2022-10-23 thomas }
714 3efd8e31 2022-10-23 thomas
715 3efd8e31 2022-10-23 thomas static const struct got_error *
716 3efd8e31 2022-10-23 thomas pack_index_progress(void *arg, uint32_t nobj_total, uint32_t nobj_indexed,
717 3efd8e31 2022-10-23 thomas uint32_t nobj_loose, uint32_t nobj_resolved)
718 3efd8e31 2022-10-23 thomas {
719 3efd8e31 2022-10-23 thomas int p_indexed = 0, p_resolved = 0;
720 3efd8e31 2022-10-23 thomas int nobj_delta = nobj_total - nobj_loose;
721 3efd8e31 2022-10-23 thomas
722 3efd8e31 2022-10-23 thomas if (nobj_total > 0)
723 3efd8e31 2022-10-23 thomas p_indexed = (nobj_indexed * 100) / nobj_total;
724 3efd8e31 2022-10-23 thomas
725 3efd8e31 2022-10-23 thomas if (nobj_delta > 0)
726 3efd8e31 2022-10-23 thomas p_resolved = (nobj_resolved * 100) / nobj_delta;
727 3efd8e31 2022-10-23 thomas
728 3efd8e31 2022-10-23 thomas if (p_resolved > 0) {
729 3efd8e31 2022-10-23 thomas log_debug("indexing %d objects %d%%; resolving %d deltas %d%%",
730 3efd8e31 2022-10-23 thomas nobj_total, p_indexed, nobj_delta, p_resolved);
731 3efd8e31 2022-10-23 thomas } else
732 3efd8e31 2022-10-23 thomas log_debug("indexing %d objects %d%%", nobj_total, p_indexed);
733 3efd8e31 2022-10-23 thomas
734 3efd8e31 2022-10-23 thomas return NULL;
735 3efd8e31 2022-10-23 thomas }
736 3efd8e31 2022-10-23 thomas
737 3efd8e31 2022-10-23 thomas static const struct got_error *
738 3efd8e31 2022-10-23 thomas read_more_pack_stream(int infd, BUF *buf, size_t minsize)
739 3efd8e31 2022-10-23 thomas {
740 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
741 3efd8e31 2022-10-23 thomas uint8_t readahead[65536];
742 3efd8e31 2022-10-23 thomas size_t have, newlen;
743 3efd8e31 2022-10-23 thomas
744 3efd8e31 2022-10-23 thomas err = got_poll_read_full(infd, &have,
745 3efd8e31 2022-10-23 thomas readahead, sizeof(readahead), minsize);
746 3efd8e31 2022-10-23 thomas if (err)
747 3efd8e31 2022-10-23 thomas return err;
748 3efd8e31 2022-10-23 thomas
749 3efd8e31 2022-10-23 thomas err = buf_append(&newlen, buf, readahead, have);
750 3efd8e31 2022-10-23 thomas if (err)
751 3efd8e31 2022-10-23 thomas return err;
752 8652e561 2023-01-14 thomas return NULL;
753 3efd8e31 2022-10-23 thomas }
754 3efd8e31 2022-10-23 thomas
755 3efd8e31 2022-10-23 thomas static const struct got_error *
756 3efd8e31 2022-10-23 thomas copy_object_type_and_size(uint8_t *type, uint64_t *size, int infd, int outfd,
757 b16893ba 2023-02-24 thomas off_t *outsize, BUF *buf, size_t *buf_pos, struct got_hash *ctx)
758 3efd8e31 2022-10-23 thomas {
759 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
760 3efd8e31 2022-10-23 thomas uint8_t t = 0;
761 3efd8e31 2022-10-23 thomas uint64_t s = 0;
762 3efd8e31 2022-10-23 thomas uint8_t sizebuf[8];
763 3efd8e31 2022-10-23 thomas size_t i = 0;
764 3efd8e31 2022-10-23 thomas off_t obj_offset = *outsize;
765 3efd8e31 2022-10-23 thomas
766 3efd8e31 2022-10-23 thomas do {
767 3efd8e31 2022-10-23 thomas /* We do not support size values which don't fit in 64 bit. */
768 3efd8e31 2022-10-23 thomas if (i > 9)
769 3efd8e31 2022-10-23 thomas return got_error_fmt(GOT_ERR_OBJ_TOO_LARGE,
770 fe3b5495 2022-10-25 thomas "packfile offset %lld", (long long)obj_offset);
771 3efd8e31 2022-10-23 thomas
772 3efd8e31 2022-10-23 thomas if (buf_len(buf) - *buf_pos < sizeof(sizebuf[0])) {
773 3efd8e31 2022-10-23 thomas err = read_more_pack_stream(infd, buf,
774 3efd8e31 2022-10-23 thomas sizeof(sizebuf[0]));
775 3efd8e31 2022-10-23 thomas if (err)
776 3efd8e31 2022-10-23 thomas return err;
777 3efd8e31 2022-10-23 thomas }
778 3efd8e31 2022-10-23 thomas
779 3efd8e31 2022-10-23 thomas sizebuf[i] = buf_getc(buf, *buf_pos);
780 3efd8e31 2022-10-23 thomas *buf_pos += sizeof(sizebuf[i]);
781 3efd8e31 2022-10-23 thomas
782 3efd8e31 2022-10-23 thomas if (i == 0) {
783 3efd8e31 2022-10-23 thomas t = (sizebuf[i] & GOT_PACK_OBJ_SIZE0_TYPE_MASK) >>
784 3efd8e31 2022-10-23 thomas GOT_PACK_OBJ_SIZE0_TYPE_MASK_SHIFT;
785 3efd8e31 2022-10-23 thomas s = (sizebuf[i] & GOT_PACK_OBJ_SIZE0_VAL_MASK);
786 3efd8e31 2022-10-23 thomas } else {
787 3efd8e31 2022-10-23 thomas size_t shift = 4 + 7 * (i - 1);
788 3efd8e31 2022-10-23 thomas s |= ((sizebuf[i] & GOT_PACK_OBJ_SIZE_VAL_MASK) <<
789 3efd8e31 2022-10-23 thomas shift);
790 3efd8e31 2022-10-23 thomas }
791 3efd8e31 2022-10-23 thomas i++;
792 3efd8e31 2022-10-23 thomas } while (sizebuf[i - 1] & GOT_PACK_OBJ_SIZE_MORE);
793 3efd8e31 2022-10-23 thomas
794 3efd8e31 2022-10-23 thomas err = got_pack_hwrite(outfd, sizebuf, i, ctx);
795 3efd8e31 2022-10-23 thomas if (err)
796 3efd8e31 2022-10-23 thomas return err;
797 3efd8e31 2022-10-23 thomas *outsize += i;
798 3efd8e31 2022-10-23 thomas
799 3efd8e31 2022-10-23 thomas *type = t;
800 3efd8e31 2022-10-23 thomas *size = s;
801 3efd8e31 2022-10-23 thomas return NULL;
802 3efd8e31 2022-10-23 thomas }
803 3efd8e31 2022-10-23 thomas
804 3efd8e31 2022-10-23 thomas static const struct got_error *
805 3efd8e31 2022-10-23 thomas copy_ref_delta(int infd, int outfd, off_t *outsize, BUF *buf, size_t *buf_pos,
806 b16893ba 2023-02-24 thomas struct got_hash *ctx)
807 3efd8e31 2022-10-23 thomas {
808 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
809 3efd8e31 2022-10-23 thomas size_t remain = buf_len(buf) - *buf_pos;
810 3efd8e31 2022-10-23 thomas
811 3efd8e31 2022-10-23 thomas if (remain < SHA1_DIGEST_LENGTH) {
812 3efd8e31 2022-10-23 thomas err = read_more_pack_stream(infd, buf,
813 3efd8e31 2022-10-23 thomas SHA1_DIGEST_LENGTH - remain);
814 3efd8e31 2022-10-23 thomas if (err)
815 3efd8e31 2022-10-23 thomas return err;
816 3efd8e31 2022-10-23 thomas }
817 3efd8e31 2022-10-23 thomas
818 3efd8e31 2022-10-23 thomas err = got_pack_hwrite(outfd, buf_get(buf) + *buf_pos,
819 3efd8e31 2022-10-23 thomas SHA1_DIGEST_LENGTH, ctx);
820 3efd8e31 2022-10-23 thomas if (err)
821 3efd8e31 2022-10-23 thomas return err;
822 3efd8e31 2022-10-23 thomas
823 3efd8e31 2022-10-23 thomas *buf_pos += SHA1_DIGEST_LENGTH;
824 3efd8e31 2022-10-23 thomas return NULL;
825 3efd8e31 2022-10-23 thomas }
826 3efd8e31 2022-10-23 thomas
827 3efd8e31 2022-10-23 thomas static const struct got_error *
828 3efd8e31 2022-10-23 thomas copy_offset_delta(int infd, int outfd, off_t *outsize, BUF *buf, size_t *buf_pos,
829 b16893ba 2023-02-24 thomas struct got_hash *ctx)
830 3efd8e31 2022-10-23 thomas {
831 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
832 3efd8e31 2022-10-23 thomas uint64_t o = 0;
833 3efd8e31 2022-10-23 thomas uint8_t offbuf[8];
834 3efd8e31 2022-10-23 thomas size_t i = 0;
835 3efd8e31 2022-10-23 thomas off_t obj_offset = *outsize;
836 3efd8e31 2022-10-23 thomas
837 3efd8e31 2022-10-23 thomas do {
838 3efd8e31 2022-10-23 thomas /* We do not support offset values which don't fit in 64 bit. */
839 3efd8e31 2022-10-23 thomas if (i > 8)
840 3efd8e31 2022-10-23 thomas return got_error_fmt(GOT_ERR_OBJ_TOO_LARGE,
841 fe3b5495 2022-10-25 thomas "packfile offset %lld", (long long)obj_offset);
842 3efd8e31 2022-10-23 thomas
843 3efd8e31 2022-10-23 thomas if (buf_len(buf) - *buf_pos < sizeof(offbuf[0])) {
844 3efd8e31 2022-10-23 thomas err = read_more_pack_stream(infd, buf,
845 3efd8e31 2022-10-23 thomas sizeof(offbuf[0]));
846 3efd8e31 2022-10-23 thomas if (err)
847 3efd8e31 2022-10-23 thomas return err;
848 3efd8e31 2022-10-23 thomas }
849 3efd8e31 2022-10-23 thomas
850 3efd8e31 2022-10-23 thomas offbuf[i] = buf_getc(buf, *buf_pos);
851 3efd8e31 2022-10-23 thomas *buf_pos += sizeof(offbuf[i]);
852 3efd8e31 2022-10-23 thomas
853 3efd8e31 2022-10-23 thomas if (i == 0)
854 3efd8e31 2022-10-23 thomas o = (offbuf[i] & GOT_PACK_OBJ_DELTA_OFF_VAL_MASK);
855 3efd8e31 2022-10-23 thomas else {
856 3efd8e31 2022-10-23 thomas o++;
857 3efd8e31 2022-10-23 thomas o <<= 7;
858 3efd8e31 2022-10-23 thomas o += (offbuf[i] & GOT_PACK_OBJ_DELTA_OFF_VAL_MASK);
859 3efd8e31 2022-10-23 thomas }
860 3efd8e31 2022-10-23 thomas i++;
861 3efd8e31 2022-10-23 thomas } while (offbuf[i - 1] & GOT_PACK_OBJ_DELTA_OFF_MORE);
862 3efd8e31 2022-10-23 thomas
863 3efd8e31 2022-10-23 thomas if (o < sizeof(struct got_packfile_hdr) || o > *outsize)
864 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PACK_OFFSET);
865 3efd8e31 2022-10-23 thomas
866 3efd8e31 2022-10-23 thomas err = got_pack_hwrite(outfd, offbuf, i, ctx);
867 3efd8e31 2022-10-23 thomas if (err)
868 3efd8e31 2022-10-23 thomas return err;
869 3efd8e31 2022-10-23 thomas
870 3efd8e31 2022-10-23 thomas *outsize += i;
871 3efd8e31 2022-10-23 thomas return NULL;
872 3efd8e31 2022-10-23 thomas }
873 3efd8e31 2022-10-23 thomas
874 3efd8e31 2022-10-23 thomas static const struct got_error *
875 3efd8e31 2022-10-23 thomas copy_zstream(int infd, int outfd, off_t *outsize, BUF *buf, size_t *buf_pos,
876 b16893ba 2023-02-24 thomas struct got_hash *ctx)
877 3efd8e31 2022-10-23 thomas {
878 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
879 3efd8e31 2022-10-23 thomas z_stream z;
880 3efd8e31 2022-10-23 thomas int zret;
881 3efd8e31 2022-10-23 thomas char voidbuf[1024];
882 3efd8e31 2022-10-23 thomas size_t consumed_total = 0;
883 3efd8e31 2022-10-23 thomas off_t zstream_offset = *outsize;
884 3efd8e31 2022-10-23 thomas
885 3efd8e31 2022-10-23 thomas memset(&z, 0, sizeof(z));
886 3efd8e31 2022-10-23 thomas
887 3efd8e31 2022-10-23 thomas z.zalloc = Z_NULL;
888 3efd8e31 2022-10-23 thomas z.zfree = Z_NULL;
889 3efd8e31 2022-10-23 thomas zret = inflateInit(&z);
890 3efd8e31 2022-10-23 thomas if (zret != Z_OK) {
891 3efd8e31 2022-10-23 thomas if (zret == Z_ERRNO)
892 3efd8e31 2022-10-23 thomas return got_error_from_errno("inflateInit");
893 3efd8e31 2022-10-23 thomas if (zret == Z_MEM_ERROR) {
894 3efd8e31 2022-10-23 thomas errno = ENOMEM;
895 3efd8e31 2022-10-23 thomas return got_error_from_errno("inflateInit");
896 3efd8e31 2022-10-23 thomas }
897 3efd8e31 2022-10-23 thomas return got_error_msg(GOT_ERR_DECOMPRESSION,
898 3efd8e31 2022-10-23 thomas "inflateInit failed");
899 3efd8e31 2022-10-23 thomas }
900 3efd8e31 2022-10-23 thomas
901 3efd8e31 2022-10-23 thomas while (zret != Z_STREAM_END) {
902 3efd8e31 2022-10-23 thomas size_t last_total_in, consumed;
903 3efd8e31 2022-10-23 thomas
904 3efd8e31 2022-10-23 thomas /*
905 3efd8e31 2022-10-23 thomas * Decompress into the void. Object data will be parsed
906 3efd8e31 2022-10-23 thomas * later, when the pack file is indexed. For now, we just
907 3efd8e31 2022-10-23 thomas * want to locate the end of the compressed stream.
