2 3efd8e31 2022-10-23 thomas * Copyright (c) 2022 Stefan Sperling <stsp@openbsd.org>
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.
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.
17 4efc8dcb 2023-08-29 thomas #include "got_compat.h"
19 3efd8e31 2022-10-23 thomas #include <sys/queue.h>
20 3efd8e31 2022-10-23 thomas #include <sys/types.h>
22 3efd8e31 2022-10-23 thomas #include <event.h>
23 3efd8e31 2022-10-23 thomas #include <errno.h>
24 3efd8e31 2022-10-23 thomas #include <imsg.h>
25 3efd8e31 2022-10-23 thomas #include <signal.h>
26 3efd8e31 2022-10-23 thomas #include <stdlib.h>
27 3efd8e31 2022-10-23 thomas #include <limits.h>
28 3efd8e31 2022-10-23 thomas #include <poll.h>
29 3efd8e31 2022-10-23 thomas #include <stdio.h>
30 3efd8e31 2022-10-23 thomas #include <string.h>
31 3efd8e31 2022-10-23 thomas #include <unistd.h>
33 3efd8e31 2022-10-23 thomas #include "got_error.h"
34 3efd8e31 2022-10-23 thomas #include "got_cancel.h"
35 3efd8e31 2022-10-23 thomas #include "got_object.h"
36 3efd8e31 2022-10-23 thomas #include "got_repository.h"
37 3efd8e31 2022-10-23 thomas #include "got_reference.h"
38 3efd8e31 2022-10-23 thomas #include "got_repository_admin.h"
39 6d7eb4f7 2023-04-04 thomas #include "got_path.h"
41 3efd8e31 2022-10-23 thomas #include "got_lib_delta.h"
42 3efd8e31 2022-10-23 thomas #include "got_lib_object.h"
43 3efd8e31 2022-10-23 thomas #include "got_lib_object_idset.h"
44 be288a59 2023-02-23 thomas #include "got_lib_hash.h"
45 3efd8e31 2022-10-23 thomas #include "got_lib_pack.h"
46 3efd8e31 2022-10-23 thomas #include "got_lib_ratelimit.h"
47 3efd8e31 2022-10-23 thomas #include "got_lib_pack_create.h"
48 3efd8e31 2022-10-23 thomas #include "got_lib_poll.h"
50 3efd8e31 2022-10-23 thomas #include "log.h"
51 3efd8e31 2022-10-23 thomas #include "gotd.h"
52 3efd8e31 2022-10-23 thomas #include "repo_read.h"
54 3efd8e31 2022-10-23 thomas #ifndef nitems
55 3efd8e31 2022-10-23 thomas #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
58 3efd8e31 2022-10-23 thomas static struct repo_read {
59 3efd8e31 2022-10-23 thomas pid_t pid;
60 3efd8e31 2022-10-23 thomas const char *title;
61 3efd8e31 2022-10-23 thomas struct got_repository *repo;
62 3efd8e31 2022-10-23 thomas int *pack_fds;
63 3efd8e31 2022-10-23 thomas int *temp_fds;
64 62ee7d94 2023-01-10 thomas int session_fd;
65 62ee7d94 2023-01-10 thomas struct gotd_imsgev session_iev;
66 3efd8e31 2022-10-23 thomas } repo_read;
68 9148c8a7 2023-01-02 thomas static struct repo_read_client {
69 3efd8e31 2022-10-23 thomas uint32_t id;
71 3efd8e31 2022-10-23 thomas int delta_cache_fd;
72 3efd8e31 2022-10-23 thomas int report_progress;
73 cc4cc677 2022-10-28 thomas int pack_pipe;
74 19aad72f 2023-03-01 thomas struct got_object_idset *want_ids;
75 19aad72f 2023-03-01 thomas struct got_object_idset *have_ids;
76 9148c8a7 2023-01-02 thomas } repo_read_client;
78 3efd8e31 2022-10-23 thomas static volatile sig_atomic_t sigint_received;
79 3efd8e31 2022-10-23 thomas static volatile sig_atomic_t sigterm_received;
81 3efd8e31 2022-10-23 thomas static void
82 3efd8e31 2022-10-23 thomas catch_sigint(int signo)
84 3efd8e31 2022-10-23 thomas sigint_received = 1;
87 3efd8e31 2022-10-23 thomas static void
88 3efd8e31 2022-10-23 thomas catch_sigterm(int signo)
90 3efd8e31 2022-10-23 thomas sigterm_received = 1;
93 3efd8e31 2022-10-23 thomas static const struct got_error *
94 3efd8e31 2022-10-23 thomas check_cancelled(void *arg)
96 3efd8e31 2022-10-23 thomas if (sigint_received || sigterm_received)
97 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_CANCELLED);
99 3efd8e31 2022-10-23 thomas return NULL;
102 3efd8e31 2022-10-23 thomas static const struct got_error *
103 a7e9cbc6 2022-11-08 thomas send_symref(struct got_reference *symref, struct got_object_id *target_id,
104 a7e9cbc6 2022-11-08 thomas struct imsgbuf *ibuf)
106 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
107 3efd8e31 2022-10-23 thomas struct gotd_imsg_symref isymref;
108 3efd8e31 2022-10-23 thomas const char *refname = got_ref_get_name(symref);
109 3efd8e31 2022-10-23 thomas const char *target = got_ref_get_symref_target(symref);
110 3efd8e31 2022-10-23 thomas size_t len;
111 3efd8e31 2022-10-23 thomas struct ibuf *wbuf;
113 3efd8e31 2022-10-23 thomas memset(&isymref, 0, sizeof(isymref));
114 3efd8e31 2022-10-23 thomas isymref.name_len = strlen(refname);
115 3efd8e31 2022-10-23 thomas isymref.target_len = strlen(target);
116 3efd8e31 2022-10-23 thomas memcpy(isymref.target_id, target_id->sha1, sizeof(isymref.target_id));
118 3efd8e31 2022-10-23 thomas len = sizeof(isymref) + isymref.name_len + isymref.target_len;
119 3efd8e31 2022-10-23 thomas if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
120 3efd8e31 2022-10-23 thomas err = got_error(GOT_ERR_NO_SPACE);
121 3efd8e31 2022-10-23 thomas goto done;
124 3efd8e31 2022-10-23 thomas wbuf = imsg_create(ibuf, GOTD_IMSG_SYMREF, 0, 0, len);
125 3efd8e31 2022-10-23 thomas if (wbuf == NULL) {
126 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_create SYMREF");
127 3efd8e31 2022-10-23 thomas goto done;
130 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, &isymref, sizeof(isymref)) == -1) {
