1 13b2bc37 2022-10-23 stsp /*
  2 13b2bc37 2022-10-23 stsp  * Copyright (c) 2022 Stefan Sperling <stsp@openbsd.org>
  3 13b2bc37 2022-10-23 stsp  *
  4 13b2bc37 2022-10-23 stsp  * Permission to use, copy, modify, and distribute this software for any
  5 13b2bc37 2022-10-23 stsp  * purpose with or without fee is hereby granted, provided that the above
  6 13b2bc37 2022-10-23 stsp  * copyright notice and this permission notice appear in all copies.
  7 13b2bc37 2022-10-23 stsp  *
  8 13b2bc37 2022-10-23 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9 13b2bc37 2022-10-23 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10 13b2bc37 2022-10-23 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 11 13b2bc37 2022-10-23 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12 13b2bc37 2022-10-23 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 13 13b2bc37 2022-10-23 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 14 13b2bc37 2022-10-23 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15 13b2bc37 2022-10-23 stsp  */
 16 13b2bc37 2022-10-23 stsp 
 17 13b2bc37 2022-10-23 stsp #include <sys/queue.h>
 18 13b2bc37 2022-10-23 stsp #include <sys/types.h>
 19 13b2bc37 2022-10-23 stsp 
 20 13b2bc37 2022-10-23 stsp #include <event.h>
 21 13b2bc37 2022-10-23 stsp #include <errno.h>
 22 13b2bc37 2022-10-23 stsp #include <imsg.h>
 23 13b2bc37 2022-10-23 stsp #include <signal.h>
 24 13b2bc37 2022-10-23 stsp #include <stdlib.h>
 25 13b2bc37 2022-10-23 stsp #include <limits.h>
 26 13b2bc37 2022-10-23 stsp #include <poll.h>
 27 13b2bc37 2022-10-23 stsp #include <sha1.h>
 28 13b2bc37 2022-10-23 stsp #include <siphash.h>
 29 13b2bc37 2022-10-23 stsp #include <stdio.h>
 30 13b2bc37 2022-10-23 stsp #include <string.h>
 31 13b2bc37 2022-10-23 stsp #include <unistd.h>
 32 13b2bc37 2022-10-23 stsp 
 33 13b2bc37 2022-10-23 stsp #include "got_error.h"
 34 13b2bc37 2022-10-23 stsp #include "got_cancel.h"
 35 13b2bc37 2022-10-23 stsp #include "got_object.h"
 36 13b2bc37 2022-10-23 stsp #include "got_repository.h"
 37 13b2bc37 2022-10-23 stsp #include "got_reference.h"
 38 13b2bc37 2022-10-23 stsp #include "got_repository_admin.h"
 39 13b2bc37 2022-10-23 stsp 
 40 13b2bc37 2022-10-23 stsp #include "got_lib_delta.h"
 41 13b2bc37 2022-10-23 stsp #include "got_lib_object.h"
 42 13b2bc37 2022-10-23 stsp #include "got_lib_object_idset.h"
 43 13b2bc37 2022-10-23 stsp #include "got_lib_sha1.h"
 44 13b2bc37 2022-10-23 stsp #include "got_lib_pack.h"
 45 13b2bc37 2022-10-23 stsp #include "got_lib_ratelimit.h"
 46 13b2bc37 2022-10-23 stsp #include "got_lib_pack_create.h"
 47 13b2bc37 2022-10-23 stsp #include "got_lib_poll.h"
 48 13b2bc37 2022-10-23 stsp 
 49 13b2bc37 2022-10-23 stsp #include "log.h"
 50 13b2bc37 2022-10-23 stsp #include "gotd.h"
 51 13b2bc37 2022-10-23 stsp #include "repo_read.h"
 52 13b2bc37 2022-10-23 stsp 
 53 13b2bc37 2022-10-23 stsp #ifndef nitems
 54 13b2bc37 2022-10-23 stsp #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
 55 13b2bc37 2022-10-23 stsp #endif
 56 13b2bc37 2022-10-23 stsp 
 57 13b2bc37 2022-10-23 stsp static struct repo_read {
 58 13b2bc37 2022-10-23 stsp 	pid_t pid;
 59 13b2bc37 2022-10-23 stsp 	const char *title;
 60 13b2bc37 2022-10-23 stsp 	struct got_repository *repo;
 61 13b2bc37 2022-10-23 stsp 	int *pack_fds;
 62 13b2bc37 2022-10-23 stsp 	int *temp_fds;
 63 13b2bc37 2022-10-23 stsp } repo_read;
 64 13b2bc37 2022-10-23 stsp 
 65 13b2bc37 2022-10-23 stsp struct repo_read_client {
 66 13b2bc37 2022-10-23 stsp 	STAILQ_ENTRY(repo_read_client)	 entry;
 67 13b2bc37 2022-10-23 stsp 	uint32_t			 id;
 68 13b2bc37 2022-10-23 stsp 	int				 fd;
 69 13b2bc37 2022-10-23 stsp 	int				 delta_cache_fd;
 70 13b2bc37 2022-10-23 stsp 	int				 report_progress;
 71 13b2bc37 2022-10-23 stsp 	int				 pack_pipe[2];
 72 13b2bc37 2022-10-23 stsp 	struct gotd_object_id_array	 want_ids;
 73 13b2bc37 2022-10-23 stsp 	struct gotd_object_id_array	 have_ids;
 74 13b2bc37 2022-10-23 stsp };
 75 13b2bc37 2022-10-23 stsp STAILQ_HEAD(repo_read_clients, repo_read_client);
 76 13b2bc37 2022-10-23 stsp 
 77 13b2bc37 2022-10-23 stsp static struct repo_read_clients repo_read_clients[GOTD_CLIENT_TABLE_SIZE];
 78 13b2bc37 2022-10-23 stsp static SIPHASH_KEY clients_hash_key;
 79 13b2bc37 2022-10-23 stsp 
 80 13b2bc37 2022-10-23 stsp static uint64_t
 81 13b2bc37 2022-10-23 stsp client_hash(uint32_t client_id)
 82 13b2bc37 2022-10-23 stsp {
 83 13b2bc37 2022-10-23 stsp 	return SipHash24(&clients_hash_key, &client_id, sizeof(client_id));
 84 13b2bc37 2022-10-23 stsp }
 85 13b2bc37 2022-10-23 stsp 
 86 13b2bc37 2022-10-23 stsp static void
 87 13b2bc37 2022-10-23 stsp add_client(struct repo_read_client *client, uint32_t client_id, int fd)
 88 13b2bc37 2022-10-23 stsp {
 89 13b2bc37 2022-10-23 stsp 	uint64_t slot;
 90 13b2bc37 2022-10-23 stsp 
 91 13b2bc37 2022-10-23 stsp 	client->id = client_id;
 92 13b2bc37 2022-10-23 stsp 	client->fd = fd;
 93 13b2bc37 2022-10-23 stsp 	client->delta_cache_fd = -1;
 94 13b2bc37 2022-10-23 stsp 	client->pack_pipe[0] = -1;
 95 13b2bc37 2022-10-23 stsp 	client->pack_pipe[1] = -1;
 96 13b2bc37 2022-10-23 stsp 	slot = client_hash(client->id) % nitems(repo_read_clients);
 97 13b2bc37 2022-10-23 stsp 	STAILQ_INSERT_HEAD(&repo_read_clients[slot], client, entry);
 98 13b2bc37 2022-10-23 stsp }
 99 13b2bc37 2022-10-23 stsp 
100 13b2bc37 2022-10-23 stsp static struct repo_read_client *
101 13b2bc37 2022-10-23 stsp find_client(uint32_t client_id)
102 13b2bc37 2022-10-23 stsp {
103 13b2bc37 2022-10-23 stsp 	uint64_t slot;
104 13b2bc37 2022-10-23 stsp 	struct repo_read_client *c;
105 13b2bc37 2022-10-23 stsp 
106 13b2bc37 2022-10-23 stsp 	slot = client_hash(client_id) % nitems(repo_read_clients);
107 13b2bc37 2022-10-23 stsp 	STAILQ_FOREACH(c, &repo_read_clients[slot], entry) {
108 13b2bc37 2022-10-23 stsp 		if (c->id == client_id)
109 13b2bc37 2022-10-23 stsp 			return c;
110 13b2bc37 2022-10-23 stsp 	}
111 13b2bc37 2022-10-23 stsp 
112 13b2bc37 2022-10-23 stsp 	return NULL;
113 13b2bc37 2022-10-23 stsp }
114 13b2bc37 2022-10-23 stsp 
115 13b2bc37 2022-10-23 stsp static volatile sig_atomic_t sigint_received;
116 13b2bc37 2022-10-23 stsp static volatile sig_atomic_t sigterm_received;
117 13b2bc37 2022-10-23 stsp 
118 13b2bc37 2022-10-23 stsp static void
119 13b2bc37 2022-10-23 stsp catch_sigint(int signo)
120 13b2bc37 2022-10-23 stsp {
121 13b2bc37 2022-10-23 stsp 	sigint_received = 1;
122 13b2bc37 2022-10-23 stsp }
123 13b2bc37 2022-10-23 stsp 
124 13b2bc37 2022-10-23 stsp static void
125 13b2bc37 2022-10-23 stsp catch_sigterm(int signo)
126 13b2bc37 2022-10-23 stsp {
127 13b2bc37 2022-10-23 stsp 	sigterm_received = 1;