908 3efd8e31 2022-10-23 thomas */
909 3efd8e31 2022-10-23 thomas while (zret != Z_STREAM_END && buf_len(buf) - *buf_pos > 0) {
910 3efd8e31 2022-10-23 thomas last_total_in = z.total_in;
911 3efd8e31 2022-10-23 thomas z.next_in = buf_get(buf) + *buf_pos;
912 3efd8e31 2022-10-23 thomas z.avail_in = buf_len(buf) - *buf_pos;
913 3efd8e31 2022-10-23 thomas z.next_out = voidbuf;
914 3efd8e31 2022-10-23 thomas z.avail_out = sizeof(voidbuf);
915 3efd8e31 2022-10-23 thomas
916 3efd8e31 2022-10-23 thomas zret = inflate(&z, Z_SYNC_FLUSH);
917 3efd8e31 2022-10-23 thomas if (zret != Z_OK && zret != Z_BUF_ERROR &&
918 3efd8e31 2022-10-23 thomas zret != Z_STREAM_END) {
919 3efd8e31 2022-10-23 thomas err = got_error_fmt(GOT_ERR_DECOMPRESSION,
920 fe3b5495 2022-10-25 thomas "packfile offset %lld",
921 fe3b5495 2022-10-25 thomas (long long)zstream_offset);
922 3efd8e31 2022-10-23 thomas goto done;
923 3efd8e31 2022-10-23 thomas }
924 3efd8e31 2022-10-23 thomas consumed = z.total_in - last_total_in;
925 3efd8e31 2022-10-23 thomas
926 3efd8e31 2022-10-23 thomas err = got_pack_hwrite(outfd, buf_get(buf) + *buf_pos,
927 3efd8e31 2022-10-23 thomas consumed, ctx);
928 3efd8e31 2022-10-23 thomas if (err)
929 3efd8e31 2022-10-23 thomas goto done;
930 3efd8e31 2022-10-23 thomas
931 3efd8e31 2022-10-23 thomas err = buf_discard(buf, *buf_pos + consumed);
932 3efd8e31 2022-10-23 thomas if (err)
933 3efd8e31 2022-10-23 thomas goto done;
934 3efd8e31 2022-10-23 thomas *buf_pos = 0;
935 3efd8e31 2022-10-23 thomas
936 3efd8e31 2022-10-23 thomas consumed_total += consumed;
937 3efd8e31 2022-10-23 thomas }
938 3efd8e31 2022-10-23 thomas
939 3efd8e31 2022-10-23 thomas if (zret != Z_STREAM_END) {
940 3efd8e31 2022-10-23 thomas err = read_more_pack_stream(infd, buf, 1);
941 3efd8e31 2022-10-23 thomas if (err)
942 3efd8e31 2022-10-23 thomas goto done;
943 3efd8e31 2022-10-23 thomas }
944 3efd8e31 2022-10-23 thomas }
945 3efd8e31 2022-10-23 thomas
946 3efd8e31 2022-10-23 thomas if (err == NULL)
947 3efd8e31 2022-10-23 thomas *outsize += consumed_total;
948 3efd8e31 2022-10-23 thomas done:
949 3efd8e31 2022-10-23 thomas inflateEnd(&z);
950 3efd8e31 2022-10-23 thomas return err;
951 3efd8e31 2022-10-23 thomas }
952 3efd8e31 2022-10-23 thomas
953 3efd8e31 2022-10-23 thomas static const struct got_error *
954 3efd8e31 2022-10-23 thomas validate_object_type(int obj_type)
955 3efd8e31 2022-10-23 thomas {
956 3efd8e31 2022-10-23 thomas switch (obj_type) {
957 3efd8e31 2022-10-23 thomas case GOT_OBJ_TYPE_BLOB:
958 3efd8e31 2022-10-23 thomas case GOT_OBJ_TYPE_COMMIT:
959 3efd8e31 2022-10-23 thomas case GOT_OBJ_TYPE_TREE:
960 3efd8e31 2022-10-23 thomas case GOT_OBJ_TYPE_TAG:
961 3efd8e31 2022-10-23 thomas case GOT_OBJ_TYPE_REF_DELTA:
962 3efd8e31 2022-10-23 thomas case GOT_OBJ_TYPE_OFFSET_DELTA:
963 3efd8e31 2022-10-23 thomas return NULL;
964 3efd8e31 2022-10-23 thomas default:
965 3efd8e31 2022-10-23 thomas break;
966 3efd8e31 2022-10-23 thomas }
967 3efd8e31 2022-10-23 thomas
968 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_OBJ_TYPE);
969 3efd8e31 2022-10-23 thomas }
970 3efd8e31 2022-10-23 thomas
971 3efd8e31 2022-10-23 thomas static const struct got_error *
972 f9542c24 2023-04-14 thomas ensure_all_objects_exist_locally(struct gotd_ref_updates *ref_updates)
973 f9542c24 2023-04-14 thomas {
974 f9542c24 2023-04-14 thomas const struct got_error *err = NULL;
975 f9542c24 2023-04-14 thomas struct gotd_ref_update *ref_update;
976 f9542c24 2023-04-14 thomas struct got_object *obj;
977 f9542c24 2023-04-14 thomas
978 f9542c24 2023-04-14 thomas STAILQ_FOREACH(ref_update, ref_updates, entry) {
979 f9542c24 2023-04-14 thomas err = got_object_open(&obj, repo_write.repo,
980 f9542c24 2023-04-14 thomas &ref_update->new_id);
981 f9542c24 2023-04-14 thomas if (err)
982 f9542c24 2023-04-14 thomas return err;
983 f9542c24 2023-04-14 thomas got_object_close(obj);
984 f9542c24 2023-04-14 thomas }
985 f9542c24 2023-04-14 thomas
986 f9542c24 2023-04-14 thomas return NULL;
987 f9542c24 2023-04-14 thomas }
988 f9542c24 2023-04-14 thomas
989 f9542c24 2023-04-14 thomas static const struct got_error *
990 d98779cd 2023-01-19 thomas recv_packdata(off_t *outsize, uint32_t *nobj, uint8_t *sha1,
991 d98779cd 2023-01-19 thomas int infd, int outfd)
992 3efd8e31 2022-10-23 thomas {
993 3efd8e31 2022-10-23 thomas const struct got_error *err;
994 d98779cd 2023-01-19 thomas struct repo_write_client *client = &repo_write_client;
995 3efd8e31 2022-10-23 thomas struct got_packfile_hdr hdr;
996 3efd8e31 2022-10-23 thomas size_t have;
997 d98779cd 2023-01-19 thomas uint32_t nhave = 0;
998 b16893ba 2023-02-24 thomas struct got_hash ctx;
999 3efd8e31 2022-10-23 thomas uint8_t expected_sha1[SHA1_DIGEST_LENGTH];
1000 3efd8e31 2022-10-23 thomas char hex[SHA1_DIGEST_STRING_LENGTH];
1001 3efd8e31 2022-10-23 thomas BUF *buf = NULL;
1002 3efd8e31 2022-10-23 thomas size_t buf_pos = 0, remain;
1003 3efd8e31 2022-10-23 thomas ssize_t w;
1004 3efd8e31 2022-10-23 thomas
1005 3efd8e31 2022-10-23 thomas *outsize = 0;
1006 d98779cd 2023-01-19 thomas *nobj = 0;
1007 49563dfb 2023-01-28 thomas
1008 49563dfb 2023-01-28 thomas /* if only deleting references there's nothing to read */
1009 49563dfb 2023-01-28 thomas if (client->nref_updates == client->nref_del)
1010 49563dfb 2023-01-28 thomas return NULL;
1011 49563dfb 2023-01-28 thomas
1012 b16893ba 2023-02-24 thomas got_hash_init(&ctx, GOT_HASH_SHA1);
1013 3efd8e31 2022-10-23 thomas
1014 3efd8e31 2022-10-23 thomas err = got_poll_read_full(infd, &have, &hdr, sizeof(hdr), sizeof(hdr));
1015 3efd8e31 2022-10-23 thomas if (err)
1016 3efd8e31 2022-10-23 thomas return err;
1017 3efd8e31 2022-10-23 thomas if (have != sizeof(hdr))
1018 3efd8e31 2022-10-23 thomas return got_error_msg(GOT_ERR_BAD_PACKFILE, "short pack file");
1019 3efd8e31 2022-10-23 thomas *outsize += have;
1020 3efd8e31 2022-10-23 thomas
1021 3efd8e31 2022-10-23 thomas if (hdr.signature != htobe32(GOT_PACKFILE_SIGNATURE))
1022 3efd8e31 2022-10-23 thomas return got_error_msg(GOT_ERR_BAD_PACKFILE,
1023 3efd8e31 2022-10-23 thomas "bad packfile signature");
1024 3efd8e31 2022-10-23 thomas if (hdr.version != htobe32(GOT_PACKFILE_VERSION))
1025 3efd8e31 2022-10-23 thomas return got_error_msg(GOT_ERR_BAD_PACKFILE,
1026 3efd8e31 2022-10-23 thomas "bad packfile version");
1027 3efd8e31 2022-10-23 thomas
1028 d98779cd 2023-01-19 thomas *nobj = be32toh(hdr.nobjects);
1029 d98779cd 2023-01-19 thomas if (*nobj == 0) {
1030 d98779cd 2023-01-19 thomas /*
1031 d98779cd 2023-01-19 thomas * Clients which are creating new references only
1032 d98779cd 2023-01-19 thomas * will send us an empty pack file.