131 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_add SYMREF");
132 3efd8e31 2022-10-23 thomas goto done;
134 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, refname, isymref.name_len) == -1) {
135 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_add SYMREF");
136 3efd8e31 2022-10-23 thomas goto done;
138 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, target, isymref.target_len) == -1) {
139 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_add SYMREF");
140 3efd8e31 2022-10-23 thomas goto done;
143 3efd8e31 2022-10-23 thomas imsg_close(ibuf, wbuf);
145 3efd8e31 2022-10-23 thomas free(target_id);
146 3efd8e31 2022-10-23 thomas return err;
149 3efd8e31 2022-10-23 thomas static const struct got_error *
150 3efd8e31 2022-10-23 thomas send_peeled_tag_ref(struct got_reference *ref, struct got_object *obj,
151 3efd8e31 2022-10-23 thomas struct imsgbuf *ibuf)
153 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
154 3efd8e31 2022-10-23 thomas struct got_tag_object *tag;
155 3efd8e31 2022-10-23 thomas size_t namelen, len;
156 3efd8e31 2022-10-23 thomas char *peeled_refname = NULL;
157 3efd8e31 2022-10-23 thomas struct got_object_id *id;
158 3efd8e31 2022-10-23 thomas struct ibuf *wbuf;
160 3efd8e31 2022-10-23 thomas err = got_object_tag_open(&tag, repo_read.repo, obj);
162 3efd8e31 2022-10-23 thomas return err;
164 3efd8e31 2022-10-23 thomas if (asprintf(&peeled_refname, "%s^{}", got_ref_get_name(ref)) == -1) {
165 3efd8e31 2022-10-23 thomas err = got_error_from_errno("asprintf");
166 3efd8e31 2022-10-23 thomas goto done;
169 3efd8e31 2022-10-23 thomas id = got_object_tag_get_object_id(tag);
170 3efd8e31 2022-10-23 thomas namelen = strlen(peeled_refname);
172 3efd8e31 2022-10-23 thomas len = sizeof(struct gotd_imsg_ref) + namelen;
173 3efd8e31 2022-10-23 thomas if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
174 3efd8e31 2022-10-23 thomas err = got_error(GOT_ERR_NO_SPACE);
175 3efd8e31 2022-10-23 thomas goto done;
178 3efd8e31 2022-10-23 thomas wbuf = imsg_create(ibuf, GOTD_IMSG_REF, PROC_REPO_READ,
179 3efd8e31 2022-10-23 thomas repo_read.pid, len);
180 3efd8e31 2022-10-23 thomas if (wbuf == NULL) {
181 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_create MREF");
182 3efd8e31 2022-10-23 thomas goto done;
185 3efd8e31 2022-10-23 thomas /* Keep in sync with struct gotd_imsg_ref definition. */
186 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1) {
187 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_add REF");
188 3efd8e31 2022-10-23 thomas goto done;
190 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, &namelen, sizeof(namelen)) == -1) {
191 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_add REF");
192 3efd8e31 2022-10-23 thomas goto done;
194 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, peeled_refname, namelen) == -1) {
195 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_add REF");
196 3efd8e31 2022-10-23 thomas goto done;
199 3efd8e31 2022-10-23 thomas imsg_close(ibuf, wbuf);
201 3efd8e31 2022-10-23 thomas got_object_tag_close(tag);
202 3efd8e31 2022-10-23 thomas return err;
205 3efd8e31 2022-10-23 thomas static const struct got_error *
206 3efd8e31 2022-10-23 thomas send_ref(struct got_reference *ref, struct imsgbuf *ibuf)
208 3efd8e31 2022-10-23 thomas const struct got_error *err;
209 3efd8e31 2022-10-23 thomas const char *refname = got_ref_get_name(ref);
210 3efd8e31 2022-10-23 thomas size_t namelen;
211 3efd8e31 2022-10-23 thomas struct got_object_id *id = NULL;
212 3efd8e31 2022-10-23 thomas struct got_object *obj = NULL;
213 3efd8e31 2022-10-23 thomas size_t len;
214 3efd8e31 2022-10-23 thomas struct ibuf *wbuf;
216 3efd8e31 2022-10-23 thomas namelen = strlen(refname);
218 3efd8e31 2022-10-23 thomas len = sizeof(struct gotd_imsg_ref) + namelen;
219 3efd8e31 2022-10-23 thomas if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
220 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_NO_SPACE);
222 3efd8e31 2022-10-23 thomas err = got_ref_resolve(&id, repo_read.repo, ref);
224 3efd8e31 2022-10-23 thomas return err;
226 3efd8e31 2022-10-23 thomas wbuf = imsg_create(ibuf, GOTD_IMSG_REF, PROC_REPO_READ,
227 3efd8e31 2022-10-23 thomas repo_read.pid, len);
228 3efd8e31 2022-10-23 thomas if (wbuf == NULL) {
229 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_create REF");
230 3efd8e31 2022-10-23 thomas goto done;
233 3efd8e31 2022-10-23 thomas /* Keep in sync with struct gotd_imsg_ref definition. */
234 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1)
235 3efd8e31 2022-10-23 thomas return got_error_from_errno("imsg_add REF");
236 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, &namelen, sizeof(namelen)) == -1)
237 3efd8e31 2022-10-23 thomas return got_error_from_errno("imsg_add REF");
238 3efd8e31 2022-10-23 thomas if (imsg_add(wbuf, refname, namelen) == -1)
239 3efd8e31 2022-10-23 thomas return got_error_from_errno("imsg_add REF");
241 3efd8e31 2022-10-23 thomas imsg_close(ibuf, wbuf);
243 3efd8e31 2022-10-23 thomas err = got_object_open(&obj, repo_read.repo, id);
245 3efd8e31 2022-10-23 thomas goto done;
246 3efd8e31 2022-10-23 thomas if (obj->type == GOT_OBJ_TYPE_TAG)
247 3efd8e31 2022-10-23 thomas err = send_peeled_tag_ref(ref, obj, ibuf);
