1 93658fb9 2020-03-18 stsp /*
  2 93658fb9 2020-03-18 stsp  * Copyright (c) 2019 Ori Bernstein <ori@openbsd.org>
  3 668a20f6 2020-03-18 stsp  * Copyright (c) 2020 Stefan Sperling <stsp@openbsd.org>
  4 93658fb9 2020-03-18 stsp  *
  5 93658fb9 2020-03-18 stsp  * Permission to use, copy, modify, and distribute this software for any
  6 93658fb9 2020-03-18 stsp  * purpose with or without fee is hereby granted, provided that the above
  7 93658fb9 2020-03-18 stsp  * copyright notice and this permission notice appear in all copies.
  8 93658fb9 2020-03-18 stsp  *
  9 93658fb9 2020-03-18 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 10 93658fb9 2020-03-18 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 11 93658fb9 2020-03-18 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 12 93658fb9 2020-03-18 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 13 93658fb9 2020-03-18 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 14 93658fb9 2020-03-18 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 15 93658fb9 2020-03-18 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 16 93658fb9 2020-03-18 stsp  */
 17 93658fb9 2020-03-18 stsp 
 18 93658fb9 2020-03-18 stsp #include <sys/types.h>
 19 0136599f 2022-10-20 stsp #include <sys/queue.h>
 20 2e5a6fad 2020-03-18 stsp #include <sys/mman.h>
 21 0136599f 2022-10-20 stsp #include <sys/uio.h>
 22 93658fb9 2020-03-18 stsp 
 23 0136599f 2022-10-20 stsp #include <sha1.h>
 24 5822e79e 2023-02-23 op #include <sha2.h>
 25 93658fb9 2020-03-18 stsp #include <stdint.h>
 26 93658fb9 2020-03-18 stsp #include <stdio.h>
 27 93658fb9 2020-03-18 stsp #include <stdlib.h>
 28 93658fb9 2020-03-18 stsp #include <string.h>
 29 0136599f 2022-10-20 stsp #include <imsg.h>
 30 0136599f 2022-10-20 stsp #include <limits.h>
 31 0136599f 2022-10-20 stsp #include <time.h>
 32 81a12da5 2020-09-09 naddy #include <unistd.h>
 33 93658fb9 2020-03-18 stsp 
 34 93658fb9 2020-03-18 stsp #include "got_error.h"
 35 93658fb9 2020-03-18 stsp #include "got_object.h"
 36 93658fb9 2020-03-18 stsp 
 37 93658fb9 2020-03-18 stsp #include "got_lib_delta.h"
 38 0136599f 2022-10-20 stsp #include "got_lib_delta_cache.h"
 39 93658fb9 2020-03-18 stsp #include "got_lib_object.h"
 40 93658fb9 2020-03-18 stsp #include "got_lib_privsep.h"
 41 d0f1e2f1 2022-02-23 stsp #include "got_lib_ratelimit.h"
 42 0136599f 2022-10-20 stsp #include "got_lib_pack.h"
 43 0136599f 2022-10-20 stsp #include "got_lib_pack_index.h"
 44 93658fb9 2020-03-18 stsp 
 45 d582f26c 2020-03-18 stsp #ifndef nitems
 46 d582f26c 2020-03-18 stsp #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
 47 d582f26c 2020-03-18 stsp #endif
 48 d582f26c 2020-03-18 stsp 
 49 668a20f6 2020-03-18 stsp static const struct got_error *
 50 9316cc27 2022-10-20 stsp send_index_pack_progress(void *arg, uint32_t nobj_total, uint32_t nobj_indexed,
 51 9316cc27 2022-10-20 stsp     uint32_t nobj_loose, uint32_t nobj_resolved)
 52 93658fb9 2020-03-18 stsp {
 53 0136599f 2022-10-20 stsp 	struct imsgbuf *ibuf = arg;