1033 d98779cd 2023-01-19 thomas */
1034 d98779cd 2023-01-19 thomas if (client->nref_updates > 0 &&
1035 d98779cd 2023-01-19 thomas client->nref_updates == client->nref_new)
1036 d98779cd 2023-01-19 thomas return NULL;
1037 d98779cd 2023-01-19 thomas
1038 f9542c24 2023-04-14 thomas /*
1039 f9542c24 2023-04-14 thomas * Clients which only move existing refs will send us an empty
1040 f9542c24 2023-04-14 thomas * pack file. All referenced objects must exist locally.
1041 f9542c24 2023-04-14 thomas */
1042 f9542c24 2023-04-14 thomas err = ensure_all_objects_exist_locally(&client->ref_updates);
1043 f9542c24 2023-04-14 thomas if (err) {
1044 f9542c24 2023-04-14 thomas if (err->code != GOT_ERR_NO_OBJ)
1045 f9542c24 2023-04-14 thomas return err;
1046 f9542c24 2023-04-14 thomas return got_error_msg(GOT_ERR_BAD_PACKFILE,
1047 f9542c24 2023-04-14 thomas "bad packfile with zero objects");
1048 f9542c24 2023-04-14 thomas }
1049 f9542c24 2023-04-14 thomas
1050 f9542c24 2023-04-14 thomas client->nref_move = client->nref_updates;
1051 f9542c24 2023-04-14 thomas return NULL;
1052 d98779cd 2023-01-19 thomas }
1053 3efd8e31 2022-10-23 thomas
1054 d98779cd 2023-01-19 thomas log_debug("expecting %d objects", *nobj);
1055 3efd8e31 2022-10-23 thomas
1056 3efd8e31 2022-10-23 thomas err = got_pack_hwrite(outfd, &hdr, sizeof(hdr), &ctx);
1057 3efd8e31 2022-10-23 thomas if (err)
1058 3efd8e31 2022-10-23 thomas return err;
1059 3efd8e31 2022-10-23 thomas
1060 3efd8e31 2022-10-23 thomas err = buf_alloc(&buf, 65536);
1061 3efd8e31 2022-10-23 thomas if (err)
1062 3efd8e31 2022-10-23 thomas return err;
1063 3efd8e31 2022-10-23 thomas
1064 d98779cd 2023-01-19 thomas while (nhave != *nobj) {
1065 3efd8e31 2022-10-23 thomas uint8_t obj_type;
1066 3efd8e31 2022-10-23 thomas uint64_t obj_size;
1067 3efd8e31 2022-10-23 thomas
1068 3efd8e31 2022-10-23 thomas err = copy_object_type_and_size(&obj_type, &obj_size,
1069 3efd8e31 2022-10-23 thomas infd, outfd, outsize, buf, &buf_pos, &ctx);
1070 3efd8e31 2022-10-23 thomas if (err)
1071 3efd8e31 2022-10-23 thomas goto done;
1072 3efd8e31 2022-10-23 thomas
1073 3efd8e31 2022-10-23 thomas err = validate_object_type(obj_type);
1074 3efd8e31 2022-10-23 thomas if (err)
1075 3efd8e31 2022-10-23 thomas goto done;
1076 3efd8e31 2022-10-23 thomas
1077 3efd8e31 2022-10-23 thomas if (obj_type == GOT_OBJ_TYPE_REF_DELTA) {
1078 3efd8e31 2022-10-23 thomas err = copy_ref_delta(infd, outfd, outsize,
1079 3efd8e31 2022-10-23 thomas buf, &buf_pos, &ctx);
1080 3efd8e31 2022-10-23 thomas if (err)
1081 3efd8e31 2022-10-23 thomas goto done;
1082 3efd8e31 2022-10-23 thomas } else if (obj_type == GOT_OBJ_TYPE_OFFSET_DELTA) {
1083 3efd8e31 2022-10-23 thomas err = copy_offset_delta(infd, outfd, outsize,
1084 3efd8e31 2022-10-23 thomas buf, &buf_pos, &ctx);
1085 3efd8e31 2022-10-23 thomas if (err)
1086 3efd8e31 2022-10-23 thomas goto done;
1087 3efd8e31 2022-10-23 thomas }
1088 3efd8e31 2022-10-23 thomas
1089 3efd8e31 2022-10-23 thomas err = copy_zstream(infd, outfd, outsize, buf, &buf_pos, &ctx);
1090 3efd8e31 2022-10-23 thomas if (err)
1091 3efd8e31 2022-10-23 thomas goto done;
1092 3efd8e31 2022-10-23 thomas
1093 3efd8e31 2022-10-23 thomas nhave++;
1094 3efd8e31 2022-10-23 thomas }
1095 3efd8e31 2022-10-23 thomas
1096 d98779cd 2023-01-19 thomas log_debug("received %u objects", *nobj);
1097 3efd8e31 2022-10-23 thomas
1098 b16893ba 2023-02-24 thomas got_hash_final(&ctx, expected_sha1);
1099 3efd8e31 2022-10-23 thomas
1100 3efd8e31 2022-10-23 thomas remain = buf_len(buf) - buf_pos;
1101 3efd8e31 2022-10-23 thomas if (remain < SHA1_DIGEST_LENGTH) {
1102 3efd8e31 2022-10-23 thomas err = read_more_pack_stream(infd, buf,
1103 3efd8e31 2022-10-23 thomas SHA1_DIGEST_LENGTH - remain);
1104 3efd8e31 2022-10-23 thomas if (err)
1105 3efd8e31 2022-10-23 thomas return err;
1106 3efd8e31 2022-10-23 thomas }
1107 3efd8e31 2022-10-23 thomas
1108 3efd8e31 2022-10-23 thomas got_sha1_digest_to_str(expected_sha1, hex, sizeof(hex));
1109 3efd8e31 2022-10-23 thomas log_debug("expect SHA1: %s", hex);
1110 3efd8e31 2022-10-23 thomas got_sha1_digest_to_str(buf_get(buf) + buf_pos, hex, sizeof(hex));
1111 3efd8e31 2022-10-23 thomas log_debug("actual SHA1: %s", hex);
1112 3efd8e31 2022-10-23 thomas
1113 3efd8e31 2022-10-23 thomas if (memcmp(buf_get(buf) + buf_pos, expected_sha1,
1114 3efd8e31 2022-10-23 thomas SHA1_DIGEST_LENGTH) != 0) {
1115 3efd8e31 2022-10-23 thomas err = got_error(GOT_ERR_PACKFILE_CSUM);
1116 3efd8e31 2022-10-23 thomas goto done;
1117 3efd8e31 2022-10-23 thomas }
1118 3efd8e31 2022-10-23 thomas
1119 3efd8e31 2022-10-23 thomas memcpy(sha1, expected_sha1, SHA1_DIGEST_LENGTH);
1120 3efd8e31 2022-10-23 thomas
1121 3efd8e31 2022-10-23 thomas w = write(outfd, expected_sha1, SHA1_DIGEST_LENGTH);
1122 3efd8e31 2022-10-23 thomas if (w == -1) {
1123 3efd8e31 2022-10-23 thomas err = got_error_from_errno("write");
1124 3efd8e31 2022-10-23 thomas goto done;
1125 3efd8e31 2022-10-23 thomas }
1126 3efd8e31 2022-10-23 thomas if (w != SHA1_DIGEST_LENGTH) {
1127 3efd8e31 2022-10-23 thomas err = got_error(GOT_ERR_IO);
1128 3efd8e31 2022-10-23 thomas goto done;
1129 3efd8e31 2022-10-23 thomas }
1130 3efd8e31 2022-10-23 thomas
1131 3efd8e31 2022-10-23 thomas *outsize += SHA1_DIGEST_LENGTH;
1132 3efd8e31 2022-10-23 thomas
1133 3efd8e31 2022-10-23 thomas if (fsync(outfd) == -1) {
1134 3efd8e31 2022-10-23 thomas err = got_error_from_errno("fsync");
1135 3efd8e31 2022-10-23 thomas goto done;
1136 3efd8e31 2022-10-23 thomas }
1137 3efd8e31 2022-10-23 thomas if (lseek(outfd, 0L, SEEK_SET) == -1) {
1138 3efd8e31 2022-10-23 thomas err = got_error_from_errno("lseek");
1139 3efd8e31 2022-10-23 thomas goto done;
1140 3efd8e31 2022-10-23 thomas }
1141 3efd8e31 2022-10-23 thomas done:
1142 3efd8e31 2022-10-23 thomas buf_free(buf);
1143 3efd8e31 2022-10-23 thomas return err;
1144 3efd8e31 2022-10-23 thomas }
1145 3efd8e31 2022-10-23 thomas
1146 3efd8e31 2022-10-23 thomas static const struct got_error *
1147 9148c8a7 2023-01-02 thomas report_pack_status(const struct got_error *unpack_err)
1148 3efd8e31 2022-10-23 thomas {
1149 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
1150 9148c8a7 2023-01-02 thomas struct repo_write_client *client = &repo_write_client;
1151 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_status istatus;
1152 3efd8e31 2022-10-23 thomas struct ibuf *wbuf;
1153 3efd8e31 2022-10-23 thomas struct imsgbuf ibuf;
1154 3efd8e31 2022-10-23 thomas const char *unpack_ok = "unpack ok\n";
1155 3efd8e31 2022-10-23 thomas size_t len;
1156 8652e561 2023-01-14 thomas
1157 3efd8e31 2022-10-23 thomas imsg_init(&ibuf, client->fd);
1158 3efd8e31 2022-10-23 thomas
1159 3efd8e31 2022-10-23 thomas if (unpack_err)
1160 3efd8e31 2022-10-23 thomas istatus.reason_len = strlen(unpack_err->msg);
1161 3efd8e31 2022-10-23 thomas else
1162 3efd8e31 2022-10-23 thomas istatus.reason_len = strlen(unpack_ok);
1163 3efd8e31 2022-10-23 thomas
1164 3efd8e31 2022-10-23 thomas len = sizeof(istatus) + istatus.reason_len;
1165 3efd8e31 2022-10-23 thomas wbuf = imsg_create(&ibuf, GOTD_IMSG_PACKFILE_STATUS, PROC_REPO_WRITE,
1166 3efd8e31 2022-10-23 thomas repo_write.pid, len);
1167 3efd8e31 2022-10-23 thomas if (wbuf == NULL) {
1168 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_create PACKFILE_STATUS");
