Annotation of src/usr.bin/ssh/sftp-client.c, Revision 1.117
1.117 ! deraadt 1: /* $OpenBSD: sftp-client.c,v 1.116 2015/01/14 13:54:13 djm Exp $ */
1.1 djm 2: /*
1.46 djm 3: * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
1.1 djm 4: *
1.46 djm 5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
1.1 djm 8: *
1.46 djm 9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 djm 16: */
17:
18: /* XXX: memleaks */
19: /* XXX: signed vs unsigned */
1.23 djm 20: /* XXX: remove all logging, only return status codes */
1.1 djm 21: /* XXX: copy between two remote sites */
22:
1.117 ! deraadt 23: #include <sys/param.h> /* MIN MAX */
1.74 deraadt 24: #include <sys/types.h>
1.93 djm 25: #include <sys/poll.h>
1.21 djm 26: #include <sys/queue.h>
1.60 stevesk 27: #include <sys/stat.h>
1.71 stevesk 28: #include <sys/time.h>
1.82 djm 29: #include <sys/statvfs.h>
1.74 deraadt 30: #include <sys/uio.h>
1.66 stevesk 31:
1.89 djm 32: #include <dirent.h>
1.67 stevesk 33: #include <errno.h>
1.66 stevesk 34: #include <fcntl.h>
1.70 stevesk 35: #include <signal.h>
1.87 dtucker 36: #include <stdarg.h>
1.73 stevesk 37: #include <stdio.h>
1.109 dtucker 38: #include <stdlib.h>
1.69 stevesk 39: #include <string.h>
1.68 stevesk 40: #include <unistd.h>
1.1 djm 41:
1.74 deraadt 42: #include "xmalloc.h"
1.116 djm 43: #include "ssherr.h"
44: #include "sshbuf.h"
1.1 djm 45: #include "log.h"
46: #include "atomicio.h"
1.39 fgsch 47: #include "progressmeter.h"
1.64 djm 48: #include "misc.h"
1.1 djm 49:
50: #include "sftp.h"
51: #include "sftp-common.h"
52: #include "sftp-client.h"
53:
1.49 djm 54: extern volatile sig_atomic_t interrupted;
1.39 fgsch 55: extern int showprogress;
56:
1.59 david 57: /* Minimum amount of data to read at a time */
1.21 djm 58: #define MIN_READ_SIZE 512
59:
1.89 djm 60: /* Maximum depth to descend in directory trees */
61: #define MAX_DIR_DEPTH 64
62:
1.23 djm 63: struct sftp_conn {
64: int fd_in;
65: int fd_out;
66: u_int transfer_buflen;
67: u_int num_requests;
68: u_int version;
69: u_int msg_id;
1.82 djm 70: #define SFTP_EXT_POSIX_RENAME 0x00000001
71: #define SFTP_EXT_STATVFS 0x00000002
72: #define SFTP_EXT_FSTATVFS 0x00000004
1.94 djm 73: #define SFTP_EXT_HARDLINK 0x00000008
1.107 djm 74: #define SFTP_EXT_FSYNC 0x00000010
1.81 djm 75: u_int exts;
1.93 djm 76: u_int64_t limit_kbps;
77: struct bwlimit bwlimit_in, bwlimit_out;
1.23 djm 78: };
1.4 djm 79:
1.116 djm 80: static u_char *
81: get_handle(struct sftp_conn *conn, u_int expected_id, size_t *len,
1.93 djm 82: const char *errfmt, ...) __attribute__((format(printf, 4, 5)));
83:
84: /* ARGSUSED */
85: static int
86: sftpio(void *_bwlimit, size_t amount)
87: {
88: struct bwlimit *bwlimit = (struct bwlimit *)_bwlimit;
89:
90: bandwidth_limit(bwlimit, amount);
91: return 0;
92: }
1.88 djm 93:
1.17 itojun 94: static void
1.116 djm 95: send_msg(struct sftp_conn *conn, struct sshbuf *m)
1.1 djm 96: {
1.40 djm 97: u_char mlen[4];
1.65 djm 98: struct iovec iov[2];
1.40 djm 99:
1.116 djm 100: if (sshbuf_len(m) > SFTP_MAX_MSG_LENGTH)
101: fatal("Outbound message too long %zu", sshbuf_len(m));
1.40 djm 102:
103: /* Send length first */
1.116 djm 104: put_u32(mlen, sshbuf_len(m));
1.65 djm 105: iov[0].iov_base = mlen;
106: iov[0].iov_len = sizeof(mlen);
1.116 djm 107: iov[1].iov_base = (u_char *)sshbuf_ptr(m);
108: iov[1].iov_len = sshbuf_len(m);
1.74 deraadt 109:
1.93 djm 110: if (atomiciov6(writev, conn->fd_out, iov, 2,
1.101 djm 111: conn->limit_kbps > 0 ? sftpio : NULL, &conn->bwlimit_out) !=
1.116 djm 112: sshbuf_len(m) + sizeof(mlen))
1.1 djm 113: fatal("Couldn't send packet: %s", strerror(errno));
114:
1.116 djm 115: sshbuf_reset(m);
1.1 djm 116: }
117:
1.17 itojun 118: static void
1.116 djm 119: get_msg(struct sftp_conn *conn, struct sshbuf *m)
1.1 djm 120: {
1.40 djm 121: u_int msg_len;
1.116 djm 122: u_char *p;
123: int r;
1.1 djm 124:
1.116 djm 125: if ((r = sshbuf_reserve(m, 4, &p)) != 0)
126: fatal("%s: buffer error: %s", __func__, ssh_err(r));
127: if (atomicio6(read, conn->fd_in, p, 4,
1.93 djm 128: conn->limit_kbps > 0 ? sftpio : NULL, &conn->bwlimit_in) != 4) {
1.54 avsm 129: if (errno == EPIPE)
130: fatal("Connection closed");
131: else
132: fatal("Couldn't read packet: %s", strerror(errno));
133: }
1.1 djm 134:
1.116 djm 135: if ((r = sshbuf_get_u32(m, &msg_len)) != 0)
136: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.58 djm 137: if (msg_len > SFTP_MAX_MSG_LENGTH)
1.33 deraadt 138: fatal("Received message too long %u", msg_len);
1.1 djm 139:
1.116 djm 140: if ((r = sshbuf_reserve(m, msg_len, &p)) != 0)
141: fatal("%s: buffer error: %s", __func__, ssh_err(r));
142: if (atomicio6(read, conn->fd_in, p, msg_len,
1.93 djm 143: conn->limit_kbps > 0 ? sftpio : NULL, &conn->bwlimit_in)
144: != msg_len) {
1.54 avsm 145: if (errno == EPIPE)
146: fatal("Connection closed");
147: else
148: fatal("Read packet: %s", strerror(errno));
149: }
1.1 djm 150: }
151:
1.17 itojun 152: static void
1.116 djm 153: send_string_request(struct sftp_conn *conn, u_int id, u_int code, const char *s,
1.1 djm 154: u_int len)
155: {
1.116 djm 156: struct sshbuf *msg;
157: int r;
1.1 djm 158:
1.116 djm 159: if ((msg = sshbuf_new()) == NULL)
160: fatal("%s: sshbuf_new failed", __func__);
161: if ((r = sshbuf_put_u8(msg, code)) != 0 ||
162: (r = sshbuf_put_u32(msg, id)) != 0 ||
163: (r = sshbuf_put_string(msg, s, len)) != 0)