128 13b2bc37 2022-10-23 stsp }
129 13b2bc37 2022-10-23 stsp 
130 13b2bc37 2022-10-23 stsp static const struct got_error *
131 13b2bc37 2022-10-23 stsp check_cancelled(void *arg)
132 13b2bc37 2022-10-23 stsp {
133 13b2bc37 2022-10-23 stsp 	if (sigint_received || sigterm_received)
134 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_CANCELLED);
135 13b2bc37 2022-10-23 stsp 
136 13b2bc37 2022-10-23 stsp 	return NULL;
137 13b2bc37 2022-10-23 stsp }
138 13b2bc37 2022-10-23 stsp 
139 13b2bc37 2022-10-23 stsp static const struct got_error *
140 13b2bc37 2022-10-23 stsp send_symref(struct got_reference *symref, struct imsgbuf *ibuf)
141 13b2bc37 2022-10-23 stsp {
142 13b2bc37 2022-10-23 stsp 	const struct got_error *err = NULL;
143 13b2bc37 2022-10-23 stsp 	struct gotd_imsg_symref isymref;
144 13b2bc37 2022-10-23 stsp 	const char *refname = got_ref_get_name(symref);
145 13b2bc37 2022-10-23 stsp 	const char *target = got_ref_get_symref_target(symref);
146 13b2bc37 2022-10-23 stsp 	size_t len;
147 13b2bc37 2022-10-23 stsp 	struct ibuf *wbuf;
148 13b2bc37 2022-10-23 stsp 	struct got_object_id *target_id;
149 13b2bc37 2022-10-23 stsp 
150 13b2bc37 2022-10-23 stsp 	err = got_ref_resolve(&target_id, repo_read.repo, symref);
151 13b2bc37 2022-10-23 stsp 	if (err)
152 13b2bc37 2022-10-23 stsp 		return err;
153 13b2bc37 2022-10-23 stsp 
154 13b2bc37 2022-10-23 stsp 	memset(&isymref, 0, sizeof(isymref));
155 13b2bc37 2022-10-23 stsp 	isymref.name_len = strlen(refname);
156 13b2bc37 2022-10-23 stsp 	isymref.target_len = strlen(target);
157 13b2bc37 2022-10-23 stsp 	memcpy(isymref.target_id, target_id->sha1, sizeof(isymref.target_id));
158 13b2bc37 2022-10-23 stsp 
159 13b2bc37 2022-10-23 stsp 	len = sizeof(isymref) + isymref.name_len + isymref.target_len;
160 13b2bc37 2022-10-23 stsp 	if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
161 13b2bc37 2022-10-23 stsp 		err = got_error(GOT_ERR_NO_SPACE);
162 13b2bc37 2022-10-23 stsp 		goto done;
163 13b2bc37 2022-10-23 stsp 	}
164 13b2bc37 2022-10-23 stsp 
165 13b2bc37 2022-10-23 stsp 	wbuf = imsg_create(ibuf, GOTD_IMSG_SYMREF, 0, 0, len);
166 13b2bc37 2022-10-23 stsp 	if (wbuf == NULL) {
167 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("imsg_create SYMREF");
168 13b2bc37 2022-10-23 stsp 		goto done;
169 13b2bc37 2022-10-23 stsp 	}
170 13b2bc37 2022-10-23 stsp 
171 13b2bc37 2022-10-23 stsp 	if (imsg_add(wbuf, &isymref, sizeof(isymref)) == -1) {
172 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("imsg_add SYMREF");
173 13b2bc37 2022-10-23 stsp 		goto done;
174 13b2bc37 2022-10-23 stsp 	}
175 13b2bc37 2022-10-23 stsp 	if (imsg_add(wbuf, refname, isymref.name_len) == -1) {
176 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("imsg_add SYMREF");
177 13b2bc37 2022-10-23 stsp 		goto done;
178 13b2bc37 2022-10-23 stsp 	}
179 13b2bc37 2022-10-23 stsp 	if (imsg_add(wbuf, target, isymref.target_len) == -1) {
180 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("imsg_add SYMREF");
181 13b2bc37 2022-10-23 stsp 		goto done;
182 13b2bc37 2022-10-23 stsp 	}
183 13b2bc37 2022-10-23 stsp 
184 13b2bc37 2022-10-23 stsp 	wbuf->fd = -1;
185 13b2bc37 2022-10-23 stsp 	imsg_close(ibuf, wbuf);
186 13b2bc37 2022-10-23 stsp done:
187 13b2bc37 2022-10-23 stsp 	free(target_id);
188 13b2bc37 2022-10-23 stsp 	return err;
189 13b2bc37 2022-10-23 stsp }
190 13b2bc37 2022-10-23 stsp 
191 13b2bc37 2022-10-23 stsp static const struct got_error *
192 13b2bc37 2022-10-23 stsp send_peeled_tag_ref(struct got_reference *ref, struct got_object *obj,
193 13b2bc37 2022-10-23 stsp     struct imsgbuf *ibuf)
194 13b2bc37 2022-10-23 stsp {
195 13b2bc37 2022-10-23 stsp 	const struct got_error *err = NULL;
196 13b2bc37 2022-10-23 stsp 	struct got_tag_object *tag;
197 13b2bc37 2022-10-23 stsp 	size_t namelen, len;
198 13b2bc37 2022-10-23 stsp 	char *peeled_refname = NULL;
199 13b2bc37 2022-10-23 stsp 	struct got_object_id *id;
200 13b2bc37 2022-10-23 stsp 	struct ibuf *wbuf;
201 13b2bc37 2022-10-23 stsp 
202 13b2bc37 2022-10-23 stsp 	err = got_object_tag_open(&tag, repo_read.repo, obj);
203 13b2bc37 2022-10-23 stsp 	if (err)
204 13b2bc37 2022-10-23 stsp 		return err;
205 13b2bc37 2022-10-23 stsp 
206 13b2bc37 2022-10-23 stsp 	if (asprintf(&peeled_refname, "%s^{}", got_ref_get_name(ref)) == -1) {
207 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("asprintf");
208 13b2bc37 2022-10-23 stsp 		goto done;
209 13b2bc37 2022-10-23 stsp 	}
210 13b2bc37 2022-10-23 stsp 
211 13b2bc37 2022-10-23 stsp 	id = got_object_tag_get_object_id(tag);
212 13b2bc37 2022-10-23 stsp 	namelen = strlen(peeled_refname);
213 13b2bc37 2022-10-23 stsp 
214 13b2bc37 2022-10-23 stsp 	len = sizeof(struct gotd_imsg_ref) + namelen;
215 13b2bc37 2022-10-23 stsp 	if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
216 13b2bc37 2022-10-23 stsp 		err = got_error(GOT_ERR_NO_SPACE);
217 13b2bc37 2022-10-23 stsp 		goto done;
218 13b2bc37 2022-10-23 stsp 	}
219 13b2bc37 2022-10-23 stsp 
220 13b2bc37 2022-10-23 stsp 	wbuf = imsg_create(ibuf, GOTD_IMSG_REF, PROC_REPO_READ,
221 13b2bc37 2022-10-23 stsp 	    repo_read.pid, len);
222 13b2bc37 2022-10-23 stsp 	if (wbuf == NULL) {
223 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("imsg_create MREF");
224 13b2bc37 2022-10-23 stsp 		goto done;
225 13b2bc37 2022-10-23 stsp 	}
226 13b2bc37 2022-10-23 stsp 
227 13b2bc37 2022-10-23 stsp 	/* Keep in sync with struct gotd_imsg_ref definition. */
228 13b2bc37 2022-10-23 stsp 	if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1) {
229 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("imsg_add REF");
230 13b2bc37 2022-10-23 stsp 		goto done;
231 13b2bc37 2022-10-23 stsp 	}
232 13b2bc37 2022-10-23 stsp 	if (imsg_add(wbuf, &namelen, sizeof(namelen)) == -1) {
233 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("imsg_add REF");
234 13b2bc37 2022-10-23 stsp 		goto done;
235 13b2bc37 2022-10-23 stsp 	}
236 13b2bc37 2022-10-23 stsp 	if (imsg_add(wbuf, peeled_refname, namelen) == -1) {
237 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("imsg_add REF");
238 13b2bc37 2022-10-23 stsp 		goto done;
239 13b2bc37 2022-10-23 stsp 	}
240 13b2bc37 2022-10-23 stsp 
241 13b2bc37 2022-10-23 stsp 	wbuf->fd = -1;
242 13b2bc37 2022-10-23 stsp 	imsg_close(ibuf, wbuf);
243 13b2bc37 2022-10-23 stsp done:
244 13b2bc37 2022-10-23 stsp 	got_object_tag_close(tag);
245 13b2bc37 2022-10-23 stsp 	return err;
246 13b2bc37 2022-10-23 stsp }
247 13b2bc37 2022-10-23 stsp 
248 13b2bc37 2022-10-23 stsp static const struct got_error *
249 13b2bc37 2022-10-23 stsp send_ref(struct got_reference *ref, struct imsgbuf *ibuf)
250 13b2bc37 2022-10-23 stsp {
251 13b2bc37 2022-10-23 stsp 	const struct got_error *err;