1169 3efd8e31 2022-10-23 thomas goto done;
1170 3efd8e31 2022-10-23 thomas }
1171 3efd8e31 2022-10-23 thomas
1172 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, &istatus, sizeof(istatus)) == -1) {
1173 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_add PACKFILE_STATUS");
1174 3efd8e31 2022-10-23 thomas goto done;
1175 3efd8e31 2022-10-23 thomas }
1176 3efd8e31 2022-10-23 thomas
1177 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, err ? err->msg : unpack_ok,
1178 3efd8e31 2022-10-23 thomas istatus.reason_len) == -1) {
1179 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_add PACKFILE_STATUS");
1180 3efd8e31 2022-10-23 thomas goto done;
1181 3efd8e31 2022-10-23 thomas }
1182 3efd8e31 2022-10-23 thomas
1183 3efd8e31 2022-10-23 thomas wbuf->fd = -1;
1184 3efd8e31 2022-10-23 thomas imsg_close(&ibuf, wbuf);
1185 3efd8e31 2022-10-23 thomas
1186 3efd8e31 2022-10-23 thomas err = gotd_imsg_flush(&ibuf);
1187 3efd8e31 2022-10-23 thomas done:
1188 3efd8e31 2022-10-23 thomas imsg_clear(&ibuf);
1189 3efd8e31 2022-10-23 thomas return err;
1190 3efd8e31 2022-10-23 thomas }
1191 3efd8e31 2022-10-23 thomas
1192 3efd8e31 2022-10-23 thomas static const struct got_error *
1193 d98779cd 2023-01-19 thomas recv_packfile(int *have_packfile, struct imsg *imsg)
1194 3efd8e31 2022-10-23 thomas {
1195 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL, *unpack_err;
1196 9148c8a7 2023-01-02 thomas struct repo_write_client *client = &repo_write_client;
1197 3efd8e31 2022-10-23 thomas struct gotd_imsg_recv_packfile ireq;
1198 3efd8e31 2022-10-23 thomas FILE *tempfiles[3] = { NULL, NULL, NULL };
1199 3efd8e31 2022-10-23 thomas struct repo_tempfile {
1200 3efd8e31 2022-10-23 thomas int fd;
1201 3efd8e31 2022-10-23 thomas int idx;
1202 3efd8e31 2022-10-23 thomas } repo_tempfiles[3] = { { - 1, - 1 }, { - 1, - 1 }, { - 1, - 1 }, };
1203 3efd8e31 2022-10-23 thomas int i;
1204 3efd8e31 2022-10-23 thomas size_t datalen;
1205 3efd8e31 2022-10-23 thomas struct imsgbuf ibuf;
1206 3efd8e31 2022-10-23 thomas struct got_ratelimit rl;
1207 3efd8e31 2022-10-23 thomas struct got_pack *pack = NULL;
1208 3efd8e31 2022-10-23 thomas off_t pack_filesize = 0;
1209 d98779cd 2023-01-19 thomas uint32_t nobj = 0;
1210 3efd8e31 2022-10-23 thomas
1211 3efd8e31 2022-10-23 thomas log_debug("packfile request received");
1212 3efd8e31 2022-10-23 thomas
1213 d98779cd 2023-01-19 thomas *have_packfile = 0;
1214 3efd8e31 2022-10-23 thomas got_ratelimit_init(&rl, 2, 0);
1215 3efd8e31 2022-10-23 thomas
1216 3efd8e31 2022-10-23 thomas datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1217 3efd8e31 2022-10-23 thomas if (datalen != sizeof(ireq))
1218 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_LEN);
1219 3efd8e31 2022-10-23 thomas memcpy(&ireq, imsg->data, sizeof(ireq));
1220 3efd8e31 2022-10-23 thomas
1221 9148c8a7 2023-01-02 thomas if (client->pack_pipe == -1 || client->packidx_fd == -1)
1222 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_NO_FD);
1223 3efd8e31 2022-10-23 thomas
1224 9148c8a7 2023-01-02 thomas imsg_init(&ibuf, client->fd);
1225 3efd8e31 2022-10-23 thomas
1226 3efd8e31 2022-10-23 thomas if (imsg->fd == -1)
1227 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_NO_FD);
1228 3efd8e31 2022-10-23 thomas
1229 9148c8a7 2023-01-02 thomas pack = &client->pack;
1230 3efd8e31 2022-10-23 thomas memset(pack, 0, sizeof(*pack));
1231 3efd8e31 2022-10-23 thomas pack->fd = imsg->fd;
1232 3efd8e31 2022-10-23 thomas err = got_delta_cache_alloc(&pack->delta_cache);
1233 3efd8e31 2022-10-23 thomas if (err)
1234 3efd8e31 2022-10-23 thomas return err;
1235 3efd8e31 2022-10-23 thomas
1236 3efd8e31 2022-10-23 thomas for (i = 0; i < nitems(repo_tempfiles); i++) {
1237 3efd8e31 2022-10-23 thomas struct repo_tempfile *t = &repo_tempfiles[i];
1238 3efd8e31 2022-10-23 thomas err = got_repo_temp_fds_get(&t->fd, &t->idx, repo_write.repo);
1239 3efd8e31 2022-10-23 thomas if (err)
1240 3efd8e31 2022-10-23 thomas goto done;
1241 3efd8e31 2022-10-23 thomas }
1242 3efd8e31 2022-10-23 thomas
1243 3efd8e31 2022-10-23 thomas for (i = 0; i < nitems(tempfiles); i++) {
1244 da2c57e4 2023-02-03 thomas int fd;
1245 3efd8e31 2022-10-23 thomas FILE *f;
1246 da2c57e4 2023-02-03 thomas
1247 da2c57e4 2023-02-03 thomas fd = dup(repo_tempfiles[i].fd);
1248 3efd8e31 2022-10-23 thomas if (fd == -1) {
1249 3efd8e31 2022-10-23 thomas err = got_error_from_errno("dup");
1250 3efd8e31 2022-10-23 thomas goto done;
1251 3efd8e31 2022-10-23 thomas }
1252 3efd8e31 2022-10-23 thomas f = fdopen(fd, "w+");
1253 3efd8e31 2022-10-23 thomas if (f == NULL) {
1254 da2c57e4 2023-02-03 thomas err = got_error_from_errno("fdopen");
1255 3efd8e31 2022-10-23 thomas close(fd);
1256 3efd8e31 2022-10-23 thomas goto done;
1257 3efd8e31 2022-10-23 thomas }
1258 3efd8e31 2022-10-23 thomas tempfiles[i] = f;
1259 3efd8e31 2022-10-23 thomas }
1260 3efd8e31 2022-10-23 thomas
1261 3efd8e31 2022-10-23 thomas err = gotd_imsg_flush(&ibuf);
1262 3efd8e31 2022-10-23 thomas if (err)
1263 3efd8e31 2022-10-23 thomas goto done;
1264 3efd8e31 2022-10-23 thomas
1265 3efd8e31 2022-10-23 thomas log_debug("receiving pack data");
1266 d98779cd 2023-01-19 thomas unpack_err = recv_packdata(&pack_filesize, &nobj,
1267 d98779cd 2023-01-19 thomas client->pack_sha1, client->pack_pipe, pack->fd);
1268 3efd8e31 2022-10-23 thomas if (ireq.report_status) {
1269 9148c8a7 2023-01-02 thomas err = report_pack_status(unpack_err);
1270 3efd8e31 2022-10-23 thomas if (err) {
1271 3efd8e31 2022-10-23 thomas /* Git clients hang up after sending the pack file. */
1272 3efd8e31 2022-10-23 thomas if (err->code == GOT_ERR_EOF)
1273 3efd8e31 2022-10-23 thomas err = NULL;
1274 3efd8e31 2022-10-23 thomas }
1275 3efd8e31 2022-10-23 thomas }
1276 3efd8e31 2022-10-23 thomas if (unpack_err)
1277 3efd8e31 2022-10-23 thomas err = unpack_err;
1278 3efd8e31 2022-10-23 thomas if (err)
1279 3efd8e31 2022-10-23 thomas goto done;
1280 3efd8e31 2022-10-23 thomas
1281 3efd8e31 2022-10-23 thomas log_debug("pack data received");
1282 d98779cd 2023-01-19 thomas
1283 d98779cd 2023-01-19 thomas /*
1284 d98779cd 2023-01-19 thomas * Clients which are creating new references only will
1285 d98779cd 2023-01-19 thomas * send us an empty pack file.
1286 d98779cd 2023-01-19 thomas */
1287 d98779cd 2023-01-19 thomas if (nobj == 0 &&
1288 d98779cd 2023-01-19 thomas pack_filesize == sizeof(struct got_packfile_hdr) &&
1289 d98779cd 2023-01-19 thomas client->nref_updates > 0 &&
1290 d98779cd 2023-01-19 thomas client->nref_updates == client->nref_new)
1291 d98779cd 2023-01-19 thomas goto done;
1292 3efd8e31 2022-10-23 thomas
1293 49563dfb 2023-01-28 thomas /*
1294 49563dfb 2023-01-28 thomas * Clients which are deleting references only will send
1295 49563dfb 2023-01-28 thomas * no pack file.
1296 49563dfb 2023-01-28 thomas */
1297 49563dfb 2023-01-28 thomas if (nobj == 0 &&
1298 49563dfb 2023-01-28 thomas client->nref_del > 0 &&
1299 49563dfb 2023-01-28 thomas client->nref_updates == client->nref_del)
1300 f9542c24 2023-04-14 thomas goto done;
1301 f9542c24 2023-04-14 thomas
1302 f9542c24 2023-04-14 thomas /*
1303 f9542c24 2023-04-14 thomas * Clients which only move existing refs will send us an empty
1304 f9542c24 2023-04-14 thomas * pack file. All referenced objects must exist locally.