164: fatal("%s: buffer error: %s", __func__, ssh_err(r));
165: send_msg(conn, msg);
1.93 djm 166: debug3("Sent message fd %d T:%u I:%u", conn->fd_out, code, id);
1.116 djm 167: sshbuf_free(msg);
1.1 djm 168: }
169:
1.17 itojun 170: static void
1.93 djm 171: send_string_attrs_request(struct sftp_conn *conn, u_int id, u_int code,
1.116 djm 172: const void *s, u_int len, Attrib *a)
1.1 djm 173: {
1.116 djm 174: struct sshbuf *msg;
175: int r;
1.1 djm 176:
1.116 djm 177: if ((msg = sshbuf_new()) == NULL)
178: fatal("%s: sshbuf_new failed", __func__);
179: if ((r = sshbuf_put_u8(msg, code)) != 0 ||
180: (r = sshbuf_put_u32(msg, id)) != 0 ||
181: (r = sshbuf_put_string(msg, s, len)) != 0 ||
182: (r = encode_attrib(msg, a)) != 0)
183: fatal("%s: buffer error: %s", __func__, ssh_err(r));
184: send_msg(conn, msg);
1.93 djm 185: debug3("Sent message fd %d T:%u I:%u", conn->fd_out, code, id);
1.116 djm 186: sshbuf_free(msg);
1.1 djm 187: }
188:
1.17 itojun 189: static u_int
1.93 djm 190: get_status(struct sftp_conn *conn, u_int expected_id)
1.1 djm 191: {
1.116 djm 192: struct sshbuf *msg;
193: u_char type;
194: u_int id, status;
195: int r;
1.1 djm 196:
1.116 djm 197: if ((msg = sshbuf_new()) == NULL)
198: fatal("%s: sshbuf_new failed", __func__);
199: get_msg(conn, msg);
200: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
201: (r = sshbuf_get_u32(msg, &id)) != 0)
202: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.1 djm 203:
204: if (id != expected_id)
1.33 deraadt 205: fatal("ID mismatch (%u != %u)", id, expected_id);
1.1 djm 206: if (type != SSH2_FXP_STATUS)
1.33 deraadt 207: fatal("Expected SSH2_FXP_STATUS(%u) packet, got %u",
1.1 djm 208: SSH2_FXP_STATUS, type);
209:
1.116 djm 210: if ((r = sshbuf_get_u32(msg, &status)) != 0)
211: fatal("%s: buffer error: %s", __func__, ssh_err(r));
212: sshbuf_free(msg);
1.1 djm 213:
1.33 deraadt 214: debug3("SSH2_FXP_STATUS %u", status);
1.1 djm 215:
1.93 djm 216: return status;
1.1 djm 217: }
218:
1.116 djm 219: static u_char *
220: get_handle(struct sftp_conn *conn, u_int expected_id, size_t *len,
1.93 djm 221: const char *errfmt, ...)
1.1 djm 222: {
1.116 djm 223: struct sshbuf *msg;
224: u_int id, status;
225: u_char type;
226: u_char *handle;
227: char errmsg[256];
1.88 djm 228: va_list args;
1.116 djm 229: int r;
1.88 djm 230:
231: va_start(args, errfmt);
232: if (errfmt != NULL)
233: vsnprintf(errmsg, sizeof(errmsg), errfmt, args);
234: va_end(args);
1.1 djm 235:
1.116 djm 236: if ((msg = sshbuf_new()) == NULL)
237: fatal("%s: sshbuf_new failed", __func__);
238: get_msg(conn, msg);
239: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
240: (r = sshbuf_get_u32(msg, &id)) != 0)
241: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.1 djm 242:
243: if (id != expected_id)
1.88 djm 244: fatal("%s: ID mismatch (%u != %u)",
245: errfmt == NULL ? __func__ : errmsg, id, expected_id);
1.1 djm 246: if (type == SSH2_FXP_STATUS) {
1.116 djm 247: if ((r = sshbuf_get_u32(msg, &status)) != 0)
248: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.88 djm 249: if (errfmt != NULL)
250: error("%s: %s", errmsg, fx2txt(status));
1.116 djm 251: sshbuf_free(msg);
1.1 djm 252: return(NULL);
253: } else if (type != SSH2_FXP_HANDLE)
1.88 djm 254: fatal("%s: Expected SSH2_FXP_HANDLE(%u) packet, got %u",
255: errfmt == NULL ? __func__ : errmsg, SSH2_FXP_HANDLE, type);
1.1 djm 256:
1.116 djm 257: if ((r = sshbuf_get_string(msg, &handle, len)) != 0)
258: fatal("%s: buffer error: %s", __func__, ssh_err(r));
259: sshbuf_free(msg);
1.1 djm 260:
1.116 djm 261: return handle;
1.1 djm 262: }
263:
1.17 itojun 264: static Attrib *
1.93 djm 265: get_decode_stat(struct sftp_conn *conn, u_int expected_id, int quiet)
1.1 djm 266: {
1.116 djm 267: struct sshbuf *msg;
268: u_int id;
269: u_char type;
270: int r;
271: static Attrib a;
272:
273: if ((msg = sshbuf_new()) == NULL)
274: fatal("%s: sshbuf_new failed", __func__);
275: get_msg(conn, msg);
276:
277: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
278: (r = sshbuf_get_u32(msg, &id)) != 0)
279: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.1 djm 280:
1.33 deraadt 281: debug3("Received stat reply T:%u I:%u", type, id);
1.1 djm 282: if (id != expected_id)
1.33 deraadt 283: fatal("ID mismatch (%u != %u)", id, expected_id);
1.1 djm 284: if (type == SSH2_FXP_STATUS) {
1.116 djm 285: u_int status;
1.1 djm 286:
1.116 djm 287: if ((r = sshbuf_get_u32(msg, &status)) != 0)
288: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.14 djm 289: if (quiet)
290: debug("Couldn't stat remote file: %s", fx2txt(status));
291: else
292: error("Couldn't stat remote file: %s", fx2txt(status));
1.116 djm 293: sshbuf_free(msg);
1.1 djm 294: return(NULL);
295: } else if (type != SSH2_FXP_ATTRS) {
1.33 deraadt 296: fatal("Expected SSH2_FXP_ATTRS(%u) packet, got %u",
1.1 djm 297: SSH2_FXP_ATTRS, type);
298: }
1.116 djm 299: if ((r = decode_attrib(msg, &a)) != 0) {
300: error("%s: couldn't decode attrib: %s", __func__, ssh_err(r));
301: sshbuf_free(msg);
302: return NULL;
303: }
304: sshbuf_free(msg);
1.1 djm 305:
1.116 djm 306: return &a;
1.1 djm 307: }
308:
1.82 djm 309: static int
1.93 djm 310: get_decode_statvfs(struct sftp_conn *conn, struct sftp_statvfs *st,
311: u_int expected_id, int quiet)
1.82 djm 312: {
1.116 djm 313: struct sshbuf *msg;
314: u_char type;
315: u_int id;