250 3efd8e31 2022-10-23 thomas got_object_close(obj);
251 3efd8e31 2022-10-23 thomas free(id);
252 3efd8e31 2022-10-23 thomas return err;
255 3efd8e31 2022-10-23 thomas static const struct got_error *
256 9148c8a7 2023-01-02 thomas list_refs(struct imsg *imsg)
258 3efd8e31 2022-10-23 thomas const struct got_error *err;
259 9148c8a7 2023-01-02 thomas struct repo_read_client *client = &repo_read_client;
260 3efd8e31 2022-10-23 thomas struct got_reflist_head refs;
261 3efd8e31 2022-10-23 thomas struct got_reflist_entry *re;
262 3efd8e31 2022-10-23 thomas struct gotd_imsg_list_refs_internal ireq;
263 3efd8e31 2022-10-23 thomas size_t datalen;
264 3efd8e31 2022-10-23 thomas struct gotd_imsg_reflist irefs;
265 3efd8e31 2022-10-23 thomas struct imsgbuf ibuf;
266 3d97effa 2024-01-31 thomas int client_fd;
267 a7e9cbc6 2022-11-08 thomas struct got_object_id *head_target_id = NULL;
269 3efd8e31 2022-10-23 thomas TAILQ_INIT(&refs);
271 3d97effa 2024-01-31 thomas client_fd = imsg_get_fd(imsg);
272 3efd8e31 2022-10-23 thomas if (client_fd == -1)
273 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_NO_FD);
275 3efd8e31 2022-10-23 thomas datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
276 3efd8e31 2022-10-23 thomas if (datalen != sizeof(ireq))
277 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_LEN);
278 3efd8e31 2022-10-23 thomas memcpy(&ireq, imsg->data, sizeof(ireq));
280 9148c8a7 2023-01-02 thomas if (ireq.client_id == 0)
281 9148c8a7 2023-01-02 thomas return got_error(GOT_ERR_CLIENT_ID);
282 9148c8a7 2023-01-02 thomas if (client->id != 0) {
283 9148c8a7 2023-01-02 thomas return got_error_msg(GOT_ERR_CLIENT_ID,
284 9148c8a7 2023-01-02 thomas "duplicate list-refs request");
286 9148c8a7 2023-01-02 thomas client->id = ireq.client_id;
287 9148c8a7 2023-01-02 thomas client->fd = client_fd;
289 3efd8e31 2022-10-23 thomas imsg_init(&ibuf, client_fd);
291 3efd8e31 2022-10-23 thomas err = got_ref_list(&refs, repo_read.repo, "",
292 3efd8e31 2022-10-23 thomas got_ref_cmp_by_name, NULL);
294 3efd8e31 2022-10-23 thomas return err;
296 3efd8e31 2022-10-23 thomas memset(&irefs, 0, sizeof(irefs));
297 3efd8e31 2022-10-23 thomas TAILQ_FOREACH(re, &refs, entry) {
298 3efd8e31 2022-10-23 thomas struct got_object_id *id;
299 3efd8e31 2022-10-23 thomas int obj_type;
301 3efd8e31 2022-10-23 thomas if (got_ref_is_symbolic(re->ref)) {
302 3efd8e31 2022-10-23 thomas const char *refname = got_ref_get_name(re->ref);
303 a7e9cbc6 2022-11-08 thomas if (strcmp(refname, GOT_REF_HEAD) != 0)
304 a7e9cbc6 2022-11-08 thomas continue;
305 a7e9cbc6 2022-11-08 thomas err = got_ref_resolve(&head_target_id, repo_read.repo,
306 a7e9cbc6 2022-11-08 thomas re->ref);
307 a7e9cbc6 2022-11-08 thomas if (err) {
308 a7e9cbc6 2022-11-08 thomas if (err->code != GOT_ERR_NOT_REF)
309 a7e9cbc6 2022-11-08 thomas return err;
311 a7e9cbc6 2022-11-08 thomas * HEAD points to a non-existent branch.
312 a7e9cbc6 2022-11-08 thomas * Do not advertise it.
313 a7e9cbc6 2022-11-08 thomas * Matches git-daemon's behaviour.
315 a7e9cbc6 2022-11-08 thomas head_target_id = NULL;
316 a7e9cbc6 2022-11-08 thomas err = NULL;
318 3efd8e31 2022-10-23 thomas irefs.nrefs++;
319 3efd8e31 2022-10-23 thomas continue;
322 3efd8e31 2022-10-23 thomas irefs.nrefs++;
324 3efd8e31 2022-10-23 thomas /* Account for a peeled tag refs. */
325 3efd8e31 2022-10-23 thomas err = got_ref_resolve(&id, repo_read.repo, re->ref);
327 3efd8e31 2022-10-23 thomas goto done;
328 8652e561 2023-01-14 thomas err = got_object_get_type(&obj_type, repo_read.repo, id);
329 3efd8e31 2022-10-23 thomas free(id);
331 3efd8e31 2022-10-23 thomas goto done;
332 3efd8e31 2022-10-23 thomas if (obj_type == GOT_OBJ_TYPE_TAG)
333 3efd8e31 2022-10-23 thomas irefs.nrefs++;
336 3efd8e31 2022-10-23 thomas if (imsg_compose(&ibuf, GOTD_IMSG_REFLIST, PROC_REPO_READ,
337 3efd8e31 2022-10-23 thomas repo_read.pid, -1, &irefs, sizeof(irefs)) == -1) {
338 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg_compose REFLIST");
339 3efd8e31 2022-10-23 thomas goto done;
343 3efd8e31 2022-10-23 thomas * Send the HEAD symref first. In Git-protocol versions < 2
344 3efd8e31 2022-10-23 thomas * the HEAD symref must be announced on the initial line of
345 3efd8e31 2022-10-23 thomas * the server's ref advertisement.
346 3efd8e31 2022-10-23 thomas * For now, we do not advertise symrefs other than HEAD.
348 3efd8e31 2022-10-23 thomas TAILQ_FOREACH(re, &refs, entry) {
349 3efd8e31 2022-10-23 thomas if (!got_ref_is_symbolic(re->ref) ||
350 a7e9cbc6 2022-11-08 thomas strcmp(got_ref_get_name(re->ref), GOT_REF_HEAD) != 0 ||
351 a7e9cbc6 2022-11-08 thomas head_target_id == NULL)
352 3efd8e31 2022-10-23 thomas continue;
353 a7e9cbc6 2022-11-08 thomas err = send_symref(re->ref, head_target_id, &ibuf);
355 3efd8e31 2022-10-23 thomas goto done;
358 3efd8e31 2022-10-23 thomas TAILQ_FOREACH(re, &refs, entry) {
359 3efd8e31 2022-10-23 thomas if (got_ref_is_symbolic(re->ref))
360 3efd8e31 2022-10-23 thomas continue;
361 3efd8e31 2022-10-23 thomas err = send_ref(re->ref, &ibuf);
363 3efd8e31 2022-10-23 thomas goto done;
366 3efd8e31 2022-10-23 thomas err = gotd_imsg_flush(&ibuf);
368 3efd8e31 2022-10-23 thomas got_ref_list_free(&refs);