1305 f9542c24 2023-04-14 thomas */
1306 f9542c24 2023-04-14 thomas if (nobj == 0 &&
1307 f9542c24 2023-04-14 thomas pack_filesize == sizeof(struct got_packfile_hdr) &&
1308 f9542c24 2023-04-14 thomas client->nref_move > 0 &&
1309 f9542c24 2023-04-14 thomas client->nref_updates == client->nref_move)
1310 49563dfb 2023-01-28 thomas goto done;
1311 49563dfb 2023-01-28 thomas
1312 3efd8e31 2022-10-23 thomas pack->filesize = pack_filesize;
1313 d98779cd 2023-01-19 thomas *have_packfile = 1;
1314 3efd8e31 2022-10-23 thomas
1315 66e6097f 2022-10-27 thomas log_debug("begin indexing pack (%lld bytes in size)",
1316 66e6097f 2022-10-27 thomas (long long)pack->filesize);
1317 9148c8a7 2023-01-02 thomas err = got_pack_index(pack, client->packidx_fd,
1318 9148c8a7 2023-01-02 thomas tempfiles[0], tempfiles[1], tempfiles[2], client->pack_sha1,
1319 3efd8e31 2022-10-23 thomas pack_index_progress, NULL, &rl);
1320 3efd8e31 2022-10-23 thomas if (err)
1321 3efd8e31 2022-10-23 thomas goto done;
1322 3efd8e31 2022-10-23 thomas log_debug("done indexing pack");
1323 3efd8e31 2022-10-23 thomas
1324 9148c8a7 2023-01-02 thomas if (fsync(client->packidx_fd) == -1) {
1325 3efd8e31 2022-10-23 thomas err = got_error_from_errno("fsync");
1326 3efd8e31 2022-10-23 thomas goto done;
1327 3efd8e31 2022-10-23 thomas }
1328 9148c8a7 2023-01-02 thomas if (lseek(client->packidx_fd, 0L, SEEK_SET) == -1)
1329 3efd8e31 2022-10-23 thomas err = got_error_from_errno("lseek");
1330 3efd8e31 2022-10-23 thomas done:
1331 9148c8a7 2023-01-02 thomas if (close(client->pack_pipe) == -1 && err == NULL)
1332 3efd8e31 2022-10-23 thomas err = got_error_from_errno("close");
1333 9148c8a7 2023-01-02 thomas client->pack_pipe = -1;
1334 3efd8e31 2022-10-23 thomas for (i = 0; i < nitems(repo_tempfiles); i++) {
1335 3efd8e31 2022-10-23 thomas struct repo_tempfile *t = &repo_tempfiles[i];
1336 3efd8e31 2022-10-23 thomas if (t->idx != -1)
1337 3efd8e31 2022-10-23 thomas got_repo_temp_fds_put(t->idx, repo_write.repo);
1338 3efd8e31 2022-10-23 thomas }
1339 3efd8e31 2022-10-23 thomas for (i = 0; i < nitems(tempfiles); i++) {
1340 3efd8e31 2022-10-23 thomas if (tempfiles[i] && fclose(tempfiles[i]) == EOF && err == NULL)
1341 3efd8e31 2022-10-23 thomas err = got_error_from_errno("fclose");
1342 3efd8e31 2022-10-23 thomas }
1343 3efd8e31 2022-10-23 thomas if (err)
1344 3efd8e31 2022-10-23 thomas got_pack_close(pack);
1345 3efd8e31 2022-10-23 thomas imsg_clear(&ibuf);
1346 3efd8e31 2022-10-23 thomas return err;
1347 3efd8e31 2022-10-23 thomas }
1348 3efd8e31 2022-10-23 thomas
1349 3efd8e31 2022-10-23 thomas static const struct got_error *
1350 9148c8a7 2023-01-02 thomas verify_packfile(void)
1351 3efd8e31 2022-10-23 thomas {
1352 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL, *close_err;
1353 9148c8a7 2023-01-02 thomas struct repo_write_client *client = &repo_write_client;
1354 3efd8e31 2022-10-23 thomas struct gotd_ref_update *ref_update;
1355 3efd8e31 2022-10-23 thomas struct got_packidx *packidx = NULL;
1356 3efd8e31 2022-10-23 thomas struct stat sb;
1357 3efd8e31 2022-10-23 thomas char *id_str = NULL;
1358 6d7eb4f7 2023-04-04 thomas struct got_object *obj = NULL;
1359 6d7eb4f7 2023-04-04 thomas struct got_pathlist_entry *pe;
1360 6d7eb4f7 2023-04-04 thomas char hex[SHA1_DIGEST_STRING_LENGTH];
1361 3efd8e31 2022-10-23 thomas
1362 3efd8e31 2022-10-23 thomas if (STAILQ_EMPTY(&client->ref_updates)) {
1363 3efd8e31 2022-10-23 thomas return got_error_msg(GOT_ERR_BAD_REQUEST,
1364 3efd8e31 2022-10-23 thomas "cannot verify pack file without any ref-updates");
1365 3efd8e31 2022-10-23 thomas }
1366 3efd8e31 2022-10-23 thomas
1367 3efd8e31 2022-10-23 thomas if (client->pack.fd == -1) {
1368 3efd8e31 2022-10-23 thomas return got_error_msg(GOT_ERR_BAD_REQUEST,
1369 3efd8e31 2022-10-23 thomas "invalid pack file handle during pack verification");
1370 3efd8e31 2022-10-23 thomas }
1371 3efd8e31 2022-10-23 thomas if (client->packidx_fd == -1) {
1372 3efd8e31 2022-10-23 thomas return got_error_msg(GOT_ERR_BAD_REQUEST,
1373 3efd8e31 2022-10-23 thomas "invalid pack index handle during pack verification");
1374 3efd8e31 2022-10-23 thomas }
1375 3efd8e31 2022-10-23 thomas
1376 3efd8e31 2022-10-23 thomas if (fstat(client->packidx_fd, &sb) == -1)
1377 3efd8e31 2022-10-23 thomas return got_error_from_errno("pack index fstat");
1378 3efd8e31 2022-10-23 thomas
1379 3efd8e31 2022-10-23 thomas packidx = malloc(sizeof(*packidx));
1380 3efd8e31 2022-10-23 thomas memset(packidx, 0, sizeof(*packidx));
1381 3efd8e31 2022-10-23 thomas packidx->fd = client->packidx_fd;
1382 3efd8e31 2022-10-23 thomas client->packidx_fd = -1;
1383 3efd8e31 2022-10-23 thomas packidx->len = sb.st_size;
1384 8652e561 2023-01-14 thomas
1385 3efd8e31 2022-10-23 thomas err = got_packidx_init_hdr(packidx, 1, client->pack.filesize);
1386 3efd8e31 2022-10-23 thomas if (err)
1387 3efd8e31 2022-10-23 thomas return err;
1388 3efd8e31 2022-10-23 thomas
1389 3efd8e31 2022-10-23 thomas STAILQ_FOREACH(ref_update, &client->ref_updates, entry) {
1390 49563dfb 2023-01-28 thomas if (ref_update->delete_ref)
1391 49563dfb 2023-01-28 thomas continue;
1392 49563dfb 2023-01-28 thomas
1393 6d7eb4f7 2023-04-04 thomas TAILQ_FOREACH(pe, repo_write.protected_tag_namespaces, entry) {
1394 6d7eb4f7 2023-04-04 thomas err = protect_tag_namespace(pe->path, &client->pack,
1395 6d7eb4f7 2023-04-04 thomas packidx, ref_update);
1396 6d7eb4f7 2023-04-04 thomas if (err)
1397 6d7eb4f7 2023-04-04 thomas goto done;
1398 6d7eb4f7 2023-04-04 thomas }
1399 3efd8e31 2022-10-23 thomas
1400 6d7eb4f7 2023-04-04 thomas /*
1401 6d7eb4f7 2023-04-04 thomas * Objects which already exist in our repository need
1402 6d7eb4f7 2023-04-04 thomas * not be present in the pack file.
1403 6d7eb4f7 2023-04-04 thomas */
1404 6d7eb4f7 2023-04-04 thomas err = got_object_open(&obj, repo_write.repo,
1405 6d7eb4f7 2023-04-04 thomas &ref_update->new_id);
1406 6d7eb4f7 2023-04-04 thomas if (err && err->code != GOT_ERR_NO_OBJ)
1407 3efd8e31 2022-10-23 thomas goto done;
1408 6d7eb4f7 2023-04-04 thomas err = NULL;
1409 6d7eb4f7 2023-04-04 thomas if (obj) {
1410 6d7eb4f7 2023-04-04 thomas got_object_close(obj);
1411 6d7eb4f7 2023-04-04 thomas obj = NULL;
1412 6d7eb4f7 2023-04-04 thomas } else {
1413 6d7eb4f7 2023-04-04 thomas int idx = got_packidx_get_object_idx(packidx,
1414 6d7eb4f7 2023-04-04 thomas &ref_update->new_id);
1415 6d7eb4f7 2023-04-04 thomas if (idx == -1) {
1416 6d7eb4f7 2023-04-04 thomas got_sha1_digest_to_str(ref_update->new_id.sha1,
1417 6d7eb4f7 2023-04-04 thomas hex, sizeof(hex));
1418 6d7eb4f7 2023-04-04 thomas err = got_error_fmt(GOT_ERR_BAD_PACKFILE,
1419 6d7eb4f7 2023-04-04 thomas "object %s is missing from pack file",
1420 6d7eb4f7 2023-04-04 thomas hex);
1421 6d7eb4f7 2023-04-04 thomas goto done;
1422 6d7eb4f7 2023-04-04 thomas }
1423 3efd8e31 2022-10-23 thomas }
1424 6d7eb4f7 2023-04-04 thomas
1425 6d7eb4f7 2023-04-04 thomas TAILQ_FOREACH(pe, repo_write.protected_branch_namespaces,
1426 6d7eb4f7 2023-04-04 thomas entry) {
1427 6d7eb4f7 2023-04-04 thomas err = protect_branch_namespace(pe->path,
1428 6d7eb4f7 2023-04-04 thomas &client->pack, packidx, ref_update);
1429 6d7eb4f7 2023-04-04 thomas if (err)
1430 6d7eb4f7 2023-04-04 thomas goto done;
1431 6d7eb4f7 2023-04-04 thomas }
1432 6d7eb4f7 2023-04-04 thomas TAILQ_FOREACH(pe, repo_write.protected_branches, entry) {
1433 6d7eb4f7 2023-04-04 thomas err = protect_branch(pe->path, &client->pack,
1434 6d7eb4f7 2023-04-04 thomas packidx, ref_update);
1435 6d7eb4f7 2023-04-04 thomas if (err)
1436 6d7eb4f7 2023-04-04 thomas goto done;
1437 6d7eb4f7 2023-04-04 thomas }
1438 3efd8e31 2022-10-23 thomas }
1439 3efd8e31 2022-10-23 thomas
1440 8652e561 2023-01-14 thomas done:
1441 3efd8e31 2022-10-23 thomas close_err = got_packidx_close(packidx);
1442 3efd8e31 2022-10-23 thomas if (close_err && err == NULL)
1443 3efd8e31 2022-10-23 thomas err = close_err;
1444 3efd8e31 2022-10-23 thomas free(id_str);
1445 6d7eb4f7 2023-04-04 thomas if (obj)
1446 6d7eb4f7 2023-04-04 thomas got_object_close(obj);
1447 3efd8e31 2022-10-23 thomas return err;
1448 3efd8e31 2022-10-23 thomas }
1449 3efd8e31 2022-10-23 thomas
1450 3efd8e31 2022-10-23 thomas static const struct got_error *
1451 6d7eb4f7 2023-04-04 thomas protect_refs_from_deletion(void)
1452 6d7eb4f7 2023-04-04 thomas {
1453 6d7eb4f7 2023-04-04 thomas const struct got_error *err = NULL;
1454 6d7eb4f7 2023-04-04 thomas struct repo_write_client *client = &repo_write_client;
1455 6d7eb4f7 2023-04-04 thomas struct gotd_ref_update *ref_update;
1456 6d7eb4f7 2023-04-04 thomas struct got_pathlist_entry *pe;
1457 6d7eb4f7 2023-04-04 thomas const char *refname;