252 13b2bc37 2022-10-23 stsp 	const char *refname = got_ref_get_name(ref);
253 13b2bc37 2022-10-23 stsp 	size_t namelen;
254 13b2bc37 2022-10-23 stsp 	struct got_object_id *id = NULL;
255 13b2bc37 2022-10-23 stsp 	struct got_object *obj = NULL;
256 13b2bc37 2022-10-23 stsp 	size_t len;
257 13b2bc37 2022-10-23 stsp 	struct ibuf *wbuf;
258 13b2bc37 2022-10-23 stsp 
259 13b2bc37 2022-10-23 stsp 	namelen = strlen(refname);
260 13b2bc37 2022-10-23 stsp 
261 13b2bc37 2022-10-23 stsp 	len = sizeof(struct gotd_imsg_ref) + namelen;
262 13b2bc37 2022-10-23 stsp 	if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
263 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_NO_SPACE);
264 13b2bc37 2022-10-23 stsp 
265 13b2bc37 2022-10-23 stsp 	err = got_ref_resolve(&id, repo_read.repo, ref);
266 13b2bc37 2022-10-23 stsp 	if (err)
267 13b2bc37 2022-10-23 stsp 		return err;
268 13b2bc37 2022-10-23 stsp 
269 13b2bc37 2022-10-23 stsp 	wbuf = imsg_create(ibuf, GOTD_IMSG_REF, PROC_REPO_READ,
270 13b2bc37 2022-10-23 stsp 	    repo_read.pid, len);
271 13b2bc37 2022-10-23 stsp 	if (wbuf == NULL) {
272 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("imsg_create REF");
273 13b2bc37 2022-10-23 stsp 		goto done;
274 13b2bc37 2022-10-23 stsp 	}
275 13b2bc37 2022-10-23 stsp 
276 13b2bc37 2022-10-23 stsp 	/* Keep in sync with struct gotd_imsg_ref definition. */
277 13b2bc37 2022-10-23 stsp 	if (imsg_add(wbuf, id->sha1, SHA1_DIGEST_LENGTH) == -1)
278 13b2bc37 2022-10-23 stsp 		return got_error_from_errno("imsg_add REF");
279 13b2bc37 2022-10-23 stsp 	if (imsg_add(wbuf, &namelen, sizeof(namelen)) == -1)
280 13b2bc37 2022-10-23 stsp 		return got_error_from_errno("imsg_add REF");
281 13b2bc37 2022-10-23 stsp 	if (imsg_add(wbuf, refname, namelen) == -1)
282 13b2bc37 2022-10-23 stsp 		return got_error_from_errno("imsg_add REF");
283 13b2bc37 2022-10-23 stsp 
284 13b2bc37 2022-10-23 stsp 	wbuf->fd = -1;
285 13b2bc37 2022-10-23 stsp 	imsg_close(ibuf, wbuf);
286 13b2bc37 2022-10-23 stsp 
287 13b2bc37 2022-10-23 stsp 	err = got_object_open(&obj, repo_read.repo, id);
288 13b2bc37 2022-10-23 stsp 	if (err)
289 13b2bc37 2022-10-23 stsp 		goto done;
290 13b2bc37 2022-10-23 stsp 	if (obj->type == GOT_OBJ_TYPE_TAG)
291 13b2bc37 2022-10-23 stsp 		err = send_peeled_tag_ref(ref, obj, ibuf);
292 13b2bc37 2022-10-23 stsp done:
293 13b2bc37 2022-10-23 stsp 	if (obj)
294 13b2bc37 2022-10-23 stsp 		got_object_close(obj);
295 13b2bc37 2022-10-23 stsp 	free(id);
296 13b2bc37 2022-10-23 stsp 	return err;
297 13b2bc37 2022-10-23 stsp }
298 13b2bc37 2022-10-23 stsp 
299 13b2bc37 2022-10-23 stsp static const struct got_error *
300 13b2bc37 2022-10-23 stsp list_refs(struct repo_read_client **client, struct imsg *imsg)
301 13b2bc37 2022-10-23 stsp {
302 13b2bc37 2022-10-23 stsp 	const struct got_error *err;
303 13b2bc37 2022-10-23 stsp 	struct got_reflist_head refs;
304 13b2bc37 2022-10-23 stsp 	struct got_reflist_entry *re;
305 13b2bc37 2022-10-23 stsp 	struct gotd_imsg_list_refs_internal ireq;
306 13b2bc37 2022-10-23 stsp 	size_t datalen;
307 13b2bc37 2022-10-23 stsp 	struct gotd_imsg_reflist irefs;
308 13b2bc37 2022-10-23 stsp 	struct imsgbuf ibuf;
309 13b2bc37 2022-10-23 stsp 	int client_fd = imsg->fd;
310 13b2bc37 2022-10-23 stsp 
311 13b2bc37 2022-10-23 stsp 	TAILQ_INIT(&refs);
312 13b2bc37 2022-10-23 stsp 
313 13b2bc37 2022-10-23 stsp 	if (client_fd == -1)
314 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_PRIVSEP_NO_FD);
315 13b2bc37 2022-10-23 stsp 
316 13b2bc37 2022-10-23 stsp 	datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
317 13b2bc37 2022-10-23 stsp 	if (datalen != sizeof(ireq))
318 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_PRIVSEP_LEN);
319 13b2bc37 2022-10-23 stsp 	memcpy(&ireq, imsg->data, sizeof(ireq));
320 13b2bc37 2022-10-23 stsp 
321 13b2bc37 2022-10-23 stsp 	*client = find_client(ireq.client_id);
322 13b2bc37 2022-10-23 stsp 	if (*client)
323 13b2bc37 2022-10-23 stsp 		return got_error_msg(GOT_ERR_CLIENT_ID, "duplicate client ID");
324 13b2bc37 2022-10-23 stsp 
325 13b2bc37 2022-10-23 stsp 	*client = calloc(1, sizeof(**client));
326 13b2bc37 2022-10-23 stsp 	if (*client == NULL)
327 13b2bc37 2022-10-23 stsp 		return got_error_from_errno("calloc");
328 13b2bc37 2022-10-23 stsp 	add_client(*client, ireq.client_id, client_fd);
329 13b2bc37 2022-10-23 stsp 
330 13b2bc37 2022-10-23 stsp 	imsg_init(&ibuf, client_fd);
331 13b2bc37 2022-10-23 stsp 
332 13b2bc37 2022-10-23 stsp 	err = got_ref_list(&refs, repo_read.repo, "",
333 13b2bc37 2022-10-23 stsp 	    got_ref_cmp_by_name, NULL);
334 13b2bc37 2022-10-23 stsp 	if (err)
335 13b2bc37 2022-10-23 stsp 		return err;
336 13b2bc37 2022-10-23 stsp 
337 13b2bc37 2022-10-23 stsp 	memset(&irefs, 0, sizeof(irefs));
338 13b2bc37 2022-10-23 stsp 	TAILQ_FOREACH(re, &refs, entry) {
339 13b2bc37 2022-10-23 stsp 		struct got_object_id *id;
340 13b2bc37 2022-10-23 stsp 		int obj_type;
341 13b2bc37 2022-10-23 stsp 
342 13b2bc37 2022-10-23 stsp 		if (got_ref_is_symbolic(re->ref)) {
343 13b2bc37 2022-10-23 stsp 			const char *refname = got_ref_get_name(re->ref);
344 13b2bc37 2022-10-23 stsp 			if (strcmp(refname, GOT_REF_HEAD) == 0)
345 13b2bc37 2022-10-23 stsp 				irefs.nrefs++;
346 13b2bc37 2022-10-23 stsp 			continue;
347 13b2bc37 2022-10-23 stsp 		}
348 13b2bc37 2022-10-23 stsp 
349 13b2bc37 2022-10-23 stsp 		irefs.nrefs++;
350 13b2bc37 2022-10-23 stsp 
351 13b2bc37 2022-10-23 stsp 		/* Account for a peeled tag refs. */
352 13b2bc37 2022-10-23 stsp 		err = got_ref_resolve(&id, repo_read.repo, re->ref);
353 13b2bc37 2022-10-23 stsp 		if (err)
354 13b2bc37 2022-10-23 stsp 			goto done;
355 13b2bc37 2022-10-23 stsp 		err = got_object_get_type(&obj_type, repo_read.repo, id);	
356 13b2bc37 2022-10-23 stsp 		free(id);
357 13b2bc37 2022-10-23 stsp 		if (err)
358 13b2bc37 2022-10-23 stsp 			goto done;
359 13b2bc37 2022-10-23 stsp 		if (obj_type == GOT_OBJ_TYPE_TAG)
360 13b2bc37 2022-10-23 stsp 			irefs.nrefs++;
361 13b2bc37 2022-10-23 stsp 	}
362 13b2bc37 2022-10-23 stsp 
363 13b2bc37 2022-10-23 stsp 	if (imsg_compose(&ibuf, GOTD_IMSG_REFLIST, PROC_REPO_READ,
364 13b2bc37 2022-10-23 stsp 	    repo_read.pid, -1, &irefs, sizeof(irefs)) == -1) {
365 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("imsg_compose REFLIST");
366 13b2bc37 2022-10-23 stsp 		goto done;
367 13b2bc37 2022-10-23 stsp 	}
368 13b2bc37 2022-10-23 stsp 
369 13b2bc37 2022-10-23 stsp 	/*
370 13b2bc37 2022-10-23 stsp 	 * Send the HEAD symref first. In Git-protocol versions < 2
371 13b2bc37 2022-10-23 stsp 	 * the HEAD symref must be announced on the initial line of
372 13b2bc37 2022-10-23 stsp 	 * the server's ref advertisement.