316: u_int64_t flag;
317: int r;
1.82 djm 318:
1.116 djm 319: if ((msg = sshbuf_new()) == NULL)
320: fatal("%s: sshbuf_new failed", __func__);
321: get_msg(conn, msg);
322:
323: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
324: (r = sshbuf_get_u32(msg, &id)) != 0)
325: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.82 djm 326:
327: debug3("Received statvfs reply T:%u I:%u", type, id);
328: if (id != expected_id)
329: fatal("ID mismatch (%u != %u)", id, expected_id);
330: if (type == SSH2_FXP_STATUS) {
1.116 djm 331: u_int status;
1.82 djm 332:
1.116 djm 333: if ((r = sshbuf_get_u32(msg, &status)) != 0)
334: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.82 djm 335: if (quiet)
336: debug("Couldn't statvfs: %s", fx2txt(status));
337: else
338: error("Couldn't statvfs: %s", fx2txt(status));
1.116 djm 339: sshbuf_free(msg);
1.82 djm 340: return -1;
341: } else if (type != SSH2_FXP_EXTENDED_REPLY) {
342: fatal("Expected SSH2_FXP_EXTENDED_REPLY(%u) packet, got %u",
343: SSH2_FXP_EXTENDED_REPLY, type);
344: }
345:
1.114 tedu 346: memset(st, 0, sizeof(*st));
1.116 djm 347: if ((r = sshbuf_get_u64(msg, &st->f_bsize)) != 0 ||
348: (r = sshbuf_get_u64(msg, &st->f_frsize)) != 0 ||
349: (r = sshbuf_get_u64(msg, &st->f_blocks)) != 0 ||
350: (r = sshbuf_get_u64(msg, &st->f_bfree)) != 0 ||
351: (r = sshbuf_get_u64(msg, &st->f_bavail)) != 0 ||
352: (r = sshbuf_get_u64(msg, &st->f_files)) != 0 ||
353: (r = sshbuf_get_u64(msg, &st->f_ffree)) != 0 ||
354: (r = sshbuf_get_u64(msg, &st->f_favail)) != 0 ||
355: (r = sshbuf_get_u64(msg, &st->f_fsid)) != 0 ||
356: (r = sshbuf_get_u64(msg, &flag)) != 0 ||
357: (r = sshbuf_get_u64(msg, &st->f_namemax)) != 0)
358: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.82 djm 359:
360: st->f_flag = (flag & SSH2_FXE_STATVFS_ST_RDONLY) ? ST_RDONLY : 0;
361: st->f_flag |= (flag & SSH2_FXE_STATVFS_ST_NOSUID) ? ST_NOSUID : 0;
362:
1.116 djm 363: sshbuf_free(msg);
1.82 djm 364:
365: return 0;
366: }
367:
1.23 djm 368: struct sftp_conn *
1.93 djm 369: do_init(int fd_in, int fd_out, u_int transfer_buflen, u_int num_requests,
370: u_int64_t limit_kbps)
1.1 djm 371: {
1.116 djm 372: u_char type;
373: struct sshbuf *msg;
1.23 djm 374: struct sftp_conn *ret;
1.116 djm 375: int r;
1.1 djm 376:
1.103 djm 377: ret = xcalloc(1, sizeof(*ret));
378: ret->msg_id = 1;
1.93 djm 379: ret->fd_in = fd_in;
380: ret->fd_out = fd_out;
381: ret->transfer_buflen = transfer_buflen;
382: ret->num_requests = num_requests;
383: ret->exts = 0;
384: ret->limit_kbps = 0;
385:
1.116 djm 386: if ((msg = sshbuf_new()) == NULL)
387: fatal("%s: sshbuf_new failed", __func__);
388: if ((r = sshbuf_put_u8(msg, SSH2_FXP_INIT)) != 0 ||
389: (r = sshbuf_put_u32(msg, SSH2_FILEXFER_VERSION)) != 0)
390: fatal("%s: buffer error: %s", __func__, ssh_err(r));
391: send_msg(ret, msg);
1.1 djm 392:
1.116 djm 393: sshbuf_reset(msg);
1.1 djm 394:
1.116 djm 395: get_msg(ret, msg);
1.1 djm 396:
1.3 stevesk 397: /* Expecting a VERSION reply */
1.116 djm 398: if ((r = sshbuf_get_u8(msg, &type)) != 0)
399: fatal("%s: buffer error: %s", __func__, ssh_err(r));
400: if (type != SSH2_FXP_VERSION) {
1.33 deraadt 401: error("Invalid packet back from SSH2_FXP_INIT (type %u)",
1.1 djm 402: type);
1.116 djm 403: sshbuf_free(msg);
1.23 djm 404: return(NULL);
1.1 djm 405: }
1.116 djm 406: if ((r = sshbuf_get_u32(msg, &ret->version)) != 0)
407: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.1 djm 408:
1.93 djm 409: debug2("Remote version: %u", ret->version);
1.1 djm 410:
411: /* Check for extensions */
1.116 djm 412: while (sshbuf_len(msg) > 0) {
413: char *name;
414: u_char *value;
415: size_t vlen;
1.85 djm 416: int known = 0;
1.1 djm 417:
1.116 djm 418: if ((r = sshbuf_get_cstring(msg, &name, NULL)) != 0 ||
419: (r = sshbuf_get_string(msg, &value, &vlen)) != 0)
420: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.82 djm 421: if (strcmp(name, "posix-rename@openssh.com") == 0 &&
1.116 djm 422: strcmp((char *)value, "1") == 0) {
1.93 djm 423: ret->exts |= SFTP_EXT_POSIX_RENAME;
1.85 djm 424: known = 1;
425: } else if (strcmp(name, "statvfs@openssh.com") == 0 &&
1.116 djm 426: strcmp((char *)value, "2") == 0) {
1.93 djm 427: ret->exts |= SFTP_EXT_STATVFS;
1.85 djm 428: known = 1;
1.94 djm 429: } else if (strcmp(name, "fstatvfs@openssh.com") == 0 &&
1.116 djm 430: strcmp((char *)value, "2") == 0) {
1.93 djm 431: ret->exts |= SFTP_EXT_FSTATVFS;
1.85 djm 432: known = 1;
1.94 djm 433: } else if (strcmp(name, "hardlink@openssh.com") == 0 &&
1.116 djm 434: strcmp((char *)value, "1") == 0) {
1.94 djm 435: ret->exts |= SFTP_EXT_HARDLINK;
436: known = 1;
1.116 djm 437: } else if (strcmp(name, "fsync@openssh.com") == 0 &&
438: strcmp((char *)value, "1") == 0) {
439: ret->exts |= SFTP_EXT_FSYNC;
440: known = 1;
1.85 djm 441: }
442: if (known) {
443: debug2("Server supports extension \"%s\" revision %s",
444: name, value);
445: } else {
446: debug2("Unrecognised server extension \"%s\"", name);
447: }
1.98 djm 448: free(name);
449: free(value);
1.1 djm 450: }
451:
1.116 djm 452: sshbuf_free(msg);
1.11 djm 453:
1.23 djm 454: /* Some filexfer v.0 servers don't support large packets */
1.93 djm 455: if (ret->version == 0)
1.29 markus 456: ret->transfer_buflen = MIN(ret->transfer_buflen, 20480);
1.23 djm 457:
1.93 djm 458: ret->limit_kbps = limit_kbps;
459: if (ret->limit_kbps > 0) {