369 3efd8e31 2022-10-23 thomas imsg_clear(&ibuf);
370 3efd8e31 2022-10-23 thomas return err;
373 3efd8e31 2022-10-23 thomas static const struct got_error *
374 19aad72f 2023-03-01 thomas append_object_id(struct got_object_id *id, void *data, void *arg)
376 19aad72f 2023-03-01 thomas struct gotd_object_id_array *array = arg;
377 3efd8e31 2022-10-23 thomas const size_t alloc_chunksz = 256;
379 3efd8e31 2022-10-23 thomas if (array->ids == NULL) {
380 3efd8e31 2022-10-23 thomas array->ids = reallocarray(NULL, alloc_chunksz,
381 3efd8e31 2022-10-23 thomas sizeof(*array->ids));
382 3efd8e31 2022-10-23 thomas if (array->ids == NULL)
383 3efd8e31 2022-10-23 thomas return got_error_from_errno("reallocarray");
384 3efd8e31 2022-10-23 thomas array->nalloc = alloc_chunksz;
385 3efd8e31 2022-10-23 thomas array->nids = 0;
386 3efd8e31 2022-10-23 thomas } else if (array->nalloc <= array->nids) {
387 3efd8e31 2022-10-23 thomas struct got_object_id **new;
388 3efd8e31 2022-10-23 thomas new = recallocarray(array->ids, array->nalloc,
389 3efd8e31 2022-10-23 thomas array->nalloc + alloc_chunksz, sizeof(*new));
390 3efd8e31 2022-10-23 thomas if (new == NULL)
391 3efd8e31 2022-10-23 thomas return got_error_from_errno("recallocarray");
392 3efd8e31 2022-10-23 thomas array->ids = new;
393 3efd8e31 2022-10-23 thomas array->nalloc += alloc_chunksz;
396 19aad72f 2023-03-01 thomas array->ids[array->nids] = id;
397 3efd8e31 2022-10-23 thomas array->nids++;
398 3efd8e31 2022-10-23 thomas return NULL;
401 3efd8e31 2022-10-23 thomas static const struct got_error *
402 9148c8a7 2023-01-02 thomas recv_want(struct imsg *imsg)
404 3efd8e31 2022-10-23 thomas const struct got_error *err;
405 9148c8a7 2023-01-02 thomas struct repo_read_client *client = &repo_read_client;
406 3efd8e31 2022-10-23 thomas struct gotd_imsg_want iwant;
407 3efd8e31 2022-10-23 thomas size_t datalen;
408 3efd8e31 2022-10-23 thomas char hex[SHA1_DIGEST_STRING_LENGTH];
409 3efd8e31 2022-10-23 thomas struct got_object_id id;
410 3efd8e31 2022-10-23 thomas int obj_type;
411 3efd8e31 2022-10-23 thomas struct imsgbuf ibuf;
413 3efd8e31 2022-10-23 thomas datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
414 3efd8e31 2022-10-23 thomas if (datalen != sizeof(iwant))
415 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_LEN);
416 3efd8e31 2022-10-23 thomas memcpy(&iwant, imsg->data, sizeof(iwant));
418 3efd8e31 2022-10-23 thomas memset(&id, 0, sizeof(id));
419 3efd8e31 2022-10-23 thomas memcpy(id.sha1, iwant.object_id, SHA1_DIGEST_LENGTH);
421 3efd8e31 2022-10-23 thomas if (log_getverbose() > 0 &&
422 3efd8e31 2022-10-23 thomas got_sha1_digest_to_str(id.sha1, hex, sizeof(hex)))
423 3efd8e31 2022-10-23 thomas log_debug("client wants %s", hex);
425 9148c8a7 2023-01-02 thomas imsg_init(&ibuf, client->fd);
427 3efd8e31 2022-10-23 thomas err = got_object_get_type(&obj_type, repo_read.repo, &id);
429 3efd8e31 2022-10-23 thomas return err;
431 3efd8e31 2022-10-23 thomas if (obj_type != GOT_OBJ_TYPE_COMMIT &&
432 3efd8e31 2022-10-23 thomas obj_type != GOT_OBJ_TYPE_TAG)
433 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_OBJ_TYPE);
435 19aad72f 2023-03-01 thomas if (!got_object_idset_contains(client->want_ids, &id)) {
436 19aad72f 2023-03-01 thomas err = got_object_idset_add(client->want_ids, &id, NULL);
438 19aad72f 2023-03-01 thomas return err;
441 3efd8e31 2022-10-23 thomas gotd_imsg_send_ack(&id, &ibuf, PROC_REPO_READ, repo_read.pid);
442 3efd8e31 2022-10-23 thomas imsg_clear(&ibuf);
443 3efd8e31 2022-10-23 thomas return err;
446 3efd8e31 2022-10-23 thomas static const struct got_error *
447 9148c8a7 2023-01-02 thomas recv_have(struct imsg *imsg)
449 3efd8e31 2022-10-23 thomas const struct got_error *err;
450 9148c8a7 2023-01-02 thomas struct repo_read_client *client = &repo_read_client;
451 3efd8e31 2022-10-23 thomas struct gotd_imsg_have ihave;
452 3efd8e31 2022-10-23 thomas size_t datalen;
453 3efd8e31 2022-10-23 thomas char hex[SHA1_DIGEST_STRING_LENGTH];
454 3efd8e31 2022-10-23 thomas struct got_object_id id;
455 3efd8e31 2022-10-23 thomas int obj_type;
456 3efd8e31 2022-10-23 thomas struct imsgbuf ibuf;
458 3efd8e31 2022-10-23 thomas datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
459 3efd8e31 2022-10-23 thomas if (datalen != sizeof(ihave))
460 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_LEN);
461 3efd8e31 2022-10-23 thomas memcpy(&ihave, imsg->data, sizeof(ihave));
463 3efd8e31 2022-10-23 thomas memset(&id, 0, sizeof(id));
464 3efd8e31 2022-10-23 thomas memcpy(id.sha1, ihave.object_id, SHA1_DIGEST_LENGTH);
466 3efd8e31 2022-10-23 thomas if (log_getverbose() > 0 &&
467 3efd8e31 2022-10-23 thomas got_sha1_digest_to_str(id.sha1, hex, sizeof(hex)))
468 3efd8e31 2022-10-23 thomas log_debug("client has %s", hex);
470 9148c8a7 2023-01-02 thomas imsg_init(&ibuf, client->fd);
472 3efd8e31 2022-10-23 thomas err = got_object_get_type(&obj_type, repo_read.repo, &id);
473 3efd8e31 2022-10-23 thomas if (err) {
474 3efd8e31 2022-10-23 thomas if (err->code == GOT_ERR_NO_OBJ) {
475 3efd8e31 2022-10-23 thomas gotd_imsg_send_nak(&id, &ibuf,
476 3efd8e31 2022-10-23 thomas PROC_REPO_READ, repo_read.pid);
477 3efd8e31 2022-10-23 thomas err = NULL;