373 13b2bc37 2022-10-23 stsp 	 * For now, we do not advertise symrefs other than HEAD.
374 13b2bc37 2022-10-23 stsp 	 */
375 13b2bc37 2022-10-23 stsp 	TAILQ_FOREACH(re, &refs, entry) {
376 13b2bc37 2022-10-23 stsp 		if (!got_ref_is_symbolic(re->ref) ||
377 13b2bc37 2022-10-23 stsp 		    strcmp(got_ref_get_name(re->ref), GOT_REF_HEAD) != 0)
378 13b2bc37 2022-10-23 stsp 			continue;
379 13b2bc37 2022-10-23 stsp 		err = send_symref(re->ref, &ibuf);
380 13b2bc37 2022-10-23 stsp 		if (err)
381 13b2bc37 2022-10-23 stsp 			goto done;
382 13b2bc37 2022-10-23 stsp 		break;
383 13b2bc37 2022-10-23 stsp 	}
384 13b2bc37 2022-10-23 stsp 	TAILQ_FOREACH(re, &refs, entry) {
385 13b2bc37 2022-10-23 stsp 		if (got_ref_is_symbolic(re->ref))
386 13b2bc37 2022-10-23 stsp 			continue;
387 13b2bc37 2022-10-23 stsp 		err = send_ref(re->ref, &ibuf);
388 13b2bc37 2022-10-23 stsp 		if (err)
389 13b2bc37 2022-10-23 stsp 			goto done;
390 13b2bc37 2022-10-23 stsp 	}
391 13b2bc37 2022-10-23 stsp 
392 13b2bc37 2022-10-23 stsp 	err = gotd_imsg_flush(&ibuf);
393 13b2bc37 2022-10-23 stsp done:
394 13b2bc37 2022-10-23 stsp 	got_ref_list_free(&refs);
395 13b2bc37 2022-10-23 stsp 	imsg_clear(&ibuf);
396 13b2bc37 2022-10-23 stsp 	return err;
397 13b2bc37 2022-10-23 stsp }
398 13b2bc37 2022-10-23 stsp 
399 13b2bc37 2022-10-23 stsp static const struct got_error *
400 13b2bc37 2022-10-23 stsp record_object_id(struct gotd_object_id_array *array, struct got_object_id *id)
401 13b2bc37 2022-10-23 stsp {
402 13b2bc37 2022-10-23 stsp 	const size_t alloc_chunksz = 256;
403 13b2bc37 2022-10-23 stsp 
404 13b2bc37 2022-10-23 stsp 	if (array->ids == NULL) {
405 13b2bc37 2022-10-23 stsp 		array->ids = reallocarray(NULL, alloc_chunksz,
406 13b2bc37 2022-10-23 stsp 		    sizeof(*array->ids));
407 13b2bc37 2022-10-23 stsp 		if (array->ids == NULL)
408 13b2bc37 2022-10-23 stsp 			return got_error_from_errno("reallocarray");
409 13b2bc37 2022-10-23 stsp 		array->nalloc = alloc_chunksz;
410 13b2bc37 2022-10-23 stsp 		array->nids = 0;
411 13b2bc37 2022-10-23 stsp 	} else if (array->nalloc <= array->nids) {
412 13b2bc37 2022-10-23 stsp 		struct got_object_id **new;
413 13b2bc37 2022-10-23 stsp 		new = recallocarray(array->ids, array->nalloc,
414 13b2bc37 2022-10-23 stsp 		    array->nalloc + alloc_chunksz, sizeof(*new));
415 13b2bc37 2022-10-23 stsp 		if (new == NULL)
416 13b2bc37 2022-10-23 stsp 			return got_error_from_errno("recallocarray");
417 13b2bc37 2022-10-23 stsp 		array->ids = new;
418 13b2bc37 2022-10-23 stsp 		array->nalloc += alloc_chunksz;
419 13b2bc37 2022-10-23 stsp 	}
420 13b2bc37 2022-10-23 stsp 
421 13b2bc37 2022-10-23 stsp 	array->ids[array->nids] = got_object_id_dup(id);
422 13b2bc37 2022-10-23 stsp 	if (array->ids[array->nids] == NULL)
423 13b2bc37 2022-10-23 stsp 		return got_error_from_errno("got_object_id_dup");
424 13b2bc37 2022-10-23 stsp 	array->nids++;
425 13b2bc37 2022-10-23 stsp 	return NULL;
426 13b2bc37 2022-10-23 stsp }
427 13b2bc37 2022-10-23 stsp 
428 13b2bc37 2022-10-23 stsp static void
429 13b2bc37 2022-10-23 stsp free_object_ids(struct gotd_object_id_array *array)
430 13b2bc37 2022-10-23 stsp {
431 13b2bc37 2022-10-23 stsp 	size_t i;
432 13b2bc37 2022-10-23 stsp 
433 13b2bc37 2022-10-23 stsp 	for (i = 0; i < array->nids; i++)
434 13b2bc37 2022-10-23 stsp 		free(array->ids[i]);
435 13b2bc37 2022-10-23 stsp 	free(array->ids);
436 13b2bc37 2022-10-23 stsp 
437 13b2bc37 2022-10-23 stsp 	array->ids = NULL;
438 13b2bc37 2022-10-23 stsp 	array->nalloc = 0;
439 13b2bc37 2022-10-23 stsp 	array->nids = 0;
440 13b2bc37 2022-10-23 stsp }
441 13b2bc37 2022-10-23 stsp 
442 13b2bc37 2022-10-23 stsp static const struct got_error *
443 13b2bc37 2022-10-23 stsp recv_want(struct repo_read_client **client, struct imsg *imsg)
444 13b2bc37 2022-10-23 stsp {
445 13b2bc37 2022-10-23 stsp 	const struct got_error *err;
446 13b2bc37 2022-10-23 stsp 	struct gotd_imsg_want iwant;
447 13b2bc37 2022-10-23 stsp 	size_t datalen;
448 13b2bc37 2022-10-23 stsp 	char hex[SHA1_DIGEST_STRING_LENGTH];
449 13b2bc37 2022-10-23 stsp 	struct got_object_id id;
450 13b2bc37 2022-10-23 stsp 	int obj_type;
451 13b2bc37 2022-10-23 stsp 	struct imsgbuf ibuf;
452 13b2bc37 2022-10-23 stsp 
453 13b2bc37 2022-10-23 stsp 	datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
454 13b2bc37 2022-10-23 stsp 	if (datalen != sizeof(iwant))
455 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_PRIVSEP_LEN);
456 13b2bc37 2022-10-23 stsp 	memcpy(&iwant, imsg->data, sizeof(iwant));
457 13b2bc37 2022-10-23 stsp 
458 13b2bc37 2022-10-23 stsp 	memset(&id, 0, sizeof(id));
459 13b2bc37 2022-10-23 stsp 	memcpy(id.sha1, iwant.object_id, SHA1_DIGEST_LENGTH);
460 13b2bc37 2022-10-23 stsp 
461 13b2bc37 2022-10-23 stsp 	if (log_getverbose() > 0 &&
462 13b2bc37 2022-10-23 stsp 	    got_sha1_digest_to_str(id.sha1, hex, sizeof(hex)))
463 13b2bc37 2022-10-23 stsp 		log_debug("client wants %s", hex);
464 13b2bc37 2022-10-23 stsp 
465 13b2bc37 2022-10-23 stsp 	*client = find_client(iwant.client_id);
466 13b2bc37 2022-10-23 stsp 	if (*client == NULL)
467 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_CLIENT_ID);
468 13b2bc37 2022-10-23 stsp 
469 13b2bc37 2022-10-23 stsp 	imsg_init(&ibuf, (*client)->fd);
470 13b2bc37 2022-10-23 stsp 
471 13b2bc37 2022-10-23 stsp 	err = got_object_get_type(&obj_type, repo_read.repo, &id);
472 13b2bc37 2022-10-23 stsp 	if (err)
473 13b2bc37 2022-10-23 stsp 		return err;
474 13b2bc37 2022-10-23 stsp 
475 13b2bc37 2022-10-23 stsp 	if (obj_type != GOT_OBJ_TYPE_COMMIT &&
476 13b2bc37 2022-10-23 stsp 	    obj_type != GOT_OBJ_TYPE_TAG)
477 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_OBJ_TYPE);
478 13b2bc37 2022-10-23 stsp 
479 13b2bc37 2022-10-23 stsp 	err = record_object_id(&(*client)->want_ids, &id);
480 13b2bc37 2022-10-23 stsp 	if (err)
481 13b2bc37 2022-10-23 stsp 		return err;
482 13b2bc37 2022-10-23 stsp 
483 13b2bc37 2022-10-23 stsp 	gotd_imsg_send_ack(&id, &ibuf, PROC_REPO_READ, repo_read.pid);
484 13b2bc37 2022-10-23 stsp 	imsg_clear(&ibuf);
485 13b2bc37 2022-10-23 stsp 	return err;
486 13b2bc37 2022-10-23 stsp }
487 13b2bc37 2022-10-23 stsp 