 54 e70bf110 2020-03-22 stsp 	struct got_imsg_index_pack_progress iprogress;
 55 d0f1e2f1 2022-02-23 stsp 
 56 e70bf110 2020-03-22 stsp 	iprogress.nobj_total = nobj_total;
 57 e70bf110 2020-03-22 stsp 	iprogress.nobj_indexed = nobj_indexed;
 58 e70bf110 2020-03-22 stsp 	iprogress.nobj_loose = nobj_loose;
 59 e70bf110 2020-03-22 stsp 	iprogress.nobj_resolved = nobj_resolved;
 60 e70bf110 2020-03-22 stsp 
 61 e70bf110 2020-03-22 stsp 	if (imsg_compose(ibuf, GOT_IMSG_IDXPACK_PROGRESS, 0, 0, -1,
 62 e70bf110 2020-03-22 stsp 	    &iprogress, sizeof(iprogress)) == -1)
 63 e70bf110 2020-03-22 stsp 		return got_error_from_errno("imsg_compose IDXPACK_PROGRESS");
 64 e70bf110 2020-03-22 stsp 
 65 e70bf110 2020-03-22 stsp 	return got_privsep_flush_imsg(ibuf);
 66 e70bf110 2020-03-22 stsp }
 67 e70bf110 2020-03-22 stsp 
 68 e70bf110 2020-03-22 stsp static const struct got_error *
 69 e70bf110 2020-03-22 stsp send_index_pack_done(struct imsgbuf *ibuf)
 70 e70bf110 2020-03-22 stsp {
 71 e70bf110 2020-03-22 stsp 	if (imsg_compose(ibuf, GOT_IMSG_IDXPACK_DONE, 0, 0, -1, NULL, 0) == -1)
 72 e70bf110 2020-03-22 stsp 		return got_error_from_errno("imsg_compose FETCH");
 73 e70bf110 2020-03-22 stsp 	return got_privsep_flush_imsg(ibuf);
 74 950de2cd 2020-03-18 stsp }
 75 950de2cd 2020-03-18 stsp 
 76 e70bf110 2020-03-22 stsp 
 77 93658fb9 2020-03-18 stsp int
 78 93658fb9 2020-03-18 stsp main(int argc, char **argv)
 79 93658fb9 2020-03-18 stsp {
 80 668a20f6 2020-03-18 stsp 	const struct got_error *err = NULL, *close_err;
 81 93658fb9 2020-03-18 stsp 	struct imsgbuf ibuf;
 82 93658fb9 2020-03-18 stsp 	struct imsg imsg;
 83 6059809a 2020-12-17 stsp 	size_t i;
 84 6059809a 2020-12-17 stsp 	int idxfd = -1, tmpfd = -1;
 85 d582f26c 2020-03-18 stsp 	FILE *tmpfiles[3];
 86 668a20f6 2020-03-18 stsp 	struct got_pack pack;
 87 668a20f6 2020-03-18 stsp 	uint8_t pack_hash[SHA1_DIGEST_LENGTH];
 88 668a20f6 2020-03-18 stsp 	off_t packfile_size;
 89 713d6e11 2022-10-20 stsp 	struct got_ratelimit rl;
 90 668a20f6 2020-03-18 stsp #if 0
 91 668a20f6 2020-03-18 stsp 	static int attached;
 92 668a20f6 2020-03-18 stsp 	while (!attached)
 93 668a20f6 2020-03-18 stsp 		sleep(1);
 94 668a20f6 2020-03-18 stsp #endif
 95 93658fb9 2020-03-18 stsp 
 96 713d6e11 2022-10-20 stsp 	got_ratelimit_init(&rl, 0, 500);
 97 713d6e11 2022-10-20 stsp 
 98 d582f26c 2020-03-18 stsp 	for (i = 0; i < nitems(tmpfiles); i++)
 99 d582f26c 2020-03-18 stsp 		tmpfiles[i] = NULL;
100 d582f26c 2020-03-18 stsp 
101 668a20f6 2020-03-18 stsp 	memset(&pack, 0, sizeof(pack));
102 668a20f6 2020-03-18 stsp 	pack.fd = -1;
103 dac5c75e 2022-06-04 stsp 	err = got_delta_cache_alloc(&pack.delta_cache);
104 dac5c75e 2022-06-04 stsp 	if (err)
105 93658fb9 2020-03-18 stsp 		goto done;
106 668a20f6 2020-03-18 stsp 
107 668a20f6 2020-03-18 stsp 	imsg_init(&ibuf, GOT_IMSG_FD_CHILD);
108 861f3006 2020-03-18 stsp #ifndef PROFILE
109 861f3006 2020-03-18 stsp 	/* revoke access to most system calls */
110 861f3006 2020-03-18 stsp 	if (pledge("stdio recvfd", NULL) == -1) {