479 3efd8e31 2022-10-23 thomas goto done;
482 3efd8e31 2022-10-23 thomas if (obj_type != GOT_OBJ_TYPE_COMMIT &&
483 3efd8e31 2022-10-23 thomas obj_type != GOT_OBJ_TYPE_TAG) {
484 3efd8e31 2022-10-23 thomas gotd_imsg_send_nak(&id, &ibuf, PROC_REPO_READ, repo_read.pid);
485 3efd8e31 2022-10-23 thomas err = got_error(GOT_ERR_OBJ_TYPE);
486 3efd8e31 2022-10-23 thomas goto done;
489 19aad72f 2023-03-01 thomas if (!got_object_idset_contains(client->have_ids, &id)) {
490 19aad72f 2023-03-01 thomas err = got_object_idset_add(client->have_ids, &id, NULL);
492 19aad72f 2023-03-01 thomas goto done;
495 3efd8e31 2022-10-23 thomas gotd_imsg_send_ack(&id, &ibuf, PROC_REPO_READ, repo_read.pid);
497 3efd8e31 2022-10-23 thomas imsg_clear(&ibuf);
498 3efd8e31 2022-10-23 thomas return err;
501 3efd8e31 2022-10-23 thomas struct repo_read_pack_progress_arg {
502 3efd8e31 2022-10-23 thomas int report_progress;
503 3efd8e31 2022-10-23 thomas struct imsgbuf *ibuf;
504 3efd8e31 2022-10-23 thomas int sent_ready;
507 3efd8e31 2022-10-23 thomas static const struct got_error *
508 3efd8e31 2022-10-23 thomas pack_progress(void *arg, int ncolored, int nfound, int ntrees,
509 3efd8e31 2022-10-23 thomas off_t packfile_size, int ncommits, int nobj_total, int nobj_deltify,
510 3efd8e31 2022-10-23 thomas int nobj_written)
512 3efd8e31 2022-10-23 thomas struct repo_read_pack_progress_arg *a = arg;
513 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_progress iprog;
516 3efd8e31 2022-10-23 thomas if (!a->report_progress)
517 3efd8e31 2022-10-23 thomas return NULL;
518 3efd8e31 2022-10-23 thomas if (packfile_size > 0 && a->sent_ready)
519 3efd8e31 2022-10-23 thomas return NULL;
521 3efd8e31 2022-10-23 thomas memset(&iprog, 0, sizeof(iprog));
522 3efd8e31 2022-10-23 thomas iprog.ncolored = ncolored;
523 3efd8e31 2022-10-23 thomas iprog.nfound = nfound;
524 3efd8e31 2022-10-23 thomas iprog.ntrees = ntrees;
525 3efd8e31 2022-10-23 thomas iprog.packfile_size = packfile_size;
526 3efd8e31 2022-10-23 thomas iprog.ncommits = ncommits;
527 3efd8e31 2022-10-23 thomas iprog.nobj_total = nobj_total;
528 3efd8e31 2022-10-23 thomas iprog.nobj_deltify = nobj_deltify;
529 3efd8e31 2022-10-23 thomas iprog.nobj_written = nobj_written;
531 3efd8e31 2022-10-23 thomas /* Using synchronous writes since we are blocking the event loop. */
532 3efd8e31 2022-10-23 thomas if (packfile_size == 0) {
533 3efd8e31 2022-10-23 thomas ret = imsg_compose(a->ibuf, GOTD_IMSG_PACKFILE_PROGRESS,
534 3efd8e31 2022-10-23 thomas PROC_REPO_READ, repo_read.pid, -1, &iprog, sizeof(iprog));
535 3efd8e31 2022-10-23 thomas if (ret == -1) {
536 3efd8e31 2022-10-23 thomas return got_error_from_errno("imsg compose "
537 3efd8e31 2022-10-23 thomas "PACKFILE_PROGRESS");
540 3efd8e31 2022-10-23 thomas a->sent_ready = 1;
541 3efd8e31 2022-10-23 thomas ret = imsg_compose(a->ibuf, GOTD_IMSG_PACKFILE_READY,
542 3efd8e31 2022-10-23 thomas PROC_REPO_READ, repo_read.pid, -1, &iprog, sizeof(iprog));
543 3efd8e31 2022-10-23 thomas if (ret == -1) {
544 3efd8e31 2022-10-23 thomas return got_error_from_errno("imsg compose "
545 3efd8e31 2022-10-23 thomas "PACKFILE_READY");
549 3efd8e31 2022-10-23 thomas return gotd_imsg_flush(a->ibuf);
552 3efd8e31 2022-10-23 thomas static const struct got_error *
553 9148c8a7 2023-01-02 thomas receive_delta_cache_fd(struct imsg *imsg,
554 3efd8e31 2022-10-23 thomas struct gotd_imsgev *iev)
556 9148c8a7 2023-01-02 thomas struct repo_read_client *client = &repo_read_client;
557 3efd8e31 2022-10-23 thomas struct gotd_imsg_send_packfile ireq;
558 3efd8e31 2022-10-23 thomas size_t datalen;
560 ff553ea7 2023-04-22 thomas log_debug("receiving delta cache file");
562 3efd8e31 2022-10-23 thomas datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
563 3efd8e31 2022-10-23 thomas if (datalen != sizeof(ireq))
564 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_LEN);
565 3efd8e31 2022-10-23 thomas memcpy(&ireq, imsg->data, sizeof(ireq));
567 9148c8a7 2023-01-02 thomas if (client->delta_cache_fd != -1)
568 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_MSG);
570 3d97effa 2024-01-31 thomas client->delta_cache_fd = imsg_get_fd(imsg);
571 3d97effa 2024-01-31 thomas if (client->delta_cache_fd == -1)
572 3d97effa 2024-01-31 thomas return got_error(GOT_ERR_PRIVSEP_NO_FD);
574 9148c8a7 2023-01-02 thomas client->report_progress = ireq.report_progress;
575 3efd8e31 2022-10-23 thomas return NULL;
578 3efd8e31 2022-10-23 thomas static const struct got_error *
579 9148c8a7 2023-01-02 thomas receive_pack_pipe(struct imsg *imsg, struct gotd_imsgev *iev)
581 9148c8a7 2023-01-02 thomas struct repo_read_client *client = &repo_read_client;
582 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_pipe ireq;
583 3efd8e31 2022-10-23 thomas size_t datalen;
585 ff553ea7 2023-04-22 thomas log_debug("receiving pack pipe descriptor");
587 3efd8e31 2022-10-23 thomas datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
588 3efd8e31 2022-10-23 thomas if (datalen != sizeof(ireq))
589 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_LEN);
590 3efd8e31 2022-10-23 thomas memcpy(&ireq, imsg->data, sizeof(ireq));
592 9148c8a7 2023-01-02 thomas if (client->pack_pipe != -1)