488 13b2bc37 2022-10-23 stsp static const struct got_error *
489 13b2bc37 2022-10-23 stsp recv_have(struct repo_read_client **client, struct imsg *imsg)
490 13b2bc37 2022-10-23 stsp {
491 13b2bc37 2022-10-23 stsp 	const struct got_error *err;
492 13b2bc37 2022-10-23 stsp 	struct gotd_imsg_have ihave;
493 13b2bc37 2022-10-23 stsp 	size_t datalen;
494 13b2bc37 2022-10-23 stsp 	char hex[SHA1_DIGEST_STRING_LENGTH];
495 13b2bc37 2022-10-23 stsp 	struct got_object_id id;
496 13b2bc37 2022-10-23 stsp 	int obj_type;
497 13b2bc37 2022-10-23 stsp 	struct imsgbuf ibuf;
498 13b2bc37 2022-10-23 stsp 
499 13b2bc37 2022-10-23 stsp 	datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
500 13b2bc37 2022-10-23 stsp 	if (datalen != sizeof(ihave))
501 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_PRIVSEP_LEN);
502 13b2bc37 2022-10-23 stsp 	memcpy(&ihave, imsg->data, sizeof(ihave));
503 13b2bc37 2022-10-23 stsp 
504 13b2bc37 2022-10-23 stsp 	memset(&id, 0, sizeof(id));
505 13b2bc37 2022-10-23 stsp 	memcpy(id.sha1, ihave.object_id, SHA1_DIGEST_LENGTH);
506 13b2bc37 2022-10-23 stsp 
507 13b2bc37 2022-10-23 stsp 	if (log_getverbose() > 0 &&
508 13b2bc37 2022-10-23 stsp 	    got_sha1_digest_to_str(id.sha1, hex, sizeof(hex)))
509 13b2bc37 2022-10-23 stsp 		log_debug("client has %s", hex);
510 13b2bc37 2022-10-23 stsp 
511 13b2bc37 2022-10-23 stsp 	*client = find_client(ihave.client_id);
512 13b2bc37 2022-10-23 stsp 	if (*client == NULL)
513 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_CLIENT_ID);
514 13b2bc37 2022-10-23 stsp 
515 13b2bc37 2022-10-23 stsp 	imsg_init(&ibuf, (*client)->fd);
516 13b2bc37 2022-10-23 stsp 
517 13b2bc37 2022-10-23 stsp 	err = got_object_get_type(&obj_type, repo_read.repo, &id);
518 13b2bc37 2022-10-23 stsp 	if (err) {
519 13b2bc37 2022-10-23 stsp 		if (err->code == GOT_ERR_NO_OBJ) {
520 13b2bc37 2022-10-23 stsp 			gotd_imsg_send_nak(&id, &ibuf,
521 13b2bc37 2022-10-23 stsp 			    PROC_REPO_READ, repo_read.pid);
522 13b2bc37 2022-10-23 stsp 			err = NULL;
523 13b2bc37 2022-10-23 stsp 		}
524 13b2bc37 2022-10-23 stsp 		goto done;
525 13b2bc37 2022-10-23 stsp 	}
526 13b2bc37 2022-10-23 stsp 
527 13b2bc37 2022-10-23 stsp 	if (obj_type != GOT_OBJ_TYPE_COMMIT &&
528 13b2bc37 2022-10-23 stsp 	    obj_type != GOT_OBJ_TYPE_TAG) {
529 13b2bc37 2022-10-23 stsp 		gotd_imsg_send_nak(&id, &ibuf, PROC_REPO_READ, repo_read.pid);
530 13b2bc37 2022-10-23 stsp 		err = got_error(GOT_ERR_OBJ_TYPE);
531 13b2bc37 2022-10-23 stsp 		goto done;
532 13b2bc37 2022-10-23 stsp 	}
533 13b2bc37 2022-10-23 stsp 
534 13b2bc37 2022-10-23 stsp 	err = record_object_id(&(*client)->have_ids, &id);
535 13b2bc37 2022-10-23 stsp 	if (err)
536 13b2bc37 2022-10-23 stsp 		return err;
537 13b2bc37 2022-10-23 stsp 
538 13b2bc37 2022-10-23 stsp 	gotd_imsg_send_ack(&id, &ibuf, PROC_REPO_READ, repo_read.pid);
539 13b2bc37 2022-10-23 stsp done:
540 13b2bc37 2022-10-23 stsp 	imsg_clear(&ibuf);
541 13b2bc37 2022-10-23 stsp 	return err;
542 13b2bc37 2022-10-23 stsp }
543 13b2bc37 2022-10-23 stsp 
544 13b2bc37 2022-10-23 stsp struct repo_read_pack_progress_arg {
545 13b2bc37 2022-10-23 stsp 	int report_progress;
546 13b2bc37 2022-10-23 stsp 	struct imsgbuf *ibuf;
547 13b2bc37 2022-10-23 stsp 	int sent_ready;
548 13b2bc37 2022-10-23 stsp };
549 13b2bc37 2022-10-23 stsp 
550 13b2bc37 2022-10-23 stsp static const struct got_error *
551 13b2bc37 2022-10-23 stsp pack_progress(void *arg, int ncolored, int nfound, int ntrees,
552 13b2bc37 2022-10-23 stsp     off_t packfile_size, int ncommits, int nobj_total, int nobj_deltify,
553 13b2bc37 2022-10-23 stsp     int nobj_written)
554 13b2bc37 2022-10-23 stsp {
555 13b2bc37 2022-10-23 stsp 	struct repo_read_pack_progress_arg *a = arg;
556 13b2bc37 2022-10-23 stsp 	struct gotd_imsg_packfile_progress iprog;
557 13b2bc37 2022-10-23 stsp 	int ret;
558 13b2bc37 2022-10-23 stsp 
559 13b2bc37 2022-10-23 stsp 	if (!a->report_progress)
560 13b2bc37 2022-10-23 stsp 		return NULL;
561 13b2bc37 2022-10-23 stsp 	if (packfile_size > 0 && a->sent_ready)
562 13b2bc37 2022-10-23 stsp 		return NULL;
563 13b2bc37 2022-10-23 stsp 
564 13b2bc37 2022-10-23 stsp 	memset(&iprog, 0, sizeof(iprog));
565 13b2bc37 2022-10-23 stsp 	iprog.ncolored = ncolored;
566 13b2bc37 2022-10-23 stsp 	iprog.nfound = nfound;
567 13b2bc37 2022-10-23 stsp 	iprog.ntrees = ntrees;
568 13b2bc37 2022-10-23 stsp 	iprog.packfile_size = packfile_size;
569 13b2bc37 2022-10-23 stsp 	iprog.ncommits = ncommits;
570 13b2bc37 2022-10-23 stsp 	iprog.nobj_total = nobj_total;
571 13b2bc37 2022-10-23 stsp 	iprog.nobj_deltify = nobj_deltify;
572 13b2bc37 2022-10-23 stsp 	iprog.nobj_written = nobj_written;
573 13b2bc37 2022-10-23 stsp 
574 13b2bc37 2022-10-23 stsp 	/* Using synchronous writes since we are blocking the event loop. */
575 13b2bc37 2022-10-23 stsp 	if (packfile_size == 0) {
576 13b2bc37 2022-10-23 stsp 		ret = imsg_compose(a->ibuf, GOTD_IMSG_PACKFILE_PROGRESS,
577 13b2bc37 2022-10-23 stsp 		    PROC_REPO_READ, repo_read.pid, -1, &iprog, sizeof(iprog));
578 13b2bc37 2022-10-23 stsp 		if (ret == -1) {
579 13b2bc37 2022-10-23 stsp 			return got_error_from_errno("imsg compose "
580 13b2bc37 2022-10-23 stsp 			    "PACKFILE_PROGRESS");
581 13b2bc37 2022-10-23 stsp 		}	
582 13b2bc37 2022-10-23 stsp 	} else {
583 13b2bc37 2022-10-23 stsp 		a->sent_ready = 1;
584 13b2bc37 2022-10-23 stsp 		ret = imsg_compose(a->ibuf, GOTD_IMSG_PACKFILE_READY,
585 13b2bc37 2022-10-23 stsp 		    PROC_REPO_READ, repo_read.pid, -1, &iprog, sizeof(iprog));
586 13b2bc37 2022-10-23 stsp 		if (ret == -1) {
587 13b2bc37 2022-10-23 stsp 			return got_error_from_errno("imsg compose "
588 13b2bc37 2022-10-23 stsp 			    "PACKFILE_READY");
589 13b2bc37 2022-10-23 stsp 		}
590 13b2bc37 2022-10-23 stsp 	}
591 13b2bc37 2022-10-23 stsp 
592 13b2bc37 2022-10-23 stsp 	return gotd_imsg_flush(a->ibuf);
593 13b2bc37 2022-10-23 stsp }
594 13b2bc37 2022-10-23 stsp 
595 13b2bc37 2022-10-23 stsp static const struct got_error *
596 13b2bc37 2022-10-23 stsp receive_delta_cache_fd(struct repo_read_client **client, struct imsg *imsg,
597 13b2bc37 2022-10-23 stsp     struct gotd_imsgev *iev)
598 13b2bc37 2022-10-23 stsp {