1458 6d7eb4f7 2023-04-04 thomas
1459 6d7eb4f7 2023-04-04 thomas STAILQ_FOREACH(ref_update, &client->ref_updates, entry) {
1460 6d7eb4f7 2023-04-04 thomas if (!ref_update->delete_ref)
1461 6d7eb4f7 2023-04-04 thomas continue;
1462 6d7eb4f7 2023-04-04 thomas
1463 6d7eb4f7 2023-04-04 thomas refname = got_ref_get_name(ref_update->ref);
1464 6d7eb4f7 2023-04-04 thomas
1465 6d7eb4f7 2023-04-04 thomas TAILQ_FOREACH(pe, repo_write.protected_tag_namespaces, entry) {
1466 6d7eb4f7 2023-04-04 thomas err = protect_ref_namespace(refname, pe->path);
1467 6d7eb4f7 2023-04-04 thomas if (err)
1468 6d7eb4f7 2023-04-04 thomas return err;
1469 6d7eb4f7 2023-04-04 thomas }
1470 6d7eb4f7 2023-04-04 thomas
1471 6d7eb4f7 2023-04-04 thomas TAILQ_FOREACH(pe, repo_write.protected_branch_namespaces,
1472 6d7eb4f7 2023-04-04 thomas entry) {
1473 6d7eb4f7 2023-04-04 thomas err = protect_ref_namespace(refname, pe->path);
1474 6d7eb4f7 2023-04-04 thomas if (err)
1475 6d7eb4f7 2023-04-04 thomas return err;
1476 6d7eb4f7 2023-04-04 thomas }
1477 6d7eb4f7 2023-04-04 thomas
1478 6d7eb4f7 2023-04-04 thomas TAILQ_FOREACH(pe, repo_write.protected_branches, entry) {
1479 6d7eb4f7 2023-04-04 thomas if (strcmp(refname, pe->path) == 0) {
1480 6d7eb4f7 2023-04-04 thomas return got_error_fmt(GOT_ERR_REF_PROTECTED,
1481 6d7eb4f7 2023-04-04 thomas "%s", refname);
1482 6d7eb4f7 2023-04-04 thomas }
1483 6d7eb4f7 2023-04-04 thomas }
1484 6d7eb4f7 2023-04-04 thomas }
1485 6d7eb4f7 2023-04-04 thomas
1486 6d7eb4f7 2023-04-04 thomas return NULL;
1487 6d7eb4f7 2023-04-04 thomas }
1488 6d7eb4f7 2023-04-04 thomas
1489 6d7eb4f7 2023-04-04 thomas static const struct got_error *
1490 9148c8a7 2023-01-02 thomas install_packfile(struct gotd_imsgev *iev)
1491 3efd8e31 2022-10-23 thomas {
1492 9148c8a7 2023-01-02 thomas struct repo_write_client *client = &repo_write_client;
1493 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_install inst;
1494 3efd8e31 2022-10-23 thomas int ret;
1495 3efd8e31 2022-10-23 thomas
1496 3efd8e31 2022-10-23 thomas memset(&inst, 0, sizeof(inst));
1497 3efd8e31 2022-10-23 thomas inst.client_id = client->id;
1498 3efd8e31 2022-10-23 thomas memcpy(inst.pack_sha1, client->pack_sha1, SHA1_DIGEST_LENGTH);
1499 3efd8e31 2022-10-23 thomas
1500 3efd8e31 2022-10-23 thomas ret = gotd_imsg_compose_event(iev, GOTD_IMSG_PACKFILE_INSTALL,
1501 3efd8e31 2022-10-23 thomas PROC_REPO_WRITE, -1, &inst, sizeof(inst));
1502 3efd8e31 2022-10-23 thomas if (ret == -1)
1503 3efd8e31 2022-10-23 thomas return got_error_from_errno("imsg_compose PACKFILE_INSTALL");
1504 3efd8e31 2022-10-23 thomas
1505 3efd8e31 2022-10-23 thomas return NULL;
1506 3efd8e31 2022-10-23 thomas }
1507 3efd8e31 2022-10-23 thomas
1508 3efd8e31 2022-10-23 thomas static const struct got_error *
1509 9148c8a7 2023-01-02 thomas send_ref_updates_start(int nref_updates, struct gotd_imsgev *iev)
1510 3efd8e31 2022-10-23 thomas {
1511 9148c8a7 2023-01-02 thomas struct repo_write_client *client = &repo_write_client;
1512 3efd8e31 2022-10-23 thomas struct gotd_imsg_ref_updates_start istart;
1513 3efd8e31 2022-10-23 thomas int ret;
1514 3efd8e31 2022-10-23 thomas
1515 3efd8e31 2022-10-23 thomas memset(&istart, 0, sizeof(istart));
1516 3efd8e31 2022-10-23 thomas istart.nref_updates = nref_updates;
1517 3efd8e31 2022-10-23 thomas istart.client_id = client->id;
1518 3efd8e31 2022-10-23 thomas
1519 3efd8e31 2022-10-23 thomas ret = gotd_imsg_compose_event(iev, GOTD_IMSG_REF_UPDATES_START,
1520 3efd8e31 2022-10-23 thomas PROC_REPO_WRITE, -1, &istart, sizeof(istart));
1521 3efd8e31 2022-10-23 thomas if (ret == -1)
1522 3efd8e31 2022-10-23 thomas return got_error_from_errno("imsg_compose REF_UPDATES_START");
1523 3efd8e31 2022-10-23 thomas
1524 3efd8e31 2022-10-23 thomas return NULL;
1525 3efd8e31 2022-10-23 thomas }
1526 3efd8e31 2022-10-23 thomas
1527 3efd8e31 2022-10-23 thomas
1528 3efd8e31 2022-10-23 thomas static const struct got_error *
1529 9148c8a7 2023-01-02 thomas send_ref_update(struct gotd_ref_update *ref_update, struct gotd_imsgev *iev)
1530 3efd8e31 2022-10-23 thomas {
1531 9148c8a7 2023-01-02 thomas struct repo_write_client *client = &repo_write_client;
1532 3efd8e31 2022-10-23 thomas struct gotd_imsg_ref_update iref;
1533 3efd8e31 2022-10-23 thomas const char *refname = got_ref_get_name(ref_update->ref);
1534 3efd8e31 2022-10-23 thomas struct ibuf *wbuf;
1535 3efd8e31 2022-10-23 thomas size_t len;
1536 3efd8e31 2022-10-23 thomas
1537 3efd8e31 2022-10-23 thomas memset(&iref, 0, sizeof(iref));
1538 3efd8e31 2022-10-23 thomas memcpy(iref.old_id, ref_update->old_id.sha1, SHA1_DIGEST_LENGTH);
1539 3efd8e31 2022-10-23 thomas memcpy(iref.new_id, ref_update->new_id.sha1, SHA1_DIGEST_LENGTH);
1540 3efd8e31 2022-10-23 thomas iref.ref_is_new = ref_update->ref_is_new;
1541 49563dfb 2023-01-28 thomas iref.delete_ref = ref_update->delete_ref;
1542 3efd8e31 2022-10-23 thomas iref.client_id = client->id;
1543 3efd8e31 2022-10-23 thomas iref.name_len = strlen(refname);
1544 3efd8e31 2022-10-23 thomas
1545 3efd8e31 2022-10-23 thomas len = sizeof(iref) + iref.name_len;
1546 3efd8e31 2022-10-23 thomas wbuf = imsg_create(&iev->ibuf, GOTD_IMSG_REF_UPDATE, PROC_REPO_WRITE,
1547 3efd8e31 2022-10-23 thomas repo_write.pid, len);
1548 3efd8e31 2022-10-23 thomas if (wbuf == NULL)
1549 3efd8e31 2022-10-23 thomas return got_error_from_errno("imsg_create REF_UPDATE");
1550 3efd8e31 2022-10-23 thomas
1551 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, &iref, sizeof(iref)) == -1)
1552 3efd8e31 2022-10-23 thomas return got_error_from_errno("imsg_add REF_UPDATE");
1553 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, refname, iref.name_len) == -1)
1554 3efd8e31 2022-10-23 thomas return got_error_from_errno("imsg_add REF_UPDATE");
1555 3efd8e31 2022-10-23 thomas
1556 3efd8e31 2022-10-23 thomas wbuf->fd = -1;
1557 3efd8e31 2022-10-23 thomas imsg_close(&iev->ibuf, wbuf);
1558 3efd8e31 2022-10-23 thomas
1559 3efd8e31 2022-10-23 thomas gotd_imsg_event_add(iev);
1560 3efd8e31 2022-10-23 thomas return NULL;
1561 3efd8e31 2022-10-23 thomas }
1562 3efd8e31 2022-10-23 thomas
1563 3efd8e31 2022-10-23 thomas static const struct got_error *
1564 9148c8a7 2023-01-02 thomas update_refs(struct gotd_imsgev *iev)
1565 3efd8e31 2022-10-23 thomas {
1566 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
1567 9148c8a7 2023-01-02 thomas struct repo_write_client *client = &repo_write_client;
1568 3efd8e31 2022-10-23 thomas struct gotd_ref_update *ref_update;
1569 3efd8e31 2022-10-23 thomas
1570 9148c8a7 2023-01-02 thomas err = send_ref_updates_start(client->nref_updates, iev);
1571 3efd8e31 2022-10-23 thomas if (err)
1572 3efd8e31 2022-10-23 thomas return err;
1573 3efd8e31 2022-10-23 thomas
1574 3efd8e31 2022-10-23 thomas STAILQ_FOREACH(ref_update, &client->ref_updates, entry) {
1575 9148c8a7 2023-01-02 thomas err = send_ref_update(ref_update, iev);
1576 3efd8e31 2022-10-23 thomas if (err)
1577 3efd8e31 2022-10-23 thomas goto done;
1578 3efd8e31 2022-10-23 thomas }
1579 3efd8e31 2022-10-23 thomas done:
1580 3efd8e31 2022-10-23 thomas return err;
1581 3efd8e31 2022-10-23 thomas }
1582 3efd8e31 2022-10-23 thomas
1583 3efd8e31 2022-10-23 thomas static const struct got_error *
1584 9148c8a7 2023-01-02 thomas receive_pack_pipe(struct imsg *imsg, struct gotd_imsgev *iev)
1585 3efd8e31 2022-10-23 thomas {
1586 9148c8a7 2023-01-02 thomas struct repo_write_client *client = &repo_write_client;
1587 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_pipe ireq;
1588 3efd8e31 2022-10-23 thomas size_t datalen;
1589 3efd8e31 2022-10-23 thomas
1590 ff553ea7 2023-04-22 thomas log_debug("receiving pack pipe descriptor");
1591 3efd8e31 2022-10-23 thomas
1592 3efd8e31 2022-10-23 thomas if (imsg->fd == -1)
1593 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_NO_FD);
1594 3efd8e31 2022-10-23 thomas
1595 3efd8e31 2022-10-23 thomas datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1596 3efd8e31 2022-10-23 thomas if (datalen != sizeof(ireq))
1597 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_LEN);
1598 3efd8e31 2022-10-23 thomas memcpy(&ireq, imsg->data, sizeof(ireq));
1599 3efd8e31 2022-10-23 thomas
1600 9148c8a7 2023-01-02 thomas if (client->pack_pipe != -1)
1601 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_MSG);
1602 3efd8e31 2022-10-23 thomas
1603 9148c8a7 2023-01-02 thomas client->pack_pipe = imsg->fd;
1604 3efd8e31 2022-10-23 thomas return NULL;
1605 3efd8e31 2022-10-23 thomas }
1606 3efd8e31 2022-10-23 thomas
1607 3efd8e31 2022-10-23 thomas static const struct got_error *
1608 9148c8a7 2023-01-02 thomas receive_pack_idx(struct imsg *imsg, struct gotd_imsgev *iev)