460: bandwidth_limit_init(&ret->bwlimit_in, ret->limit_kbps,
461: ret->transfer_buflen);
462: bandwidth_limit_init(&ret->bwlimit_out, ret->limit_kbps,
463: ret->transfer_buflen);
464: }
465:
466: return ret;
1.23 djm 467: }
468:
469: u_int
470: sftp_proto_version(struct sftp_conn *conn)
471: {
1.93 djm 472: return conn->version;
1.1 djm 473: }
474:
475: int
1.116 djm 476: do_close(struct sftp_conn *conn, const u_char *handle, u_int handle_len)
1.1 djm 477: {
478: u_int id, status;
1.116 djm 479: struct sshbuf *msg;
480: int r;
1.1 djm 481:
1.116 djm 482: if ((msg = sshbuf_new()) == NULL)
483: fatal("%s: sshbuf_new failed", __func__);
1.1 djm 484:
1.23 djm 485: id = conn->msg_id++;
1.116 djm 486: if ((r = sshbuf_put_u8(msg, SSH2_FXP_CLOSE)) != 0 ||
487: (r = sshbuf_put_u32(msg, id)) != 0 ||
488: (r = sshbuf_put_string(msg, handle, handle_len)) != 0)
489: fatal("%s: buffer error: %s", __func__, ssh_err(r));
490: send_msg(conn, msg);
1.33 deraadt 491: debug3("Sent message SSH2_FXP_CLOSE I:%u", id);
1.1 djm 492:
1.93 djm 493: status = get_status(conn, id);
1.1 djm 494: if (status != SSH2_FX_OK)
495: error("Couldn't close file: %s", fx2txt(status));
496:
1.116 djm 497: sshbuf_free(msg);
1.1 djm 498:
1.116 djm 499: return status == SSH2_FX_OK ? 0 : -1;
1.1 djm 500: }
501:
1.12 djm 502:
1.17 itojun 503: static int
1.116 djm 504: do_lsreaddir(struct sftp_conn *conn, const char *path, int print_flag,
1.12 djm 505: SFTP_DIRENT ***dir)
1.1 djm 506: {
1.116 djm 507: struct sshbuf *msg;
508: u_int count, id, i, expected_id, ents = 0;
509: size_t handle_len;
510: u_char type;
1.1 djm 511: char *handle;
1.111 djm 512: int status = SSH2_FX_FAILURE;
1.116 djm 513: int r;
1.111 djm 514:
515: if (dir)
516: *dir = NULL;
1.1 djm 517:
1.23 djm 518: id = conn->msg_id++;
1.1 djm 519:
1.116 djm 520: if ((msg = sshbuf_new()) == NULL)
521: fatal("%s: sshbuf_new failed", __func__);
522: if ((r = sshbuf_put_u8(msg, SSH2_FXP_OPENDIR)) != 0 ||
523: (r = sshbuf_put_u32(msg, id)) != 0 ||
524: (r = sshbuf_put_cstring(msg, path)) != 0)
525: fatal("%s: buffer error: %s", __func__, ssh_err(r));
526: send_msg(conn, msg);
1.1 djm 527:
1.93 djm 528: handle = get_handle(conn, id, &handle_len,
1.88 djm 529: "remote readdir(\"%s\")", path);
1.96 markus 530: if (handle == NULL) {
1.116 djm 531: sshbuf_free(msg);
1.93 djm 532: return -1;
1.96 markus 533: }
1.1 djm 534:
1.12 djm 535: if (dir) {
536: ents = 0;
1.108 djm 537: *dir = xcalloc(1, sizeof(**dir));
1.12 djm 538: (*dir)[0] = NULL;
539: }
540:
1.49 djm 541: for (; !interrupted;) {
1.23 djm 542: id = expected_id = conn->msg_id++;
1.1 djm 543:
1.33 deraadt 544: debug3("Sending SSH2_FXP_READDIR I:%u", id);
1.1 djm 545:
1.116 djm 546: sshbuf_reset(msg);
547: if ((r = sshbuf_put_u8(msg, SSH2_FXP_READDIR)) != 0 ||
548: (r = sshbuf_put_u32(msg, id)) != 0 ||
549: (r = sshbuf_put_string(msg, handle, handle_len)) != 0)
550: fatal("%s: buffer error: %s", __func__, ssh_err(r));
551: send_msg(conn, msg);
552:
553: sshbuf_reset(msg);
554:
555: get_msg(conn, msg);
556:
557: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
558: (r = sshbuf_get_u32(msg, &id)) != 0)
559: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.1 djm 560:
1.33 deraadt 561: debug3("Received reply T:%u I:%u", type, id);
1.1 djm 562:
563: if (id != expected_id)
1.33 deraadt 564: fatal("ID mismatch (%u != %u)", id, expected_id);
1.1 djm 565:
566: if (type == SSH2_FXP_STATUS) {
1.116 djm 567: u_int rstatus;
568:
569: if ((r = sshbuf_get_u32(msg, &rstatus)) != 0)
570: fatal("%s: buffer error: %s",
571: __func__, ssh_err(r));
572: debug3("Received SSH2_FXP_STATUS %d", rstatus);
573: if (rstatus == SSH2_FX_EOF)
1.1 djm 574: break;
1.116 djm 575: error("Couldn't read directory: %s", fx2txt(rstatus));
1.111 djm 576: goto out;
1.1 djm 577: } else if (type != SSH2_FXP_NAME)
1.33 deraadt 578: fatal("Expected SSH2_FXP_NAME(%u) packet, got %u",
1.1 djm 579: SSH2_FXP_NAME, type);
580:
1.116 djm 581: if ((r = sshbuf_get_u32(msg, &count)) != 0)
582: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.7 markus 583: if (count == 0)
584: break;
1.8 stevesk 585: debug3("Received %d SSH2_FXP_NAME responses", count);
1.19 deraadt 586: for (i = 0; i < count; i++) {
1.1 djm 587: char *filename, *longname;
1.116 djm 588: Attrib a;
1.1 djm 589:
1.116 djm 590: if ((r = sshbuf_get_cstring(msg, &filename,
591: NULL)) != 0 ||
592: (r = sshbuf_get_cstring(msg, &longname,
593: NULL)) != 0)
594: fatal("%s: buffer error: %s",
595: __func__, ssh_err(r));
596: if ((r = decode_attrib(msg, &a)) != 0) {
597: error("%s: couldn't decode attrib: %s",
598: __func__, ssh_err(r));
599: free(filename);
600: free(longname);
601: sshbuf_free(msg);
602: return -1;
603: }
1.1 djm 604:
1.105 djm 605: if (print_flag)
1.12 djm 606: printf("%s\n", longname);
607:
1.89 djm 608: /*
609: * Directory entries should never contain '/'
610: * These can be used to attack recursive ops
611: * (e.g. send '../../../../etc/passwd')
612: */
613: if (strchr(filename, '/') != NULL) {
614: error("Server sent suspect path \"%s\" "
615: "during readdir of \"%s\"", filename, path);
1.111 djm 616: } else if (dir) {
1.62 djm 617: *dir = xrealloc(*dir, ents + 2, sizeof(**dir));
1.108 djm 618: (*dir)[ents] = xcalloc(1, sizeof(***dir));
1.12 djm 619: (*dir)[ents]->filename = xstrdup(filename);
620: (*dir)[ents]->longname = xstrdup(longname);