599 13b2bc37 2022-10-23 stsp 	struct gotd_imsg_send_packfile ireq;
600 13b2bc37 2022-10-23 stsp 	size_t datalen;
601 13b2bc37 2022-10-23 stsp 
602 13b2bc37 2022-10-23 stsp 	log_debug("receving delta cache file");
603 13b2bc37 2022-10-23 stsp 
604 13b2bc37 2022-10-23 stsp 	if (imsg->fd == -1)
605 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_PRIVSEP_NO_FD);
606 13b2bc37 2022-10-23 stsp 
607 13b2bc37 2022-10-23 stsp 	datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
608 13b2bc37 2022-10-23 stsp 	if (datalen != sizeof(ireq))
609 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_PRIVSEP_LEN);
610 13b2bc37 2022-10-23 stsp 	memcpy(&ireq, imsg->data, sizeof(ireq));
611 13b2bc37 2022-10-23 stsp 
612 13b2bc37 2022-10-23 stsp 	*client = find_client(ireq.client_id);
613 13b2bc37 2022-10-23 stsp 	if (*client == NULL)
614 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_CLIENT_ID);
615 13b2bc37 2022-10-23 stsp 
616 13b2bc37 2022-10-23 stsp 	if ((*client)->delta_cache_fd != -1)
617 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_PRIVSEP_MSG);
618 13b2bc37 2022-10-23 stsp 
619 13b2bc37 2022-10-23 stsp 	(*client)->delta_cache_fd = imsg->fd;
620 13b2bc37 2022-10-23 stsp 	(*client)->report_progress = ireq.report_progress;
621 13b2bc37 2022-10-23 stsp 	return NULL;
622 13b2bc37 2022-10-23 stsp }
623 13b2bc37 2022-10-23 stsp 
624 13b2bc37 2022-10-23 stsp static const struct got_error *
625 13b2bc37 2022-10-23 stsp receive_pack_pipe(struct repo_read_client **client, struct imsg *imsg,
626 13b2bc37 2022-10-23 stsp     struct gotd_imsgev *iev)
627 13b2bc37 2022-10-23 stsp {
628 13b2bc37 2022-10-23 stsp 	struct gotd_imsg_packfile_pipe ireq;
629 13b2bc37 2022-10-23 stsp 	size_t datalen;
630 13b2bc37 2022-10-23 stsp 
631 13b2bc37 2022-10-23 stsp 	log_debug("receving pack pipe descriptor");
632 13b2bc37 2022-10-23 stsp 
633 13b2bc37 2022-10-23 stsp 	if (imsg->fd == -1)
634 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_PRIVSEP_NO_FD);
635 13b2bc37 2022-10-23 stsp 
636 13b2bc37 2022-10-23 stsp 	datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
637 13b2bc37 2022-10-23 stsp 	if (datalen != sizeof(ireq))
638 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_PRIVSEP_LEN);
639 13b2bc37 2022-10-23 stsp 	memcpy(&ireq, imsg->data, sizeof(ireq));
640 13b2bc37 2022-10-23 stsp 
641 13b2bc37 2022-10-23 stsp 	*client = find_client(ireq.client_id);
642 13b2bc37 2022-10-23 stsp 	if (*client == NULL)
643 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_CLIENT_ID);
644 13b2bc37 2022-10-23 stsp 	if ((*client)->pack_pipe[1] != -1)
645 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_PRIVSEP_MSG);
646 13b2bc37 2022-10-23 stsp 
647 13b2bc37 2022-10-23 stsp 	if ((*client)->pack_pipe[0] == -1)
648 13b2bc37 2022-10-23 stsp 		(*client)->pack_pipe[0] = imsg->fd;
649 13b2bc37 2022-10-23 stsp 	else
650 13b2bc37 2022-10-23 stsp 		(*client)->pack_pipe[1] = imsg->fd;
651 13b2bc37 2022-10-23 stsp 
652 13b2bc37 2022-10-23 stsp 	return NULL;
653 13b2bc37 2022-10-23 stsp }
654 13b2bc37 2022-10-23 stsp 
655 13b2bc37 2022-10-23 stsp static const struct got_error *
656 13b2bc37 2022-10-23 stsp send_packfile(struct repo_read_client *client, struct imsg *imsg,
657 13b2bc37 2022-10-23 stsp     struct gotd_imsgev *iev)
658 13b2bc37 2022-10-23 stsp {
659 13b2bc37 2022-10-23 stsp 	const struct got_error *err = NULL;
660 13b2bc37 2022-10-23 stsp 	struct gotd_imsg_packfile_done idone;
661 13b2bc37 2022-10-23 stsp 	uint8_t packsha1[SHA1_DIGEST_LENGTH];
662 13b2bc37 2022-10-23 stsp 	char hex[SHA1_DIGEST_STRING_LENGTH];
663 13b2bc37 2022-10-23 stsp 	FILE *delta_cache = NULL;
664 13b2bc37 2022-10-23 stsp 	struct imsgbuf ibuf;
665 13b2bc37 2022-10-23 stsp 	struct repo_read_pack_progress_arg pa;
666 13b2bc37 2022-10-23 stsp 	struct got_ratelimit rl;
667 13b2bc37 2022-10-23 stsp 
668 13b2bc37 2022-10-23 stsp 	log_debug("packfile request received");
669 13b2bc37 2022-10-23 stsp 
670 13b2bc37 2022-10-23 stsp 	got_ratelimit_init(&rl, 2, 0);
671 13b2bc37 2022-10-23 stsp 
672 13b2bc37 2022-10-23 stsp 	if (client->delta_cache_fd == -1 ||
673 13b2bc37 2022-10-23 stsp 	    client->pack_pipe[0] == -1 ||
674 13b2bc37 2022-10-23 stsp 	    client->pack_pipe[1] == -1)
675 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_PRIVSEP_NO_FD);
676 13b2bc37 2022-10-23 stsp 
677 13b2bc37 2022-10-23 stsp 	imsg_init(&ibuf, client->fd);
678 13b2bc37 2022-10-23 stsp 
679 13b2bc37 2022-10-23 stsp 	/* Send pack file pipe to gotsh(1). */
680 13b2bc37 2022-10-23 stsp 	if (imsg_compose(&ibuf, GOTD_IMSG_PACKFILE_PIPE, PROC_REPO_READ,
681 13b2bc37 2022-10-23 stsp 	    repo_read.pid, client->pack_pipe[1], NULL, 0) == -1) {
682 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("imsg_compose ACK");
683 13b2bc37 2022-10-23 stsp 		if (err)	
684 13b2bc37 2022-10-23 stsp 			goto done;
685 13b2bc37 2022-10-23 stsp 	}
686 13b2bc37 2022-10-23 stsp 	client->pack_pipe[1] = -1;
687 13b2bc37 2022-10-23 stsp 	err = gotd_imsg_flush(&ibuf);
688 13b2bc37 2022-10-23 stsp 	if (err)
689 13b2bc37 2022-10-23 stsp 		goto done;
690 13b2bc37 2022-10-23 stsp 
691 13b2bc37 2022-10-23 stsp 	delta_cache = fdopen(client->delta_cache_fd, "w+");
692 13b2bc37 2022-10-23 stsp 	if (delta_cache == NULL) {
693 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("fdopen");
694 13b2bc37 2022-10-23 stsp 		goto done;
695 13b2bc37 2022-10-23 stsp 	}
696 13b2bc37 2022-10-23 stsp 	client->delta_cache_fd = -1;
697 13b2bc37 2022-10-23 stsp 
698 13b2bc37 2022-10-23 stsp 	memset(&pa, 0, sizeof(pa));
699 13b2bc37 2022-10-23 stsp 	pa.ibuf = &ibuf;
700 13b2bc37 2022-10-23 stsp 	pa.report_progress = client->report_progress;
701 13b2bc37 2022-10-23 stsp 
702 13b2bc37 2022-10-23 stsp 	err = got_pack_create(packsha1, client->pack_pipe[0], delta_cache,
703 13b2bc37 2022-10-23 stsp 	    client->have_ids.ids, client->have_ids.nids,
704 13b2bc37 2022-10-23 stsp 	    client->want_ids.ids, client->want_ids.nids,
705 13b2bc37 2022-10-23 stsp 	    repo_read.repo, 0, 1, pack_progress, &pa, &rl,
706 13b2bc37 2022-10-23 stsp 	    check_cancelled, NULL);
707 13b2bc37 2022-10-23 stsp 	if (err)
708 13b2bc37 2022-10-23 stsp 		goto done;