1609 3efd8e31 2022-10-23 thomas {
1610 9148c8a7 2023-01-02 thomas struct repo_write_client *client = &repo_write_client;
1611 3efd8e31 2022-10-23 thomas struct gotd_imsg_packidx_file ireq;
1612 3efd8e31 2022-10-23 thomas size_t datalen;
1613 3efd8e31 2022-10-23 thomas
1614 ff553ea7 2023-04-22 thomas log_debug("receiving pack index output file");
1615 3efd8e31 2022-10-23 thomas
1616 3efd8e31 2022-10-23 thomas if (imsg->fd == -1)
1617 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_NO_FD);
1618 3efd8e31 2022-10-23 thomas
1619 3efd8e31 2022-10-23 thomas datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1620 3efd8e31 2022-10-23 thomas if (datalen != sizeof(ireq))
1621 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_LEN);
1622 3efd8e31 2022-10-23 thomas memcpy(&ireq, imsg->data, sizeof(ireq));
1623 3efd8e31 2022-10-23 thomas
1624 9148c8a7 2023-01-02 thomas if (client->packidx_fd != -1)
1625 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_MSG);
1626 3efd8e31 2022-10-23 thomas
1627 9148c8a7 2023-01-02 thomas client->packidx_fd = imsg->fd;
1628 3efd8e31 2022-10-23 thomas return NULL;
1629 3efd8e31 2022-10-23 thomas }
1630 3efd8e31 2022-10-23 thomas
1631 3efd8e31 2022-10-23 thomas static void
1632 62ee7d94 2023-01-10 thomas repo_write_dispatch_session(int fd, short event, void *arg)
1633 3efd8e31 2022-10-23 thomas {
1634 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
1635 3efd8e31 2022-10-23 thomas struct gotd_imsgev *iev = arg;
1636 3efd8e31 2022-10-23 thomas struct imsgbuf *ibuf = &iev->ibuf;
1637 3efd8e31 2022-10-23 thomas struct imsg imsg;
1638 9148c8a7 2023-01-02 thomas struct repo_write_client *client = &repo_write_client;
1639 3efd8e31 2022-10-23 thomas ssize_t n;
1640 d98779cd 2023-01-19 thomas int shut = 0, have_packfile = 0;
1641 3efd8e31 2022-10-23 thomas
1642 3efd8e31 2022-10-23 thomas if (event & EV_READ) {
1643 3efd8e31 2022-10-23 thomas if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN)
1644 3efd8e31 2022-10-23 thomas fatal("imsg_read error");
1645 3efd8e31 2022-10-23 thomas if (n == 0) /* Connection closed. */
1646 3efd8e31 2022-10-23 thomas shut = 1;
1647 3efd8e31 2022-10-23 thomas }
1648 3efd8e31 2022-10-23 thomas
1649 3efd8e31 2022-10-23 thomas if (event & EV_WRITE) {
1650 3efd8e31 2022-10-23 thomas n = msgbuf_write(&ibuf->w);
1651 3efd8e31 2022-10-23 thomas if (n == -1 && errno != EAGAIN)
1652 3efd8e31 2022-10-23 thomas fatal("msgbuf_write");
1653 3efd8e31 2022-10-23 thomas if (n == 0) /* Connection closed. */
1654 3efd8e31 2022-10-23 thomas shut = 1;
1655 3efd8e31 2022-10-23 thomas }
1656 3efd8e31 2022-10-23 thomas
1657 3efd8e31 2022-10-23 thomas for (;;) {
1658 3efd8e31 2022-10-23 thomas if ((n = imsg_get(ibuf, &imsg)) == -1)
1659 3efd8e31 2022-10-23 thomas fatal("%s: imsg_get error", __func__);
1660 3efd8e31 2022-10-23 thomas if (n == 0) /* No more messages. */
1661 3efd8e31 2022-10-23 thomas break;
1662 3efd8e31 2022-10-23 thomas
1663 9148c8a7 2023-01-02 thomas if (imsg.hdr.type != GOTD_IMSG_LIST_REFS_INTERNAL &&
1664 9148c8a7 2023-01-02 thomas client->id == 0) {
1665 9148c8a7 2023-01-02 thomas err = got_error(GOT_ERR_PRIVSEP_MSG);
1666 9148c8a7 2023-01-02 thomas break;
1667 9148c8a7 2023-01-02 thomas }
1668 9148c8a7 2023-01-02 thomas
1669 3efd8e31 2022-10-23 thomas switch (imsg.hdr.type) {
1670 3efd8e31 2022-10-23 thomas case GOTD_IMSG_LIST_REFS_INTERNAL:
1671 9148c8a7 2023-01-02 thomas err = list_refs(&imsg);
1672 3efd8e31 2022-10-23 thomas if (err)
1673 42f290d4 2023-03-05 thomas log_warnx("ls-refs: %s", err->msg);
1674 3efd8e31 2022-10-23 thomas break;
1675 3efd8e31 2022-10-23 thomas case GOTD_IMSG_REF_UPDATE:
1676 9148c8a7 2023-01-02 thomas err = recv_ref_update(&imsg);
1677 3efd8e31 2022-10-23 thomas if (err)
1678 42f290d4 2023-03-05 thomas log_warnx("ref-update: %s", err->msg);
1679 3efd8e31 2022-10-23 thomas break;
1680 3efd8e31 2022-10-23 thomas case GOTD_IMSG_PACKFILE_PIPE:
1681 9148c8a7 2023-01-02 thomas err = receive_pack_pipe(&imsg, iev);
1682 3efd8e31 2022-10-23 thomas if (err) {
1683 42f290d4 2023-03-05 thomas log_warnx("receiving pack pipe: %s", err->msg);
1684 3efd8e31 2022-10-23 thomas break;
1685 3efd8e31 2022-10-23 thomas }
1686 3efd8e31 2022-10-23 thomas break;
1687 3efd8e31 2022-10-23 thomas case GOTD_IMSG_PACKIDX_FILE:
1688 9148c8a7 2023-01-02 thomas err = receive_pack_idx(&imsg, iev);
1689 3efd8e31 2022-10-23 thomas if (err) {
1690 42f290d4 2023-03-05 thomas log_warnx("receiving pack index: %s",
1691 42f290d4 2023-03-05 thomas err->msg);
1692 3efd8e31 2022-10-23 thomas break;
1693 3efd8e31 2022-10-23 thomas }
1694 3efd8e31 2022-10-23 thomas break;
1695 3efd8e31 2022-10-23 thomas case GOTD_IMSG_RECV_PACKFILE:
1696 6d7eb4f7 2023-04-04 thomas err = protect_refs_from_deletion();
1697 6d7eb4f7 2023-04-04 thomas if (err)
1698 6d7eb4f7 2023-04-04 thomas break;
1699 d98779cd 2023-01-19 thomas err = recv_packfile(&have_packfile, &imsg);
1700 3efd8e31 2022-10-23 thomas if (err) {
1701 42f290d4 2023-03-05 thomas log_warnx("receive packfile: %s", err->msg);
1702 3efd8e31 2022-10-23 thomas break;
1703 3efd8e31 2022-10-23 thomas }
1704 d98779cd 2023-01-19 thomas if (have_packfile) {
1705 d98779cd 2023-01-19 thomas err = verify_packfile();
1706 d98779cd 2023-01-19 thomas if (err) {
1707 42f290d4 2023-03-05 thomas log_warnx("verify packfile: %s",
1708 42f290d4 2023-03-05 thomas err->msg);
1709 d98779cd 2023-01-19 thomas break;
1710 d98779cd 2023-01-19 thomas }
1711 d98779cd 2023-01-19 thomas err = install_packfile(iev);
1712 d98779cd 2023-01-19 thomas if (err) {
1713 42f290d4 2023-03-05 thomas log_warnx("install packfile: %s",
1714 42f290d4 2023-03-05 thomas err->msg);
1715 d98779cd 2023-01-19 thomas break;
1716 d98779cd 2023-01-19 thomas }
1717 3efd8e31 2022-10-23 thomas }
1718 9148c8a7 2023-01-02 thomas err = update_refs(iev);
1719 3efd8e31 2022-10-23 thomas if (err) {
1720 42f290d4 2023-03-05 thomas log_warnx("update refs: %s", err->msg);
1721 3efd8e31 2022-10-23 thomas }
1722 3efd8e31 2022-10-23 thomas break;
1723 62ee7d94 2023-01-10 thomas default:
1724 42f290d4 2023-03-05 thomas log_debug("unexpected imsg %d", imsg.hdr.type);
1725 62ee7d94 2023-01-10 thomas break;
1726 62ee7d94 2023-01-10 thomas }
1727 62ee7d94 2023-01-10 thomas
1728 62ee7d94 2023-01-10 thomas imsg_free(&imsg);
1729 62ee7d94 2023-01-10 thomas }
1730 62ee7d94 2023-01-10 thomas
1731 62ee7d94 2023-01-10 thomas if (!shut && check_cancelled(NULL) == NULL) {
1732 62ee7d94 2023-01-10 thomas if (err &&
1733 62ee7d94 2023-01-10 thomas gotd_imsg_send_error_event(iev, PROC_REPO_WRITE,
1734 62ee7d94 2023-01-10 thomas client->id, err) == -1) {
1735 62ee7d94 2023-01-10 thomas log_warnx("could not send error to parent: %s",
1736 62ee7d94 2023-01-10 thomas err->msg);
1737 62ee7d94 2023-01-10 thomas }
1738 62ee7d94 2023-01-10 thomas gotd_imsg_event_add(iev);
1739 62ee7d94 2023-01-10 thomas } else {
1740 62ee7d94 2023-01-10 thomas /* This pipe is dead. Remove its event handler */
1741 62ee7d94 2023-01-10 thomas event_del(&iev->ev);
1742 62ee7d94 2023-01-10 thomas event_loopexit(NULL);
1743 62ee7d94 2023-01-10 thomas }
1744 62ee7d94 2023-01-10 thomas }
1745 62ee7d94 2023-01-10 thomas
1746 62ee7d94 2023-01-10 thomas static const struct got_error *
1747 62ee7d94 2023-01-10 thomas recv_connect(struct imsg *imsg)
1748 62ee7d94 2023-01-10 thomas {
1749 62ee7d94 2023-01-10 thomas struct gotd_imsgev *iev = &repo_write.session_iev;
1750 62ee7d94 2023-01-10 thomas size_t datalen;
1751 62ee7d94 2023-01-10 thomas
1752 62ee7d94 2023-01-10 thomas datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1753 62ee7d94 2023-01-10 thomas if (datalen != 0)
1754 62ee7d94 2023-01-10 thomas return got_error(GOT_ERR_PRIVSEP_LEN);
1755 62ee7d94 2023-01-10 thomas if (imsg->fd == -1)
1756 62ee7d94 2023-01-10 thomas return got_error(GOT_ERR_PRIVSEP_NO_FD);
1757 62ee7d94 2023-01-10 thomas
1758 62ee7d94 2023-01-10 thomas if (repo_write.session_fd != -1)
1759 62ee7d94 2023-01-10 thomas return got_error(GOT_ERR_PRIVSEP_MSG);
1760 62ee7d94 2023-01-10 thomas
1761 62ee7d94 2023-01-10 thomas repo_write.session_fd = imsg->fd;
1762 62ee7d94 2023-01-10 thomas
1763 62ee7d94 2023-01-10 thomas imsg_init(&iev->ibuf, repo_write.session_fd);
1764 62ee7d94 2023-01-10 thomas iev->handler = repo_write_dispatch_session;
1765 62ee7d94 2023-01-10 thomas iev->events = EV_READ;
1766 62ee7d94 2023-01-10 thomas iev->handler_arg = NULL;
1767 62ee7d94 2023-01-10 thomas event_set(&iev->ev, iev->ibuf.fd, EV_READ,
1768 62ee7d94 2023-01-10 thomas repo_write_dispatch_session, iev);
1769 62ee7d94 2023-01-10 thomas gotd_imsg_event_add(iev);
1770 62ee7d94 2023-01-10 thomas
1771 62ee7d94 2023-01-10 thomas return NULL;