111 861f3006 2020-03-18 stsp 		err = got_error_from_errno("pledge");
112 861f3006 2020-03-18 stsp 		got_privsep_send_error(&ibuf, err);
113 861f3006 2020-03-18 stsp 		return 1;
114 861f3006 2020-03-18 stsp 	}
115 861f3006 2020-03-18 stsp #endif
116 668a20f6 2020-03-18 stsp 	err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
117 668a20f6 2020-03-18 stsp 	if (err)
118 668a20f6 2020-03-18 stsp 		goto done;
119 93658fb9 2020-03-18 stsp 	if (imsg.hdr.type == GOT_IMSG_STOP)
120 93658fb9 2020-03-18 stsp 		goto done;
121 93658fb9 2020-03-18 stsp 	if (imsg.hdr.type != GOT_IMSG_IDXPACK_REQUEST) {
122 93658fb9 2020-03-18 stsp 		err = got_error(GOT_ERR_PRIVSEP_MSG);
123 93658fb9 2020-03-18 stsp 		goto done;
124 93658fb9 2020-03-18 stsp 	}
125 668a20f6 2020-03-18 stsp 	if (imsg.hdr.len - IMSG_HEADER_SIZE != sizeof(pack_hash)) {
126 93658fb9 2020-03-18 stsp 		err = got_error(GOT_ERR_PRIVSEP_LEN);
127 93658fb9 2020-03-18 stsp 		goto done;
128 93658fb9 2020-03-18 stsp 	}
129 668a20f6 2020-03-18 stsp 	memcpy(pack_hash, imsg.data, sizeof(pack_hash));
130 668a20f6 2020-03-18 stsp 	pack.fd = imsg.fd;
131 93658fb9 2020-03-18 stsp 
132 668a20f6 2020-03-18 stsp 	err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
133 668a20f6 2020-03-18 stsp 	if (err)
134 93658fb9 2020-03-18 stsp 		goto done;
135 93658fb9 2020-03-18 stsp 	if (imsg.hdr.type == GOT_IMSG_STOP)
136 93658fb9 2020-03-18 stsp 		goto done;
137 73ab1060 2020-03-18 stsp 	if (imsg.hdr.type != GOT_IMSG_IDXPACK_OUTFD) {
138 93658fb9 2020-03-18 stsp 		err = got_error(GOT_ERR_PRIVSEP_MSG);
139 93658fb9 2020-03-18 stsp 		goto done;
140 93658fb9 2020-03-18 stsp 	}
141 93658fb9 2020-03-18 stsp 	if (imsg.hdr.len - IMSG_HEADER_SIZE != 0) {
142 93658fb9 2020-03-18 stsp 		err = got_error(GOT_ERR_PRIVSEP_LEN);
143 93658fb9 2020-03-18 stsp 		goto done;
144 93658fb9 2020-03-18 stsp 	}
145 93658fb9 2020-03-18 stsp 	idxfd = imsg.fd;
146 4788f1ce 2020-03-18 stsp 
147 d582f26c 2020-03-18 stsp 	for (i = 0; i < nitems(tmpfiles); i++) {
148 d582f26c 2020-03-18 stsp 		err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
149 d582f26c 2020-03-18 stsp 		if (err)
150 d582f26c 2020-03-18 stsp 			goto done;
151 d582f26c 2020-03-18 stsp 		if (imsg.hdr.type == GOT_IMSG_STOP)
152 d582f26c 2020-03-18 stsp 			goto done;
153 d582f26c 2020-03-18 stsp 		if (imsg.hdr.type != GOT_IMSG_TMPFD) {
154 d582f26c 2020-03-18 stsp 			err = got_error(GOT_ERR_PRIVSEP_MSG);
155 d582f26c 2020-03-18 stsp 			goto done;
156 d582f26c 2020-03-18 stsp 		}
157 d582f26c 2020-03-18 stsp 		if (imsg.hdr.len - IMSG_HEADER_SIZE != 0) {
158 d582f26c 2020-03-18 stsp 			err = got_error(GOT_ERR_PRIVSEP_LEN);
159 d582f26c 2020-03-18 stsp 			goto done;
160 d582f26c 2020-03-18 stsp 		}
161 d582f26c 2020-03-18 stsp 		tmpfd = imsg.fd;
162 d582f26c 2020-03-18 stsp 		tmpfiles[i] = fdopen(tmpfd, "w+");
163 d582f26c 2020-03-18 stsp 		if (tmpfiles[i] == NULL) {
164 d582f26c 2020-03-18 stsp 			err = got_error_from_errno("fdopen");
165 d582f26c 2020-03-18 stsp 			goto done;