709 13b2bc37 2022-10-23 stsp 	
710 13b2bc37 2022-10-23 stsp 	if (log_getverbose() > 0 &&
711 13b2bc37 2022-10-23 stsp 	    got_sha1_digest_to_str(packsha1, hex, sizeof(hex)))
712 13b2bc37 2022-10-23 stsp 		log_debug("sent pack-%s.pack", hex);
713 13b2bc37 2022-10-23 stsp 
714 13b2bc37 2022-10-23 stsp 	memset(&idone, 0, sizeof(idone));
715 13b2bc37 2022-10-23 stsp 	idone.client_id = client->id;
716 13b2bc37 2022-10-23 stsp 	if (gotd_imsg_compose_event(iev, GOTD_IMSG_PACKFILE_DONE,
717 13b2bc37 2022-10-23 stsp 	    PROC_REPO_READ, -1, &idone, sizeof(idone)) == -1)
718 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("imsg compose PACKFILE_DONE");
719 13b2bc37 2022-10-23 stsp done:
720 13b2bc37 2022-10-23 stsp 	if (delta_cache != NULL && fclose(delta_cache) == EOF && err == NULL)
721 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("fclose");
722 13b2bc37 2022-10-23 stsp 	imsg_clear(&ibuf);
723 13b2bc37 2022-10-23 stsp 	return err;
724 13b2bc37 2022-10-23 stsp }
725 13b2bc37 2022-10-23 stsp 
726 13b2bc37 2022-10-23 stsp static const struct got_error *
727 13b2bc37 2022-10-23 stsp recv_disconnect(struct imsg *imsg)
728 13b2bc37 2022-10-23 stsp {
729 13b2bc37 2022-10-23 stsp 	const struct got_error *err = NULL;
730 13b2bc37 2022-10-23 stsp 	struct gotd_imsg_disconnect idisconnect;
731 13b2bc37 2022-10-23 stsp 	size_t datalen;
732 13b2bc37 2022-10-23 stsp 	int client_fd, delta_cache_fd, pipe[2];
733 13b2bc37 2022-10-23 stsp 	struct repo_read_client *client = NULL;
734 13b2bc37 2022-10-23 stsp 	uint64_t slot;
735 13b2bc37 2022-10-23 stsp 
736 13b2bc37 2022-10-23 stsp 	datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
737 13b2bc37 2022-10-23 stsp 	if (datalen != sizeof(idisconnect))
738 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_PRIVSEP_LEN);
739 13b2bc37 2022-10-23 stsp 	memcpy(&idisconnect, imsg->data, sizeof(idisconnect));
740 13b2bc37 2022-10-23 stsp 
741 13b2bc37 2022-10-23 stsp 	log_debug("client disconnecting");
742 13b2bc37 2022-10-23 stsp 
743 13b2bc37 2022-10-23 stsp 	client = find_client(idisconnect.client_id);
744 13b2bc37 2022-10-23 stsp 	if (client == NULL)
745 13b2bc37 2022-10-23 stsp 		return got_error(GOT_ERR_CLIENT_ID);
746 13b2bc37 2022-10-23 stsp 
747 13b2bc37 2022-10-23 stsp 	slot = client_hash(client->id) % nitems(repo_read_clients);
748 13b2bc37 2022-10-23 stsp 	STAILQ_REMOVE(&repo_read_clients[slot], client, repo_read_client,
749 13b2bc37 2022-10-23 stsp 	    entry);
750 13b2bc37 2022-10-23 stsp 	free_object_ids(&client->have_ids);
751 13b2bc37 2022-10-23 stsp 	free_object_ids(&client->want_ids);
752 13b2bc37 2022-10-23 stsp 	client_fd = client->fd;
753 13b2bc37 2022-10-23 stsp 	delta_cache_fd = client->delta_cache_fd;
754 13b2bc37 2022-10-23 stsp 	pipe[0] = client->pack_pipe[0];
755 13b2bc37 2022-10-23 stsp 	pipe[1] = client->pack_pipe[1];
756 13b2bc37 2022-10-23 stsp 	free(client);
757 13b2bc37 2022-10-23 stsp 	if (close(client_fd) == -1)
758 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("close");
759 13b2bc37 2022-10-23 stsp 	if (delta_cache_fd != -1 && close(delta_cache_fd) == -1 && err == NULL)
760 13b2bc37 2022-10-23 stsp 		return got_error_from_errno("close");
761 13b2bc37 2022-10-23 stsp 	if (pipe[0] != -1 && close(pipe[0]) == -1 && err == NULL)
762 13b2bc37 2022-10-23 stsp 		return got_error_from_errno("close");
763 13b2bc37 2022-10-23 stsp 	if (pipe[1] != -1 && close(pipe[1]) == -1 && err == NULL)
764 13b2bc37 2022-10-23 stsp 		return got_error_from_errno("close");
765 13b2bc37 2022-10-23 stsp 	return err;
766 13b2bc37 2022-10-23 stsp }
767 13b2bc37 2022-10-23 stsp 
768 13b2bc37 2022-10-23 stsp static void
769 13b2bc37 2022-10-23 stsp repo_read_dispatch(int fd, short event, void *arg)
770 13b2bc37 2022-10-23 stsp {
771 13b2bc37 2022-10-23 stsp 	const struct got_error *err = NULL;
772 13b2bc37 2022-10-23 stsp 	struct gotd_imsgev *iev = arg;
773 13b2bc37 2022-10-23 stsp 	struct imsgbuf *ibuf = &iev->ibuf;
774 13b2bc37 2022-10-23 stsp 	struct imsg imsg;
775 13b2bc37 2022-10-23 stsp 	ssize_t n;
776 13b2bc37 2022-10-23 stsp 	int shut = 0;
777 13b2bc37 2022-10-23 stsp 	struct repo_read_client *client = NULL;
778 13b2bc37 2022-10-23 stsp 
779 13b2bc37 2022-10-23 stsp 	if (event & EV_READ) {
780 13b2bc37 2022-10-23 stsp 		if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN)
781 13b2bc37 2022-10-23 stsp 			fatal("imsg_read error");
782 13b2bc37 2022-10-23 stsp 		if (n == 0)	/* Connection closed. */
783 13b2bc37 2022-10-23 stsp 			shut = 1;
784 13b2bc37 2022-10-23 stsp 	}
785 13b2bc37 2022-10-23 stsp 
786 13b2bc37 2022-10-23 stsp 	if (event & EV_WRITE) {
787 13b2bc37 2022-10-23 stsp 		n = msgbuf_write(&ibuf->w);
788 13b2bc37 2022-10-23 stsp 		if (n == -1 && errno != EAGAIN)
789 13b2bc37 2022-10-23 stsp 			fatal("msgbuf_write");
790 13b2bc37 2022-10-23 stsp 		if (n == 0)	/* Connection closed. */
791 13b2bc37 2022-10-23 stsp 			shut = 1;
792 13b2bc37 2022-10-23 stsp 	}
793 13b2bc37 2022-10-23 stsp 
794 13b2bc37 2022-10-23 stsp 	while (err == NULL && check_cancelled(NULL) == NULL) {
795 13b2bc37 2022-10-23 stsp 		client = NULL;
796 13b2bc37 2022-10-23 stsp 		if ((n = imsg_get(ibuf, &imsg)) == -1)
797 13b2bc37 2022-10-23 stsp 			fatal("%s: imsg_get", __func__);
798 13b2bc37 2022-10-23 stsp 		if (n == 0)	/* No more messages. */
799 13b2bc37 2022-10-23 stsp 			break;
800 13b2bc37 2022-10-23 stsp 
801 13b2bc37 2022-10-23 stsp 		switch (imsg.hdr.type) {
802 13b2bc37 2022-10-23 stsp 		case GOTD_IMSG_LIST_REFS_INTERNAL:
803 13b2bc37 2022-10-23 stsp 			err = list_refs(&client, &imsg);
804 13b2bc37 2022-10-23 stsp 			if (err)
805 13b2bc37 2022-10-23 stsp 				log_warnx("%s: ls-refs: %s", repo_read.title,
806 13b2bc37 2022-10-23 stsp 				    err->msg);
807 13b2bc37 2022-10-23 stsp 			break;
808 13b2bc37 2022-10-23 stsp 		case GOTD_IMSG_WANT:
809 13b2bc37 2022-10-23 stsp 			err = recv_want(&client, &imsg);
810 13b2bc37 2022-10-23 stsp 			if (err)
811 13b2bc37 2022-10-23 stsp 				log_warnx("%s: want-line: %s", repo_read.title,
812 13b2bc37 2022-10-23 stsp 				    err->msg);
813 13b2bc37 2022-10-23 stsp 			break;
814 13b2bc37 2022-10-23 stsp 		case GOTD_IMSG_HAVE:
815 13b2bc37 2022-10-23 stsp 			err = recv_have(&client, &imsg);
816 13b2bc37 2022-10-23 stsp 			if (err)
817 13b2bc37 2022-10-23 stsp 				log_warnx("%s: have-line: %s", repo_read.title,
818 13b2bc37 2022-10-23 stsp 				    err->msg);
819 13b2bc37 2022-10-23 stsp 			break;
820 13b2bc37 2022-10-23 stsp 		case GOTD_IMSG_SEND_PACKFILE:
821 13b2bc37 2022-10-23 stsp 			err = receive_delta_cache_fd(&client, &imsg, iev);
822 13b2bc37 2022-10-23 stsp 			if (err)
823 13b2bc37 2022-10-23 stsp 				log_warnx("%s: receiving delta cache: %s",
824 13b2bc37 2022-10-23 stsp 				    repo_read.title, err->msg);
825 13b2bc37 2022-10-23 stsp 			break;
826 13b2bc37 2022-10-23 stsp 		case GOTD_IMSG_PACKFILE_PIPE:
827 13b2bc37 2022-10-23 stsp 			err = receive_pack_pipe(&client, &imsg, iev);
828 13b2bc37 2022-10-23 stsp 			if (err) {
829 13b2bc37 2022-10-23 stsp 				log_warnx("%s: receiving pack pipe: %s",
830 13b2bc37 2022-10-23 stsp 				    repo_read.title, err->msg);
831 13b2bc37 2022-10-23 stsp 				break;
832 13b2bc37 2022-10-23 stsp 			}
833 13b2bc37 2022-10-23 stsp 			if (client->pack_pipe[1] == -1)
834 13b2bc37 2022-10-23 stsp 				break;
835 13b2bc37 2022-10-23 stsp 			err = send_packfile(client, &imsg, iev);
836 13b2bc37 2022-10-23 stsp 			if (err)
837 13b2bc37 2022-10-23 stsp 				log_warnx("%s: sending packfile: %s",
838 13b2bc37 2022-10-23 stsp 				    repo_read.title, err->msg);
839 13b2bc37 2022-10-23 stsp 			break;
840 13b2bc37 2022-10-23 stsp 		case GOTD_IMSG_DISCONNECT:
841 13b2bc37 2022-10-23 stsp 			err = recv_disconnect(&imsg);
842 13b2bc37 2022-10-23 stsp 			if (err)
843 13b2bc37 2022-10-23 stsp 				log_warnx("%s: disconnect: %s",
844 13b2bc37 2022-10-23 stsp 				    repo_read.title, err->msg);
845 13b2bc37 2022-10-23 stsp 			break;
846 13b2bc37 2022-10-23 stsp 		default:
847 13b2bc37 2022-10-23 stsp 			log_debug("%s: unexpected imsg %d", repo_read.title,
848 13b2bc37 2022-10-23 stsp 			    imsg.hdr.type);
849 13b2bc37 2022-10-23 stsp 			break;
850 13b2bc37 2022-10-23 stsp 		}
851 13b2bc37 2022-10-23 stsp 
852 13b2bc37 2022-10-23 stsp 		imsg_free(&imsg);
853 13b2bc37 2022-10-23 stsp 	}
854 13b2bc37 2022-10-23 stsp 
855 13b2bc37 2022-10-23 stsp 	if (!shut && check_cancelled(NULL) == NULL) {
856 13b2bc37 2022-10-23 stsp 		if (err &&
857 13b2bc37 2022-10-23 stsp 		    gotd_imsg_send_error_event(iev, PROC_REPO_READ,
858 13b2bc37 2022-10-23 stsp 		        client ? client->id : 0, err) == -1) {
859 13b2bc37 2022-10-23 stsp 			log_warnx("could not send error to parent: %s",
860 13b2bc37 2022-10-23 stsp 			    err->msg);
861 13b2bc37 2022-10-23 stsp 		}
862 13b2bc37 2022-10-23 stsp 		gotd_imsg_event_add(iev);
863 13b2bc37 2022-10-23 stsp 	} else {
864 13b2bc37 2022-10-23 stsp 		/* This pipe is dead. Remove its event handler */
865 13b2bc37 2022-10-23 stsp 		event_del(&iev->ev);
866 13b2bc37 2022-10-23 stsp 		event_loopexit(NULL);
867 13b2bc37 2022-10-23 stsp 	}
868 13b2bc37 2022-10-23 stsp }
869 13b2bc37 2022-10-23 stsp 
870 13b2bc37 2022-10-23 stsp void
871 13b2bc37 2022-10-23 stsp repo_read_main(const char *title, int *pack_fds, int *temp_fds)
872 13b2bc37 2022-10-23 stsp {
873 13b2bc37 2022-10-23 stsp 	const struct got_error *err = NULL;
874 13b2bc37 2022-10-23 stsp 	struct gotd_imsgev iev;
875 13b2bc37 2022-10-23 stsp 
876 13b2bc37 2022-10-23 stsp 	repo_read.title = title;
877 13b2bc37 2022-10-23 stsp 	repo_read.pid = getpid();
878 13b2bc37 2022-10-23 stsp 	repo_read.pack_fds = pack_fds;
879 13b2bc37 2022-10-23 stsp 	repo_read.temp_fds = temp_fds;
880 13b2bc37 2022-10-23 stsp 
881 13b2bc37 2022-10-23 stsp 	arc4random_buf(&clients_hash_key, sizeof(clients_hash_key));
882 13b2bc37 2022-10-23 stsp 
883 13b2bc37 2022-10-23 stsp 	/*
884 13b2bc37 2022-10-23 stsp 	 * Open a repository in the root directory.
885 13b2bc37 2022-10-23 stsp 	 * We are already in chroot at this point.
886 13b2bc37 2022-10-23 stsp 	 */
887 13b2bc37 2022-10-23 stsp 	err = got_repo_open(&repo_read.repo, "/", NULL, pack_fds);
888 13b2bc37 2022-10-23 stsp 	if (err)
889 13b2bc37 2022-10-23 stsp 		goto done;
890 13b2bc37 2022-10-23 stsp 	if (!got_repo_is_bare(repo_read.repo)) {
891 13b2bc37 2022-10-23 stsp 		err = got_error_msg(GOT_ERR_NOT_GIT_REPO,
892 13b2bc37 2022-10-23 stsp 		    "bare git repository required");
893 13b2bc37 2022-10-23 stsp 		goto done;
894 13b2bc37 2022-10-23 stsp 	}
895 13b2bc37 2022-10-23 stsp 
896 13b2bc37 2022-10-23 stsp 	got_repo_temp_fds_set(repo_read.repo, temp_fds);
897 13b2bc37 2022-10-23 stsp 
898 13b2bc37 2022-10-23 stsp 	signal(SIGINT, catch_sigint);
899 13b2bc37 2022-10-23 stsp 	signal(SIGTERM, catch_sigterm);
900 13b2bc37 2022-10-23 stsp 	signal(SIGPIPE, SIG_IGN);
901 13b2bc37 2022-10-23 stsp 	signal(SIGHUP, SIG_IGN);
902 13b2bc37 2022-10-23 stsp 
903 13b2bc37 2022-10-23 stsp 	imsg_init(&iev.ibuf, GOTD_SOCK_FILENO);
904 13b2bc37 2022-10-23 stsp 	iev.handler = repo_read_dispatch;
905 13b2bc37 2022-10-23 stsp 	iev.events = EV_READ;
906 13b2bc37 2022-10-23 stsp 	iev.handler_arg = NULL;
907 13b2bc37 2022-10-23 stsp 	event_set(&iev.ev, iev.ibuf.fd, EV_READ, repo_read_dispatch, &iev);
908 13b2bc37 2022-10-23 stsp 	if (event_add(&iev.ev, NULL) == -1) {
909 13b2bc37 2022-10-23 stsp 		err = got_error_from_errno("event_add");
910 13b2bc37 2022-10-23 stsp 		goto done;
911 13b2bc37 2022-10-23 stsp 	}
912 13b2bc37 2022-10-23 stsp 
913 13b2bc37 2022-10-23 stsp 	event_dispatch();
914 13b2bc37 2022-10-23 stsp done:
915 13b2bc37 2022-10-23 stsp 	if (err)
916 13b2bc37 2022-10-23 stsp 		log_warnx("%s: %s", title, err->msg);
917 13b2bc37 2022-10-23 stsp 	repo_read_shutdown();
918 13b2bc37 2022-10-23 stsp }
919 13b2bc37 2022-10-23 stsp 
920 13b2bc37 2022-10-23 stsp void
921 13b2bc37 2022-10-23 stsp repo_read_shutdown(void)
922 13b2bc37 2022-10-23 stsp {
923 13b2bc37 2022-10-23 stsp 	log_debug("%s: shutting down", repo_read.title);
924 13b2bc37 2022-10-23 stsp 	if (repo_read.repo)
925 13b2bc37 2022-10-23 stsp 		got_repo_close(repo_read.repo);
926 13b2bc37 2022-10-23 stsp 	got_repo_pack_fds_close(repo_read.pack_fds);
927 13b2bc37 2022-10-23 stsp 	got_repo_temp_fds_close(repo_read.temp_fds);
928 13b2bc37 2022-10-23 stsp 	exit(0);
929 13b2bc37 2022-10-23 stsp }