1.116 djm 621: memcpy(&(*dir)[ents]->a, &a, sizeof(a));
1.12 djm 622: (*dir)[++ents] = NULL;
623: }
1.98 djm 624: free(filename);
625: free(longname);
1.1 djm 626: }
627: }
1.111 djm 628: status = 0;
1.1 djm 629:
1.111 djm 630: out:
1.116 djm 631: sshbuf_free(msg);
1.23 djm 632: do_close(conn, handle, handle_len);
1.98 djm 633: free(handle);
1.1 djm 634:
1.111 djm 635: if (status != 0 && dir != NULL) {
636: /* Don't return results on error */
637: free_sftp_dirents(*dir);
638: *dir = NULL;
639: } else if (interrupted && dir != NULL && *dir != NULL) {
640: /* Don't return partial matches on interrupt */
1.49 djm 641: free_sftp_dirents(*dir);
1.108 djm 642: *dir = xcalloc(1, sizeof(**dir));
1.49 djm 643: **dir = NULL;
644: }
645:
1.111 djm 646: return status;
1.12 djm 647: }
648:
649: int
1.116 djm 650: do_readdir(struct sftp_conn *conn, const char *path, SFTP_DIRENT ***dir)
1.12 djm 651: {
1.23 djm 652: return(do_lsreaddir(conn, path, 0, dir));
1.12 djm 653: }
654:
655: void free_sftp_dirents(SFTP_DIRENT **s)
656: {
657: int i;
1.19 deraadt 658:
1.111 djm 659: if (s == NULL)
660: return;
1.19 deraadt 661: for (i = 0; s[i]; i++) {
1.98 djm 662: free(s[i]->filename);
663: free(s[i]->longname);
664: free(s[i]);
1.12 djm 665: }
1.98 djm 666: free(s);
1.12 djm 667: }
668:
669: int
1.116 djm 670: do_rm(struct sftp_conn *conn, const char *path)
1.1 djm 671: {
672: u_int status, id;
673:
674: debug2("Sending SSH2_FXP_REMOVE \"%s\"", path);
675:
1.23 djm 676: id = conn->msg_id++;
1.93 djm 677: send_string_request(conn, id, SSH2_FXP_REMOVE, path, strlen(path));
678: status = get_status(conn, id);
1.1 djm 679: if (status != SSH2_FX_OK)
680: error("Couldn't delete file: %s", fx2txt(status));
1.116 djm 681: return status == SSH2_FX_OK ? 0 : -1;
1.1 djm 682: }
683:
684: int
1.116 djm 685: do_mkdir(struct sftp_conn *conn, const char *path, Attrib *a, int print_flag)
1.1 djm 686: {
687: u_int status, id;
688:
1.23 djm 689: id = conn->msg_id++;
1.93 djm 690: send_string_attrs_request(conn, id, SSH2_FXP_MKDIR, path,
1.1 djm 691: strlen(path), a);
692:
1.93 djm 693: status = get_status(conn, id);
1.105 djm 694: if (status != SSH2_FX_OK && print_flag)
1.1 djm 695: error("Couldn't create directory: %s", fx2txt(status));
696:
1.116 djm 697: return status == SSH2_FX_OK ? 0 : -1;
1.1 djm 698: }
699:
700: int
1.116 djm 701: do_rmdir(struct sftp_conn *conn, const char *path)
1.1 djm 702: {
703: u_int status, id;
704:
1.23 djm 705: id = conn->msg_id++;
1.93 djm 706: send_string_request(conn, id, SSH2_FXP_RMDIR, path,
1.23 djm 707: strlen(path));
1.1 djm 708:
1.93 djm 709: status = get_status(conn, id);
1.1 djm 710: if (status != SSH2_FX_OK)
711: error("Couldn't remove directory: %s", fx2txt(status));
712:
1.116 djm 713: return status == SSH2_FX_OK ? 0 : -1;
1.1 djm 714: }
715:
716: Attrib *
1.116 djm 717: do_stat(struct sftp_conn *conn, const char *path, int quiet)
1.1 djm 718: {
719: u_int id;
720:
1.23 djm 721: id = conn->msg_id++;
722:
1.93 djm 723: send_string_request(conn, id,
1.28 markus 724: conn->version == 0 ? SSH2_FXP_STAT_VERSION_0 : SSH2_FXP_STAT,
1.23 djm 725: path, strlen(path));
726:
1.93 djm 727: return(get_decode_stat(conn, id, quiet));
1.1 djm 728: }
729:
730: Attrib *
1.116 djm 731: do_lstat(struct sftp_conn *conn, const char *path, int quiet)
1.1 djm 732: {
733: u_int id;
734:
1.23 djm 735: if (conn->version == 0) {
736: if (quiet)
737: debug("Server version does not support lstat operation");
738: else
1.43 itojun 739: logit("Server version does not support lstat operation");
1.30 markus 740: return(do_stat(conn, path, quiet));
1.23 djm 741: }
742:
743: id = conn->msg_id++;
1.93 djm 744: send_string_request(conn, id, SSH2_FXP_LSTAT, path,
1.23 djm 745: strlen(path));
746:
1.93 djm 747: return(get_decode_stat(conn, id, quiet));
1.1 djm 748: }
749:
1.78 chl 750: #ifdef notyet
1.1 djm 751: Attrib *
1.116 djm 752: do_fstat(struct sftp_conn *conn, const u_char *handle, u_int handle_len,
753: int quiet)
1.1 djm 754: {
755: u_int id;
756:
1.23 djm 757: id = conn->msg_id++;
1.93 djm 758: send_string_request(conn, id, SSH2_FXP_FSTAT, handle,
1.23 djm 759: handle_len);
760:
1.93 djm 761: return(get_decode_stat(conn, id, quiet));
1.1 djm 762: }
1.78 chl 763: #endif
1.1 djm 764:
765: int
1.116 djm 766: do_setstat(struct sftp_conn *conn, const char *path, Attrib *a)
1.1 djm 767: {
768: u_int status, id;
769:
1.23 djm 770: id = conn->msg_id++;
1.93 djm 771: send_string_attrs_request(conn, id, SSH2_FXP_SETSTAT, path,
1.1 djm 772: strlen(path), a);
773:
1.93 djm 774: status = get_status(conn, id);
1.1 djm 775: if (status != SSH2_FX_OK)
776: error("Couldn't setstat on \"%s\": %s", path,
777: fx2txt(status));
778:
1.116 djm 779: return status == SSH2_FX_OK ? 0 : -1;
1.1 djm 780: }
781:
782: int
1.116 djm 783: do_fsetstat(struct sftp_conn *conn, const u_char *handle, u_int handle_len,
1.1 djm 784: Attrib *a)
785: {
786: u_int status, id;
787:
1.23 djm 788: id = conn->msg_id++;
1.93 djm 789: send_string_attrs_request(conn, id, SSH2_FXP_FSETSTAT, handle,
1.1 djm 790: handle_len, a);
791:
1.93 djm 792: status = get_status(conn, id);
1.1 djm 793: if (status != SSH2_FX_OK)
794: error("Couldn't fsetstat: %s", fx2txt(status));
795:
1.116 djm 796: return status == SSH2_FX_OK ? 0 : -1;
1.1 djm 797: }
798:
799: char *
1.116 djm 800: do_realpath(struct sftp_conn *conn, const char *path)