166 d582f26c 2020-03-18 stsp 		}
167 d582f26c 2020-03-18 stsp 		tmpfd = -1;
168 4788f1ce 2020-03-18 stsp 	}
169 93658fb9 2020-03-18 stsp 
170 668a20f6 2020-03-18 stsp 	if (lseek(pack.fd, 0, SEEK_END) == -1) {
171 668a20f6 2020-03-18 stsp 		err = got_error_from_errno("lseek");
172 668a20f6 2020-03-18 stsp 		goto done;
173 668a20f6 2020-03-18 stsp 	}
174 668a20f6 2020-03-18 stsp 	packfile_size = lseek(pack.fd, 0, SEEK_CUR);
175 668a20f6 2020-03-18 stsp 	if (packfile_size == -1) {
176 668a20f6 2020-03-18 stsp 		err = got_error_from_errno("lseek");
177 668a20f6 2020-03-18 stsp 		goto done;
178 668a20f6 2020-03-18 stsp 	}
179 ad4cc361 2022-10-27 op 	pack.filesize = packfile_size;
180 668a20f6 2020-03-18 stsp 
181 668a20f6 2020-03-18 stsp 	if (lseek(pack.fd, 0, SEEK_SET) == -1) {
182 668a20f6 2020-03-18 stsp 		err = got_error_from_errno("lseek");
183 668a20f6 2020-03-18 stsp 		goto done;
184 668a20f6 2020-03-18 stsp 	}
185 668a20f6 2020-03-18 stsp 
186 2e5a6fad 2020-03-18 stsp #ifndef GOT_PACK_NO_MMAP
187 1c28a361 2022-10-25 op 	if (pack.filesize > 0 && pack.filesize <= SIZE_MAX) {
188 1c28a361 2022-10-25 op 		pack.map = mmap(NULL, pack.filesize, PROT_READ, MAP_PRIVATE,
189 1c28a361 2022-10-25 op 		    pack.fd, 0);
190 1c28a361 2022-10-25 op 		if (pack.map == MAP_FAILED)
191 1c28a361 2022-10-25 op 			pack.map = NULL; /* fall back to read(2) */
192 1c28a361 2022-10-25 op 	}
193 2e5a6fad 2020-03-18 stsp #endif
194 713d6e11 2022-10-20 stsp 	err = got_pack_index(&pack, idxfd, tmpfiles[0], tmpfiles[1],
195 713d6e11 2022-10-20 stsp 	    tmpfiles[2], pack_hash, send_index_pack_progress, &ibuf, &rl);
196 93658fb9 2020-03-18 stsp done:
197 668a20f6 2020-03-18 stsp 	close_err = got_pack_close(&pack);
198 668a20f6 2020-03-18 stsp 	if (close_err && err == NULL)
199 668a20f6 2020-03-18 stsp 		err = close_err;
200 668a20f6 2020-03-18 stsp 	if (idxfd != -1 && close(idxfd) == -1 && err == NULL)
201 668a20f6 2020-03-18 stsp 		err = got_error_from_errno("close");
202 4788f1ce 2020-03-18 stsp 	if (tmpfd != -1 && close(tmpfd) == -1 && err == NULL)
203 4788f1ce 2020-03-18 stsp 		err = got_error_from_errno("close");
204 d582f26c 2020-03-18 stsp 	for (i = 0; i < nitems(tmpfiles); i++) {
205 d582f26c 2020-03-18 stsp 		if (tmpfiles[i] != NULL && fclose(tmpfiles[i]) == EOF &&
206 d582f26c 2020-03-18 stsp 		    err == NULL)
207 07965a0d 2021-10-15 stsp 			err = got_error_from_errno("fclose");
208 d582f26c 2020-03-18 stsp 	}
209 668a20f6 2020-03-18 stsp 
210 668a20f6 2020-03-18 stsp 	if (err == NULL)
211 e70bf110 2020-03-22 stsp 		err = send_index_pack_done(&ibuf);
212 668a20f6 2020-03-18 stsp 	if (err) {
213 668a20f6 2020-03-18 stsp 		got_privsep_send_error(&ibuf, err);
214 93658fb9 2020-03-18 stsp 		fprintf(stderr, "%s: %s\n", getprogname(), err->msg);
215 93658fb9 2020-03-18 stsp 		got_privsep_send_error(&ibuf, err);
216 668a20f6 2020-03-18 stsp 		exit(1);
217 93658fb9 2020-03-18 stsp 	}
218 93658fb9 2020-03-18 stsp 
219 93658fb9 2020-03-18 stsp 	exit(0);
220 93658fb9 2020-03-18 stsp }