593 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_MSG);
595 3d97effa 2024-01-31 thomas client->pack_pipe = imsg_get_fd(imsg);
596 3d97effa 2024-01-31 thomas if (client->pack_pipe == -1)
597 3d97effa 2024-01-31 thomas return got_error(GOT_ERR_PRIVSEP_NO_FD);
599 3efd8e31 2022-10-23 thomas return NULL;
602 3efd8e31 2022-10-23 thomas static const struct got_error *
603 9148c8a7 2023-01-02 thomas send_packfile(struct imsg *imsg, struct gotd_imsgev *iev)
605 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
606 9148c8a7 2023-01-02 thomas struct repo_read_client *client = &repo_read_client;
607 3efd8e31 2022-10-23 thomas struct gotd_imsg_packfile_done idone;
608 3efd8e31 2022-10-23 thomas uint8_t packsha1[SHA1_DIGEST_LENGTH];
609 3efd8e31 2022-10-23 thomas char hex[SHA1_DIGEST_STRING_LENGTH];
610 3efd8e31 2022-10-23 thomas FILE *delta_cache = NULL;
611 3efd8e31 2022-10-23 thomas struct imsgbuf ibuf;
612 3efd8e31 2022-10-23 thomas struct repo_read_pack_progress_arg pa;
613 3efd8e31 2022-10-23 thomas struct got_ratelimit rl;
614 19aad72f 2023-03-01 thomas struct gotd_object_id_array want_ids;
615 19aad72f 2023-03-01 thomas struct gotd_object_id_array have_ids;
617 3efd8e31 2022-10-23 thomas log_debug("packfile request received");
619 19aad72f 2023-03-01 thomas memset(&want_ids, 0, sizeof(want_ids));
620 19aad72f 2023-03-01 thomas memset(&have_ids, 0, sizeof(have_ids));
622 3efd8e31 2022-10-23 thomas got_ratelimit_init(&rl, 2, 0);
624 cc4cc677 2022-10-28 thomas if (client->delta_cache_fd == -1 || client->pack_pipe == -1)
625 3efd8e31 2022-10-23 thomas return got_error(GOT_ERR_PRIVSEP_NO_FD);
627 3efd8e31 2022-10-23 thomas imsg_init(&ibuf, client->fd);
629 3efd8e31 2022-10-23 thomas delta_cache = fdopen(client->delta_cache_fd, "w+");
630 3efd8e31 2022-10-23 thomas if (delta_cache == NULL) {
631 3efd8e31 2022-10-23 thomas err = got_error_from_errno("fdopen");
632 3efd8e31 2022-10-23 thomas goto done;
634 3efd8e31 2022-10-23 thomas client->delta_cache_fd = -1;
636 3efd8e31 2022-10-23 thomas memset(&pa, 0, sizeof(pa));
637 3efd8e31 2022-10-23 thomas pa.ibuf = &ibuf;
638 3efd8e31 2022-10-23 thomas pa.report_progress = client->report_progress;
640 19aad72f 2023-03-01 thomas err = got_object_idset_for_each(client->want_ids,
641 19aad72f 2023-03-01 thomas append_object_id, &want_ids);
643 19aad72f 2023-03-01 thomas goto done;
644 19aad72f 2023-03-01 thomas err = got_object_idset_for_each(client->have_ids,
645 19aad72f 2023-03-01 thomas append_object_id, &have_ids);
647 19aad72f 2023-03-01 thomas goto done;
649 cc4cc677 2022-10-28 thomas err = got_pack_create(packsha1, client->pack_pipe, delta_cache,
650 19aad72f 2023-03-01 thomas have_ids.ids, have_ids.nids, want_ids.ids, want_ids.nids,
651 91b1d456 2023-02-17 thomas repo_read.repo, 0, 1, 0, pack_progress, &pa, &rl,
652 3efd8e31 2022-10-23 thomas check_cancelled, NULL);
654 3efd8e31 2022-10-23 thomas goto done;
656 3efd8e31 2022-10-23 thomas if (log_getverbose() > 0 &&
657 3efd8e31 2022-10-23 thomas got_sha1_digest_to_str(packsha1, hex, sizeof(hex)))
658 3efd8e31 2022-10-23 thomas log_debug("sent pack-%s.pack", hex);
660 3efd8e31 2022-10-23 thomas memset(&idone, 0, sizeof(idone));
661 3efd8e31 2022-10-23 thomas idone.client_id = client->id;
662 3efd8e31 2022-10-23 thomas if (gotd_imsg_compose_event(iev, GOTD_IMSG_PACKFILE_DONE,
663 3efd8e31 2022-10-23 thomas PROC_REPO_READ, -1, &idone, sizeof(idone)) == -1)
664 3efd8e31 2022-10-23 thomas err = got_error_from_errno("imsg compose PACKFILE_DONE");
666 815470d4 2024-01-31 thomas if (client->delta_cache_fd != -1 &&
667 815470d4 2024-01-31 thomas close(client->delta_cache_fd) == -1 && err == NULL)
668 815470d4 2024-01-31 thomas err = got_error_from_errno("close");
669 815470d4 2024-01-31 thomas client->delta_cache_fd = -1;
670 3efd8e31 2022-10-23 thomas if (delta_cache != NULL && fclose(delta_cache) == EOF && err == NULL)
671 3efd8e31 2022-10-23 thomas err = got_error_from_errno("fclose");
672 3efd8e31 2022-10-23 thomas imsg_clear(&ibuf);
673 19aad72f 2023-03-01 thomas free(want_ids.ids);
674 19aad72f 2023-03-01 thomas free(have_ids.ids);
675 3efd8e31 2022-10-23 thomas return err;
678 3efd8e31 2022-10-23 thomas static void
679 62ee7d94 2023-01-10 thomas repo_read_dispatch_session(int fd, short event, void *arg)
681 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
682 3efd8e31 2022-10-23 thomas struct gotd_imsgev *iev = arg;
683 3efd8e31 2022-10-23 thomas struct imsgbuf *ibuf = &iev->ibuf;
684 3efd8e31 2022-10-23 thomas struct imsg imsg;
685 3efd8e31 2022-10-23 thomas ssize_t n;
686 3efd8e31 2022-10-23 thomas int shut = 0;
687 9148c8a7 2023-01-02 thomas struct repo_read_client *client = &repo_read_client;
689 3efd8e31 2022-10-23 thomas if (event & EV_READ) {
690 3efd8e31 2022-10-23 thomas if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN)
691 3efd8e31 2022-10-23 thomas fatal("imsg_read error");
692 3efd8e31 2022-10-23 thomas if (n == 0) /* Connection closed. */
693 3efd8e31 2022-10-23 thomas shut = 1;
696 3efd8e31 2022-10-23 thomas if (event & EV_WRITE) {
697 3efd8e31 2022-10-23 thomas n = msgbuf_write(&ibuf->w);
698 3efd8e31 2022-10-23 thomas if (n == -1 && errno != EAGAIN)
699 3efd8e31 2022-10-23 thomas fatal("msgbuf_write");