1.1 djm 801: {
1.116 djm 802: struct sshbuf *msg;
803: u_int expected_id, count, id;
1.1 djm 804: char *filename, *longname;
1.116 djm 805: Attrib a;
806: u_char type;
807: int r;
1.1 djm 808:
1.23 djm 809: expected_id = id = conn->msg_id++;
1.93 djm 810: send_string_request(conn, id, SSH2_FXP_REALPATH, path,
1.23 djm 811: strlen(path));
1.1 djm 812:
1.116 djm 813: if ((msg = sshbuf_new()) == NULL)
814: fatal("%s: sshbuf_new failed", __func__);
1.1 djm 815:
1.116 djm 816: get_msg(conn, msg);
817: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
818: (r = sshbuf_get_u32(msg, &id)) != 0)
819: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.1 djm 820:
821: if (id != expected_id)
1.33 deraadt 822: fatal("ID mismatch (%u != %u)", id, expected_id);
1.1 djm 823:
824: if (type == SSH2_FXP_STATUS) {
1.116 djm 825: u_int status;
1.1 djm 826:
1.116 djm 827: if ((r = sshbuf_get_u32(msg, &status)) != 0)
828: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.107 djm 829: error("Couldn't canonicalize: %s", fx2txt(status));
1.116 djm 830: sshbuf_free(msg);
1.91 djm 831: return NULL;
1.1 djm 832: } else if (type != SSH2_FXP_NAME)
1.33 deraadt 833: fatal("Expected SSH2_FXP_NAME(%u) packet, got %u",
1.1 djm 834: SSH2_FXP_NAME, type);
835:
1.116 djm 836: if ((r = sshbuf_get_u32(msg, &count)) != 0)
837: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.1 djm 838: if (count != 1)
839: fatal("Got multiple names (%d) from SSH_FXP_REALPATH", count);
840:
1.116 djm 841: if ((r = sshbuf_get_cstring(msg, &filename, NULL)) != 0 ||
842: (r = sshbuf_get_cstring(msg, &longname, NULL)) != 0 ||
843: (r = decode_attrib(msg, &a)) != 0)
844: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.1 djm 845:
1.97 dtucker 846: debug3("SSH_FXP_REALPATH %s -> %s size %lu", path, filename,
1.116 djm 847: (unsigned long)a.size);
1.1 djm 848:
1.98 djm 849: free(longname);
1.1 djm 850:
1.116 djm 851: sshbuf_free(msg);
1.1 djm 852:
853: return(filename);
854: }
855:
856: int
1.116 djm 857: do_rename(struct sftp_conn *conn, const char *oldpath, const char *newpath,
1.102 djm 858: int force_legacy)
1.1 djm 859: {
1.116 djm 860: struct sshbuf *msg;
1.1 djm 861: u_int status, id;
1.116 djm 862: int r, use_ext = (conn->exts & SFTP_EXT_POSIX_RENAME) && !force_legacy;
1.1 djm 863:
1.116 djm 864: if ((msg = sshbuf_new()) == NULL)
865: fatal("%s: sshbuf_new failed", __func__);
1.1 djm 866:
867: /* Send rename request */
1.23 djm 868: id = conn->msg_id++;
1.102 djm 869: if (use_ext) {
1.116 djm 870: if ((r = sshbuf_put_u8(msg, SSH2_FXP_EXTENDED)) != 0 ||
871: (r = sshbuf_put_u32(msg, id)) != 0 ||
872: (r = sshbuf_put_cstring(msg,
873: "posix-rename@openssh.com")) != 0)
874: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.81 djm 875: } else {
1.116 djm 876: if ((r = sshbuf_put_u8(msg, SSH2_FXP_RENAME)) != 0 ||
877: (r = sshbuf_put_u32(msg, id)) != 0)
878: fatal("%s: buffer error: %s", __func__, ssh_err(r));
879: }
880: if ((r = sshbuf_put_cstring(msg, oldpath)) != 0 ||
881: (r = sshbuf_put_cstring(msg, newpath)) != 0)
882: fatal("%s: buffer error: %s", __func__, ssh_err(r));
883: send_msg(conn, msg);
1.81 djm 884: debug3("Sent message %s \"%s\" -> \"%s\"",
1.116 djm 885: use_ext ? "posix-rename@openssh.com" :
886: "SSH2_FXP_RENAME", oldpath, newpath);
887: sshbuf_free(msg);
1.1 djm 888:
1.93 djm 889: status = get_status(conn, id);
1.1 djm 890: if (status != SSH2_FX_OK)
1.23 djm 891: error("Couldn't rename file \"%s\" to \"%s\": %s", oldpath,
1.94 djm 892: newpath, fx2txt(status));
893:
1.116 djm 894: return status == SSH2_FX_OK ? 0 : -1;
1.94 djm 895: }
896:
897: int
1.116 djm 898: do_hardlink(struct sftp_conn *conn, const char *oldpath, const char *newpath)
1.94 djm 899: {
1.116 djm 900: struct sshbuf *msg;
1.94 djm 901: u_int status, id;
1.116 djm 902: int r;
1.94 djm 903:
904: if ((conn->exts & SFTP_EXT_HARDLINK) == 0) {
905: error("Server does not support hardlink@openssh.com extension");
906: return -1;
907: }
908:
1.116 djm 909: if ((msg = sshbuf_new()) == NULL)
910: fatal("%s: sshbuf_new failed", __func__);
1.95 markus 911:
912: /* Send link request */
913: id = conn->msg_id++;
1.116 djm 914: if ((r = sshbuf_put_u8(msg, SSH2_FXP_EXTENDED)) != 0 ||
915: (r = sshbuf_put_u32(msg, id)) != 0 ||
916: (r = sshbuf_put_cstring(msg, "hardlink@openssh.com")) != 0 ||
917: (r = sshbuf_put_cstring(msg, oldpath)) != 0 ||
918: (r = sshbuf_put_cstring(msg, newpath)) != 0)
919: fatal("%s: buffer error: %s", __func__, ssh_err(r));
920: send_msg(conn, msg);
1.94 djm 921: debug3("Sent message hardlink@openssh.com \"%s\" -> \"%s\"",
922: oldpath, newpath);
1.116 djm 923: sshbuf_free(msg);
1.94 djm 924:
925: status = get_status(conn, id);
926: if (status != SSH2_FX_OK)
927: error("Couldn't link file \"%s\" to \"%s\": %s", oldpath,
1.23 djm 928: newpath, fx2txt(status));
1.1 djm 929:
1.116 djm 930: return status == SSH2_FX_OK ? 0 : -1;
1.11 djm 931: }
932:
933: int
1.116 djm 934: do_symlink(struct sftp_conn *conn, const char *oldpath, const char *newpath)
1.11 djm 935: {
1.116 djm 936: struct sshbuf *msg;
1.11 djm 937: u_int status, id;
1.116 djm 938: int r;
1.11 djm 939:
1.23 djm 940: if (conn->version < 3) {
941: error("This server does not support the symlink operation");
942: return(SSH2_FX_OP_UNSUPPORTED);
943: }
944:
1.116 djm 945: if ((msg = sshbuf_new()) == NULL)