1772 62ee7d94 2023-01-10 thomas }
1773 62ee7d94 2023-01-10 thomas
1774 62ee7d94 2023-01-10 thomas static void
1775 62ee7d94 2023-01-10 thomas repo_write_dispatch(int fd, short event, void *arg)
1776 62ee7d94 2023-01-10 thomas {
1777 62ee7d94 2023-01-10 thomas const struct got_error *err = NULL;
1778 62ee7d94 2023-01-10 thomas struct gotd_imsgev *iev = arg;
1779 62ee7d94 2023-01-10 thomas struct imsgbuf *ibuf = &iev->ibuf;
1780 62ee7d94 2023-01-10 thomas struct imsg imsg;
1781 62ee7d94 2023-01-10 thomas ssize_t n;
1782 62ee7d94 2023-01-10 thomas int shut = 0;
1783 62ee7d94 2023-01-10 thomas struct repo_write_client *client = &repo_write_client;
1784 62ee7d94 2023-01-10 thomas
1785 62ee7d94 2023-01-10 thomas if (event & EV_READ) {
1786 62ee7d94 2023-01-10 thomas if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN)
1787 62ee7d94 2023-01-10 thomas fatal("imsg_read error");
1788 62ee7d94 2023-01-10 thomas if (n == 0) /* Connection closed. */
1789 9148c8a7 2023-01-02 thomas shut = 1;
1790 62ee7d94 2023-01-10 thomas }
1791 62ee7d94 2023-01-10 thomas
1792 62ee7d94 2023-01-10 thomas if (event & EV_WRITE) {
1793 62ee7d94 2023-01-10 thomas n = msgbuf_write(&ibuf->w);
1794 62ee7d94 2023-01-10 thomas if (n == -1 && errno != EAGAIN)
1795 62ee7d94 2023-01-10 thomas fatal("msgbuf_write");
1796 62ee7d94 2023-01-10 thomas if (n == 0) /* Connection closed. */
1797 62ee7d94 2023-01-10 thomas shut = 1;
1798 62ee7d94 2023-01-10 thomas }
1799 62ee7d94 2023-01-10 thomas
1800 62ee7d94 2023-01-10 thomas while (err == NULL && check_cancelled(NULL) == NULL) {
1801 62ee7d94 2023-01-10 thomas if ((n = imsg_get(ibuf, &imsg)) == -1)
1802 62ee7d94 2023-01-10 thomas fatal("%s: imsg_get", __func__);
1803 62ee7d94 2023-01-10 thomas if (n == 0) /* No more messages. */
1804 3efd8e31 2022-10-23 thomas break;
1805 62ee7d94 2023-01-10 thomas
1806 62ee7d94 2023-01-10 thomas switch (imsg.hdr.type) {
1807 62ee7d94 2023-01-10 thomas case GOTD_IMSG_CONNECT_REPO_CHILD:
1808 62ee7d94 2023-01-10 thomas err = recv_connect(&imsg);
1809 62ee7d94 2023-01-10 thomas break;
1810 3efd8e31 2022-10-23 thomas default:
1811 42f290d4 2023-03-05 thomas log_debug("unexpected imsg %d", imsg.hdr.type);
1812 3efd8e31 2022-10-23 thomas break;
1813 3efd8e31 2022-10-23 thomas }
1814 3efd8e31 2022-10-23 thomas
1815 3efd8e31 2022-10-23 thomas imsg_free(&imsg);
1816 3efd8e31 2022-10-23 thomas }
1817 3efd8e31 2022-10-23 thomas
1818 3efd8e31 2022-10-23 thomas if (!shut && check_cancelled(NULL) == NULL) {
1819 3efd8e31 2022-10-23 thomas if (err &&
1820 3efd8e31 2022-10-23 thomas gotd_imsg_send_error_event(iev, PROC_REPO_WRITE,
1821 9148c8a7 2023-01-02 thomas client->id, err) == -1) {
1822 3efd8e31 2022-10-23 thomas log_warnx("could not send error to parent: %s",
1823 3efd8e31 2022-10-23 thomas err->msg);
1824 3efd8e31 2022-10-23 thomas }
1825 3efd8e31 2022-10-23 thomas gotd_imsg_event_add(iev);
1826 3efd8e31 2022-10-23 thomas } else {
1827 3efd8e31 2022-10-23 thomas /* This pipe is dead. Remove its event handler */
1828 3efd8e31 2022-10-23 thomas event_del(&iev->ev);
1829 3efd8e31 2022-10-23 thomas event_loopexit(NULL);
1830 3efd8e31 2022-10-23 thomas }
1831 3efd8e31 2022-10-23 thomas }
1832 3efd8e31 2022-10-23 thomas
1833 3efd8e31 2022-10-23 thomas void
1834 414e37cb 2022-12-30 thomas repo_write_main(const char *title, const char *repo_path,
1835 6d7eb4f7 2023-04-04 thomas int *pack_fds, int *temp_fds,
1836 6d7eb4f7 2023-04-04 thomas struct got_pathlist_head *protected_tag_namespaces,
1837 6d7eb4f7 2023-04-04 thomas struct got_pathlist_head *protected_branch_namespaces,
1838 6d7eb4f7 2023-04-04 thomas struct got_pathlist_head *protected_branches)
1839 3efd8e31 2022-10-23 thomas {
1840 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
1841 92db09ff 2023-02-17 thomas struct repo_write_client *client = &repo_write_client;
1842 3efd8e31 2022-10-23 thomas struct gotd_imsgev iev;
1843 3efd8e31 2022-10-23 thomas
1844 92db09ff 2023-02-17 thomas client->fd = -1;
1845 92db09ff 2023-02-17 thomas client->pack_pipe = -1;
1846 92db09ff 2023-02-17 thomas client->packidx_fd = -1;
1847 92db09ff 2023-02-17 thomas client->pack.fd = -1;
1848 92db09ff 2023-02-17 thomas
1849 3efd8e31 2022-10-23 thomas repo_write.title = title;
1850 3efd8e31 2022-10-23 thomas repo_write.pid = getpid();
1851 3efd8e31 2022-10-23 thomas repo_write.pack_fds = pack_fds;
1852 3efd8e31 2022-10-23 thomas repo_write.temp_fds = temp_fds;
1853 62ee7d94 2023-01-10 thomas repo_write.session_fd = -1;
1854 62ee7d94 2023-01-10 thomas repo_write.session_iev.ibuf.fd = -1;
1855 6d7eb4f7 2023-04-04 thomas repo_write.protected_tag_namespaces = protected_tag_namespaces;
1856 6d7eb4f7 2023-04-04 thomas repo_write.protected_branch_namespaces = protected_branch_namespaces;
1857 6d7eb4f7 2023-04-04 thomas repo_write.protected_branches = protected_branches;
1858 3efd8e31 2022-10-23 thomas
1859 9148c8a7 2023-01-02 thomas STAILQ_INIT(&repo_write_client.ref_updates);
1860 3efd8e31 2022-10-23 thomas
1861 414e37cb 2022-12-30 thomas err = got_repo_open(&repo_write.repo, repo_path, NULL, pack_fds);
1862 3efd8e31 2022-10-23 thomas if (err)
1863 3efd8e31 2022-10-23 thomas goto done;
1864 3efd8e31 2022-10-23 thomas if (!got_repo_is_bare(repo_write.repo)) {
1865 3efd8e31 2022-10-23 thomas err = got_error_msg(GOT_ERR_NOT_GIT_REPO,
1866 3efd8e31 2022-10-23 thomas "bare git repository required");
1867 3efd8e31 2022-10-23 thomas goto done;
1868 3efd8e31 2022-10-23 thomas }
1869 3efd8e31 2022-10-23 thomas
1870 3efd8e31 2022-10-23 thomas got_repo_temp_fds_set(repo_write.repo, temp_fds);
1871 3efd8e31 2022-10-23 thomas
1872 3efd8e31 2022-10-23 thomas signal(SIGINT, catch_sigint);
1873 3efd8e31 2022-10-23 thomas signal(SIGTERM, catch_sigterm);
1874 3efd8e31 2022-10-23 thomas signal(SIGPIPE, SIG_IGN);
1875 3efd8e31 2022-10-23 thomas signal(SIGHUP, SIG_IGN);
1876 3efd8e31 2022-10-23 thomas
1877 bb3a6ce9 2022-11-17 thomas imsg_init(&iev.ibuf, GOTD_FILENO_MSG_PIPE);
1878 3efd8e31 2022-10-23 thomas iev.handler = repo_write_dispatch;
1879 3efd8e31 2022-10-23 thomas iev.events = EV_READ;
1880 3efd8e31 2022-10-23 thomas iev.handler_arg = NULL;
1881 3efd8e31 2022-10-23 thomas event_set(&iev.ev, iev.ibuf.fd, EV_READ, repo_write_dispatch, &iev);
1882 85b37c72 2022-12-30 thomas if (gotd_imsg_compose_event(&iev, GOTD_IMSG_REPO_CHILD_READY,
1883 85b37c72 2022-12-30 thomas PROC_REPO_WRITE, -1, NULL, 0) == -1) {
1884 85b37c72 2022-12-30 thomas err = got_error_from_errno("imsg compose REPO_CHILD_READY");
1885 3efd8e31 2022-10-23 thomas goto done;
1886 3efd8e31 2022-10-23 thomas }
1887 3efd8e31 2022-10-23 thomas
1888 3efd8e31 2022-10-23 thomas event_dispatch();
1889 3efd8e31 2022-10-23 thomas done:
1890 3efd8e31 2022-10-23 thomas if (err)
1891 3efd8e31 2022-10-23 thomas log_warnx("%s: %s", title, err->msg);
1892 3efd8e31 2022-10-23 thomas repo_write_shutdown();
1893 3efd8e31 2022-10-23 thomas }
1894 3efd8e31 2022-10-23 thomas
1895 3efd8e31 2022-10-23 thomas void
1896 3efd8e31 2022-10-23 thomas repo_write_shutdown(void)
1897 3efd8e31 2022-10-23 thomas {
1898 92db09ff 2023-02-17 thomas struct repo_write_client *client = &repo_write_client;
1899 92db09ff 2023-02-17 thomas struct gotd_ref_update *ref_update;
1900 92db09ff 2023-02-17 thomas
1901 7161c4dc 2023-03-05 thomas log_debug("shutting down");
1902 92db09ff 2023-02-17 thomas
1903 92db09ff 2023-02-17 thomas while (!STAILQ_EMPTY(&client->ref_updates)) {
1904 92db09ff 2023-02-17 thomas ref_update = STAILQ_FIRST(&client->ref_updates);
1905 92db09ff 2023-02-17 thomas STAILQ_REMOVE_HEAD(&client->ref_updates, entry);
1906 92db09ff 2023-02-17 thomas got_ref_close(ref_update->ref);
1907 92db09ff 2023-02-17 thomas free(ref_update);
1908 92db09ff 2023-02-17 thomas }
1909 92db09ff 2023-02-17 thomas
1910 92db09ff 2023-02-17 thomas got_pack_close(&client->pack);
1911 92db09ff 2023-02-17 thomas if (client->fd != -1)
1912 92db09ff 2023-02-17 thomas close(client->fd);
1913 92db09ff 2023-02-17 thomas if (client->pack_pipe != -1)
1914 92db09ff 2023-02-17 thomas close(client->pack_pipe);
1915 92db09ff 2023-02-17 thomas if (client->packidx_fd != -1)
1916 92db09ff 2023-02-17 thomas close(client->packidx_fd);
1917 92db09ff 2023-02-17 thomas
1918 3efd8e31 2022-10-23 thomas if (repo_write.repo)
1919 3efd8e31 2022-10-23 thomas got_repo_close(repo_write.repo);
1920 3efd8e31 2022-10-23 thomas got_repo_pack_fds_close(repo_write.pack_fds);
1921 80536967 2022-10-30 thomas got_repo_temp_fds_close(repo_write.temp_fds);
1922 62ee7d94 2023-01-10 thomas if (repo_write.session_fd != -1)
1923 62ee7d94 2023-01-10 thomas close(repo_write.session_fd);
1924 3efd8e31 2022-10-23 thomas exit(0);
1925 3efd8e31 2022-10-23 thomas }