700 3efd8e31 2022-10-23 thomas if (n == 0) /* Connection closed. */
701 3efd8e31 2022-10-23 thomas shut = 1;
704 3efd8e31 2022-10-23 thomas while (err == NULL && check_cancelled(NULL) == NULL) {
705 3efd8e31 2022-10-23 thomas if ((n = imsg_get(ibuf, &imsg)) == -1)
706 3efd8e31 2022-10-23 thomas fatal("%s: imsg_get", __func__);
707 3efd8e31 2022-10-23 thomas if (n == 0) /* No more messages. */
710 9148c8a7 2023-01-02 thomas if (imsg.hdr.type != GOTD_IMSG_LIST_REFS_INTERNAL &&
711 9148c8a7 2023-01-02 thomas client->id == 0) {
712 9148c8a7 2023-01-02 thomas err = got_error(GOT_ERR_PRIVSEP_MSG);
716 3efd8e31 2022-10-23 thomas switch (imsg.hdr.type) {
717 3efd8e31 2022-10-23 thomas case GOTD_IMSG_LIST_REFS_INTERNAL:
718 9148c8a7 2023-01-02 thomas err = list_refs(&imsg);
720 42f290d4 2023-03-05 thomas log_warnx("ls-refs: %s", err->msg);
722 3efd8e31 2022-10-23 thomas case GOTD_IMSG_WANT:
723 9148c8a7 2023-01-02 thomas err = recv_want(&imsg);
725 42f290d4 2023-03-05 thomas log_warnx("want-line: %s", err->msg);
727 3efd8e31 2022-10-23 thomas case GOTD_IMSG_HAVE:
728 9148c8a7 2023-01-02 thomas err = recv_have(&imsg);
730 42f290d4 2023-03-05 thomas log_warnx("have-line: %s", err->msg);
732 3efd8e31 2022-10-23 thomas case GOTD_IMSG_SEND_PACKFILE:
733 9148c8a7 2023-01-02 thomas err = receive_delta_cache_fd(&imsg, iev);
735 42f290d4 2023-03-05 thomas log_warnx("receiving delta cache: %s",
736 42f290d4 2023-03-05 thomas err->msg);
738 3efd8e31 2022-10-23 thomas case GOTD_IMSG_PACKFILE_PIPE:
739 9148c8a7 2023-01-02 thomas err = receive_pack_pipe(&imsg, iev);
740 3efd8e31 2022-10-23 thomas if (err) {
741 42f290d4 2023-03-05 thomas log_warnx("receiving pack pipe: %s", err->msg);
744 9148c8a7 2023-01-02 thomas err = send_packfile(&imsg, iev);
746 42f290d4 2023-03-05 thomas log_warnx("sending packfile: %s", err->msg);
749 42f290d4 2023-03-05 thomas log_debug("unexpected imsg %d", imsg.hdr.type);
753 62ee7d94 2023-01-10 thomas imsg_free(&imsg);
756 62ee7d94 2023-01-10 thomas if (!shut && check_cancelled(NULL) == NULL) {
757 62ee7d94 2023-01-10 thomas if (err &&
758 62ee7d94 2023-01-10 thomas gotd_imsg_send_error_event(iev, PROC_REPO_READ,
759 62ee7d94 2023-01-10 thomas client->id, err) == -1) {
760 62ee7d94 2023-01-10 thomas log_warnx("could not send error to parent: %s",
761 62ee7d94 2023-01-10 thomas err->msg);
763 62ee7d94 2023-01-10 thomas gotd_imsg_event_add(iev);
765 62ee7d94 2023-01-10 thomas /* This pipe is dead. Remove its event handler */
766 62ee7d94 2023-01-10 thomas event_del(&iev->ev);
767 62ee7d94 2023-01-10 thomas event_loopexit(NULL);
771 62ee7d94 2023-01-10 thomas static const struct got_error *
772 62ee7d94 2023-01-10 thomas recv_connect(struct imsg *imsg)
774 62ee7d94 2023-01-10 thomas struct gotd_imsgev *iev = &repo_read.session_iev;
775 62ee7d94 2023-01-10 thomas size_t datalen;
777 62ee7d94 2023-01-10 thomas datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
778 62ee7d94 2023-01-10 thomas if (datalen != 0)
779 62ee7d94 2023-01-10 thomas return got_error(GOT_ERR_PRIVSEP_LEN);
781 62ee7d94 2023-01-10 thomas if (repo_read.session_fd != -1)
782 62ee7d94 2023-01-10 thomas return got_error(GOT_ERR_PRIVSEP_MSG);
784 3d97effa 2024-01-31 thomas repo_read.session_fd = imsg_get_fd(imsg);
785 3d97effa 2024-01-31 thomas if (repo_read.session_fd == -1)
786 3d97effa 2024-01-31 thomas return got_error(GOT_ERR_PRIVSEP_NO_FD);
788 62ee7d94 2023-01-10 thomas imsg_init(&iev->ibuf, repo_read.session_fd);
789 62ee7d94 2023-01-10 thomas iev->handler = repo_read_dispatch_session;
790 62ee7d94 2023-01-10 thomas iev->events = EV_READ;
791 62ee7d94 2023-01-10 thomas iev->handler_arg = NULL;
792 62ee7d94 2023-01-10 thomas event_set(&iev->ev, iev->ibuf.fd, EV_READ,
793 62ee7d94 2023-01-10 thomas repo_read_dispatch_session, iev);
794 62ee7d94 2023-01-10 thomas gotd_imsg_event_add(iev);
796 62ee7d94 2023-01-10 thomas return NULL;
799 62ee7d94 2023-01-10 thomas static void
800 62ee7d94 2023-01-10 thomas repo_read_dispatch(int fd, short event, void *arg)
802 62ee7d94 2023-01-10 thomas const struct got_error *err = NULL;
803 62ee7d94 2023-01-10 thomas struct gotd_imsgev *iev = arg;
804 62ee7d94 2023-01-10 thomas struct imsgbuf *ibuf = &iev->ibuf;
805 62ee7d94 2023-01-10 thomas struct imsg imsg;
806 62ee7d94 2023-01-10 thomas ssize_t n;
807 62ee7d94 2023-01-10 thomas int shut = 0;
808 62ee7d94 2023-01-10 thomas struct repo_read_client *client = &repo_read_client;
810 62ee7d94 2023-01-10 thomas if (event & EV_READ) {
811 62ee7d94 2023-01-10 thomas if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN)
812 62ee7d94 2023-01-10 thomas fatal("imsg_read error");
813 62ee7d94 2023-01-10 thomas if (n == 0) /* Connection closed. */
814 9148c8a7 2023-01-02 thomas shut = 1;
817 62ee7d94 2023-01-10 thomas if (event & EV_WRITE) {
818 62ee7d94 2023-01-10 thomas n = msgbuf_write(&ibuf->w);
819 62ee7d94 2023-01-10 thomas if (n == -1 && errno != EAGAIN)
820 62ee7d94 2023-01-10 thomas fatal("msgbuf_write");
821 62ee7d94 2023-01-10 thomas if (n == 0) /* Connection closed. */
822 62ee7d94 2023-01-10 thomas shut = 1;
825 62ee7d94 2023-01-10 thomas while (err == NULL && check_cancelled(NULL) == NULL) {
826 62ee7d94 2023-01-10 thomas if ((n = imsg_get(ibuf, &imsg)) == -1)