946: fatal("%s: sshbuf_new failed", __func__);
1.11 djm 947:
1.48 djm 948: /* Send symlink request */
1.23 djm 949: id = conn->msg_id++;
1.116 djm 950: if ((r = sshbuf_put_u8(msg, SSH2_FXP_SYMLINK)) != 0 ||
951: (r = sshbuf_put_u32(msg, id)) != 0 ||
952: (r = sshbuf_put_cstring(msg, oldpath)) != 0 ||
953: (r = sshbuf_put_cstring(msg, newpath)) != 0)
954: fatal("%s: buffer error: %s", __func__, ssh_err(r));
955: send_msg(conn, msg);
1.11 djm 956: debug3("Sent message SSH2_FXP_SYMLINK \"%s\" -> \"%s\"", oldpath,
957: newpath);
1.116 djm 958: sshbuf_free(msg);
1.11 djm 959:
1.93 djm 960: status = get_status(conn, id);
1.11 djm 961: if (status != SSH2_FX_OK)
1.36 markus 962: error("Couldn't symlink file \"%s\" to \"%s\": %s", oldpath,
1.23 djm 963: newpath, fx2txt(status));
1.11 djm 964:
1.116 djm 965: return status == SSH2_FX_OK ? 0 : -1;
1.11 djm 966: }
967:
1.107 djm 968: int
1.116 djm 969: do_fsync(struct sftp_conn *conn, u_char *handle, u_int handle_len)
1.107 djm 970: {
1.116 djm 971: struct sshbuf *msg;
1.107 djm 972: u_int status, id;
1.116 djm 973: int r;
1.107 djm 974:
975: /* Silently return if the extension is not supported */
976: if ((conn->exts & SFTP_EXT_FSYNC) == 0)
977: return -1;
978:
979: /* Send fsync request */
1.116 djm 980: if ((msg = sshbuf_new()) == NULL)
981: fatal("%s: sshbuf_new failed", __func__);
1.107 djm 982: id = conn->msg_id++;
1.116 djm 983: if ((r = sshbuf_put_u8(msg, SSH2_FXP_EXTENDED)) != 0 ||
984: (r = sshbuf_put_u32(msg, id)) != 0 ||
985: (r = sshbuf_put_cstring(msg, "fsync@openssh.com")) != 0 ||
986: (r = sshbuf_put_string(msg, handle, handle_len)) != 0)
987: fatal("%s: buffer error: %s", __func__, ssh_err(r));
988: send_msg(conn, msg);
1.107 djm 989: debug3("Sent message fsync@openssh.com I:%u", id);
1.116 djm 990: sshbuf_free(msg);
1.107 djm 991:
992: status = get_status(conn, id);
993: if (status != SSH2_FX_OK)
994: error("Couldn't sync file: %s", fx2txt(status));
995:
996: return status;
997: }
998:
1.78 chl 999: #ifdef notyet
1.11 djm 1000: char *
1.116 djm 1001: do_readlink(struct sftp_conn *conn, const char *path)
1.11 djm 1002: {
1.116 djm 1003: struct sshbuf *msg;
1004: u_int expected_id, count, id;
1.11 djm 1005: char *filename, *longname;
1.116 djm 1006: Attrib a;
1007: u_char type;
1008: int r;
1.11 djm 1009:
1.23 djm 1010: expected_id = id = conn->msg_id++;
1.93 djm 1011: send_string_request(conn, id, SSH2_FXP_READLINK, path, strlen(path));
1.11 djm 1012:
1.116 djm 1013: if ((msg = sshbuf_new()) == NULL)
1014: fatal("%s: sshbuf_new failed", __func__);
1.11 djm 1015:
1.116 djm 1016: get_msg(conn, msg);
1017: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
1018: (r = sshbuf_get_u32(msg, &id)) != 0)
1019: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.11 djm 1020:
1021: if (id != expected_id)
1.33 deraadt 1022: fatal("ID mismatch (%u != %u)", id, expected_id);
1.11 djm 1023:
1024: if (type == SSH2_FXP_STATUS) {
1.116 djm 1025: u_int status;
1.11 djm 1026:
1.116 djm 1027: if ((r = sshbuf_get_u32(msg, &status)) != 0)
1028: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.11 djm 1029: error("Couldn't readlink: %s", fx2txt(status));
1.116 djm 1030: sshbuf_free(msg);
1.11 djm 1031: return(NULL);
1032: } else if (type != SSH2_FXP_NAME)
1.33 deraadt 1033: fatal("Expected SSH2_FXP_NAME(%u) packet, got %u",
1.11 djm 1034: SSH2_FXP_NAME, type);
1035:
1.116 djm 1036: if ((r = sshbuf_get_u32(msg, &count)) != 0)
1037: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.11 djm 1038: if (count != 1)
1039: fatal("Got multiple names (%d) from SSH_FXP_READLINK", count);
1040:
1.116 djm 1041: if ((r = sshbuf_get_cstring(msg, &filename, NULL)) != 0 ||
1042: (r = sshbuf_get_cstring(msg, &longname, NULL)) != 0 ||
1043: (r = decode_attrib(msg, &a)) != 0)
1044: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.11 djm 1045:
1046: debug3("SSH_FXP_READLINK %s -> %s", path, filename);
1047:
1.98 djm 1048: free(longname);
1.11 djm 1049:
1.116 djm 1050: sshbuf_free(msg);
1.11 djm 1051:
1.116 djm 1052: return filename;
1.82 djm 1053: }
1054: #endif
1055:
1056: int
1.84 dtucker 1057: do_statvfs(struct sftp_conn *conn, const char *path, struct sftp_statvfs *st,
1.82 djm 1058: int quiet)
1059: {
1.116 djm 1060: struct sshbuf *msg;
1.82 djm 1061: u_int id;
1.116 djm 1062: int r;
1.82 djm 1063:
1064: if ((conn->exts & SFTP_EXT_STATVFS) == 0) {
1065: error("Server does not support statvfs@openssh.com extension");
1066: return -1;
1067: }
1068:
1069: id = conn->msg_id++;
1070:
1.116 djm 1071: if ((msg = sshbuf_new()) == NULL)
1072: fatal("%s: sshbuf_new failed", __func__);
1073: sshbuf_reset(msg);
1074: if ((r = sshbuf_put_u8(msg, SSH2_FXP_EXTENDED)) != 0 ||
1075: (r = sshbuf_put_u32(msg, id)) != 0 ||
1076: (r = sshbuf_put_cstring(msg, "statvfs@openssh.com")) != 0 ||
1077: (r = sshbuf_put_cstring(msg, path)) != 0)
1078: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1079: send_msg(conn, msg);
1080: sshbuf_free(msg);
1.82 djm 1081:
1.93 djm 1082: return get_decode_statvfs(conn, st, id, quiet);
1.82 djm 1083: }
1084:
1085: #ifdef notyet
1086: int
1.116 djm 1087: do_fstatvfs(struct sftp_conn *conn, const u_char *handle, u_int handle_len,
1.84 dtucker 1088: struct sftp_statvfs *st, int quiet)
1.82 djm 1089: {
1.116 djm 1090: struct sshbuf *msg;
1.82 djm 1091: u_int id;
1092:
1093: if ((conn->exts & SFTP_EXT_FSTATVFS) == 0) {