827 62ee7d94 2023-01-10 thomas fatal("%s: imsg_get", __func__);
828 62ee7d94 2023-01-10 thomas if (n == 0) /* No more messages. */
831 62ee7d94 2023-01-10 thomas switch (imsg.hdr.type) {
832 62ee7d94 2023-01-10 thomas case GOTD_IMSG_CONNECT_REPO_CHILD:
833 62ee7d94 2023-01-10 thomas err = recv_connect(&imsg);
836 42f290d4 2023-03-05 thomas log_debug("unexpected imsg %d", imsg.hdr.type);
840 3efd8e31 2022-10-23 thomas imsg_free(&imsg);
843 3efd8e31 2022-10-23 thomas if (!shut && check_cancelled(NULL) == NULL) {
844 3efd8e31 2022-10-23 thomas if (err &&
845 3efd8e31 2022-10-23 thomas gotd_imsg_send_error_event(iev, PROC_REPO_READ,
846 9148c8a7 2023-01-02 thomas client->id, err) == -1) {
847 3efd8e31 2022-10-23 thomas log_warnx("could not send error to parent: %s",
848 3efd8e31 2022-10-23 thomas err->msg);
850 3efd8e31 2022-10-23 thomas gotd_imsg_event_add(iev);
852 3efd8e31 2022-10-23 thomas /* This pipe is dead. Remove its event handler */
853 3efd8e31 2022-10-23 thomas event_del(&iev->ev);
854 3efd8e31 2022-10-23 thomas event_loopexit(NULL);
859 414e37cb 2022-12-30 thomas repo_read_main(const char *title, const char *repo_path,
860 414e37cb 2022-12-30 thomas int *pack_fds, int *temp_fds)
862 3efd8e31 2022-10-23 thomas const struct got_error *err = NULL;
863 92db09ff 2023-02-17 thomas struct repo_read_client *client = &repo_read_client;
864 3efd8e31 2022-10-23 thomas struct gotd_imsgev iev;
866 92db09ff 2023-02-17 thomas client->fd = -1;
867 92db09ff 2023-02-17 thomas client->delta_cache_fd = -1;
868 92db09ff 2023-02-17 thomas client->pack_pipe = -1;
869 19aad72f 2023-03-01 thomas client->have_ids = got_object_idset_alloc();
870 19aad72f 2023-03-01 thomas if (client->have_ids == NULL) {
871 19aad72f 2023-03-01 thomas err = got_error_from_errno("got_object_idset_alloc");
872 19aad72f 2023-03-01 thomas goto done;
874 19aad72f 2023-03-01 thomas client->want_ids = got_object_idset_alloc();
875 19aad72f 2023-03-01 thomas if (client->want_ids == NULL) {
876 19aad72f 2023-03-01 thomas err = got_error_from_errno("got_object_idset_alloc");
877 19aad72f 2023-03-01 thomas goto done;
880 3efd8e31 2022-10-23 thomas repo_read.title = title;
881 3efd8e31 2022-10-23 thomas repo_read.pid = getpid();
882 3efd8e31 2022-10-23 thomas repo_read.pack_fds = pack_fds;
883 3efd8e31 2022-10-23 thomas repo_read.temp_fds = temp_fds;
884 62ee7d94 2023-01-10 thomas repo_read.session_fd = -1;
885 62ee7d94 2023-01-10 thomas repo_read.session_iev.ibuf.fd = -1;
887 414e37cb 2022-12-30 thomas err = got_repo_open(&repo_read.repo, repo_path, NULL, pack_fds);
889 3efd8e31 2022-10-23 thomas goto done;
890 3efd8e31 2022-10-23 thomas if (!got_repo_is_bare(repo_read.repo)) {
891 3efd8e31 2022-10-23 thomas err = got_error_msg(GOT_ERR_NOT_GIT_REPO,
892 3efd8e31 2022-10-23 thomas "bare git repository required");
893 3efd8e31 2022-10-23 thomas goto done;
896 3efd8e31 2022-10-23 thomas got_repo_temp_fds_set(repo_read.repo, temp_fds);
898 3efd8e31 2022-10-23 thomas signal(SIGINT, catch_sigint);
899 3efd8e31 2022-10-23 thomas signal(SIGTERM, catch_sigterm);
900 3efd8e31 2022-10-23 thomas signal(SIGPIPE, SIG_IGN);
901 3efd8e31 2022-10-23 thomas signal(SIGHUP, SIG_IGN);
903 bb3a6ce9 2022-11-17 thomas imsg_init(&iev.ibuf, GOTD_FILENO_MSG_PIPE);
904 3efd8e31 2022-10-23 thomas iev.handler = repo_read_dispatch;
905 3efd8e31 2022-10-23 thomas iev.events = EV_READ;
906 3efd8e31 2022-10-23 thomas iev.handler_arg = NULL;
907 3efd8e31 2022-10-23 thomas event_set(&iev.ev, iev.ibuf.fd, EV_READ, repo_read_dispatch, &iev);
909 85b37c72 2022-12-30 thomas if (gotd_imsg_compose_event(&iev, GOTD_IMSG_REPO_CHILD_READY,
910 85b37c72 2022-12-30 thomas PROC_REPO_READ, -1, NULL, 0) == -1) {
911 85b37c72 2022-12-30 thomas err = got_error_from_errno("imsg compose REPO_CHILD_READY");
912 3efd8e31 2022-10-23 thomas goto done;
915 3efd8e31 2022-10-23 thomas event_dispatch();
918 3efd8e31 2022-10-23 thomas log_warnx("%s: %s", title, err->msg);
919 3efd8e31 2022-10-23 thomas repo_read_shutdown();
923 3efd8e31 2022-10-23 thomas repo_read_shutdown(void)
925 92db09ff 2023-02-17 thomas struct repo_read_client *client = &repo_read_client;
927 7161c4dc 2023-03-05 thomas log_debug("shutting down");
929 19aad72f 2023-03-01 thomas if (client->have_ids)
930 19aad72f 2023-03-01 thomas got_object_idset_free(client->have_ids);
931 19aad72f 2023-03-01 thomas if (client->want_ids)
932 19aad72f 2023-03-01 thomas got_object_idset_free(client->want_ids);
933 92db09ff 2023-02-17 thomas if (client->fd != -1)
934 92db09ff 2023-02-17 thomas close(client->fd);
935 92db09ff 2023-02-17 thomas if (client->delta_cache_fd != -1)
936 92db09ff 2023-02-17 thomas close(client->delta_cache_fd);
937 92db09ff 2023-02-17 thomas if (client->pack_pipe != -1)
938 92db09ff 2023-02-17 thomas close(client->pack_pipe);
940 3efd8e31 2022-10-23 thomas if (repo_read.repo)
941 3efd8e31 2022-10-23 thomas got_repo_close(repo_read.repo);
942 3efd8e31 2022-10-23 thomas got_repo_pack_fds_close(repo_read.pack_fds);
943 3efd8e31 2022-10-23 thomas got_repo_temp_fds_close(repo_read.temp_fds);
944 62ee7d94 2023-01-10 thomas if (repo_read.session_fd != -1)
945 62ee7d94 2023-01-10 thomas close(repo_read.session_fd);