1094: error("Server does not support fstatvfs@openssh.com extension");
1095: return -1;
1096: }
1097:
1098: id = conn->msg_id++;
1099:
1.116 djm 1100: if ((msg = sshbuf_new()) == NULL)
1101: fatal("%s: sshbuf_new failed", __func__);
1102: sshbuf_reset(msg);
1103: if ((r = sshbuf_put_u8(msg, SSH2_FXP_EXTENDED)) != 0 ||
1104: (r = sshbuf_put_u32(msg, id)) != 0 ||
1105: (r = sshbuf_put_cstring(msg, "fstatvfs@openssh.com")) != 0 ||
1106: (r = sshbuf_put_string(msg, handle, handle_len)) != 0)
1107: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1108: send_msg(conn, msg);
1109: sshbuf_free(msg);
1.82 djm 1110:
1.93 djm 1111: return get_decode_statvfs(conn, st, id, quiet);
1.1 djm 1112: }
1.78 chl 1113: #endif
1.1 djm 1114:
1.21 djm 1115: static void
1.93 djm 1116: send_read_request(struct sftp_conn *conn, u_int id, u_int64_t offset,
1.116 djm 1117: u_int len, const u_char *handle, u_int handle_len)
1.21 djm 1118: {
1.116 djm 1119: struct sshbuf *msg;
1120: int r;
1.28 markus 1121:
1.116 djm 1122: if ((msg = sshbuf_new()) == NULL)
1123: fatal("%s: sshbuf_new failed", __func__);
1124: sshbuf_reset(msg);
1125: if ((r = sshbuf_put_u8(msg, SSH2_FXP_READ)) != 0 ||
1126: (r = sshbuf_put_u32(msg, id)) != 0 ||
1127: (r = sshbuf_put_string(msg, handle, handle_len)) != 0 ||
1128: (r = sshbuf_put_u64(msg, offset)) != 0 ||
1129: (r = sshbuf_put_u32(msg, len)) != 0)
1130: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1131: send_msg(conn, msg);
1132: sshbuf_free(msg);
1.28 markus 1133: }
1.21 djm 1134:
1.1 djm 1135: int
1.116 djm 1136: do_download(struct sftp_conn *conn, const char *remote_path,
1137: const char *local_path, Attrib *a, int preserve_flag, int resume_flag,
1138: int fsync_flag)
1.1 djm 1139: {
1.89 djm 1140: Attrib junk;
1.116 djm 1141: struct sshbuf *msg;
1142: u_char *handle;
1143: int local_fd = -1, write_error;
1144: int read_error, write_errno, reordered = 0, r;
1.101 djm 1145: u_int64_t offset = 0, size, highwater;
1.116 djm 1146: u_int mode, id, buflen, num_req, max_req, status = SSH2_FX_OK;
1.39 fgsch 1147: off_t progress_counter;
1.116 djm 1148: size_t handle_len;
1.101 djm 1149: struct stat st;
1.21 djm 1150: struct request {
1151: u_int id;
1.116 djm 1152: size_t len;
1.21 djm 1153: u_int64_t offset;
1.28 markus 1154: TAILQ_ENTRY(request) tq;
1.21 djm 1155: };
1156: TAILQ_HEAD(reqhead, request) requests;
1157: struct request *req;
1.116 djm 1158: u_char type;
1.21 djm 1159:
1160: TAILQ_INIT(&requests);
1.1 djm 1161:
1.89 djm 1162: if (a == NULL && (a = do_stat(conn, remote_path, 0)) == NULL)
1163: return -1;
1.1 djm 1164:
1.86 djm 1165: /* Do not preserve set[ug]id here, as we do not preserve ownership */
1.1 djm 1166: if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
1.38 djm 1167: mode = a->perm & 0777;
1.1 djm 1168: else
1169: mode = 0666;
1170:
1.14 djm 1171: if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
1.41 djm 1172: (!S_ISREG(a->perm))) {
1173: error("Cannot download non-regular file: %s", remote_path);
1.14 djm 1174: return(-1);
1175: }
1176:
1.21 djm 1177: if (a->flags & SSH2_FILEXFER_ATTR_SIZE)
1178: size = a->size;
1179: else
1180: size = 0;
1181:
1.23 djm 1182: buflen = conn->transfer_buflen;
1.116 djm 1183: if ((msg = sshbuf_new()) == NULL)
1184: fatal("%s: sshbuf_new failed", __func__);
1185:
1186: attrib_clear(&junk); /* Send empty attributes */
1.1 djm 1187:
1188: /* Send open request */
1.23 djm 1189: id = conn->msg_id++;
1.116 djm 1190: if ((r = sshbuf_put_u8(msg, SSH2_FXP_OPEN)) != 0 ||
1191: (r = sshbuf_put_u32(msg, id)) != 0 ||
1192: (r = sshbuf_put_cstring(msg, remote_path)) != 0 ||
1193: (r = sshbuf_put_u32(msg, SSH2_FXF_READ)) != 0 ||
1194: (r = encode_attrib(msg, &junk)) != 0)
1195: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1196: send_msg(conn, msg);
1.33 deraadt 1197: debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path);
1.1 djm 1198:
1.93 djm 1199: handle = get_handle(conn, id, &handle_len,
1.88 djm 1200: "remote open(\"%s\")", remote_path);
1.1 djm 1201: if (handle == NULL) {
1.116 djm 1202: sshbuf_free(msg);
1.1 djm 1203: return(-1);
1204: }
1205:
1.105 djm 1206: local_fd = open(local_path,
1207: O_WRONLY | O_CREAT | (resume_flag ? 0 : O_TRUNC), mode | S_IWUSR);
1.23 djm 1208: if (local_fd == -1) {
1209: error("Couldn't open local file \"%s\" for writing: %s",
1210: local_path, strerror(errno));
1.101 djm 1211: goto fail;
1212: }
1213: offset = highwater = 0;
1.105 djm 1214: if (resume_flag) {
1.101 djm 1215: if (fstat(local_fd, &st) == -1) {
1216: error("Unable to stat local file \"%s\": %s",
1217: local_path, strerror(errno));
1218: goto fail;
1219: }
1.113 djm 1220: if (st.st_size < 0) {
1221: error("\"%s\" has negative size", local_path);
1222: goto fail;
1223: }
1224: if ((u_int64_t)st.st_size > size) {
1.101 djm 1225: error("Unable to resume download of \"%s\": "
1226: "local file is larger than remote", local_path);
1227: fail:
1228: do_close(conn, handle, handle_len);
1.116 djm 1229: sshbuf_free(msg);
1.101 djm 1230: free(handle);
1.110 djm 1231: if (local_fd != -1)
1232: close(local_fd);
1.101 djm 1233: return -1;
1234: }
1235: offset = highwater = st.st_size;
1.23 djm 1236: }
1237:
1.1 djm 1238: /* Read from remote and write to local */
1.101 djm 1239: write_error = read_error = write_errno = num_req = 0;
1.21 djm 1240: max_req = 1;
1.101 djm 1241: progress_counter = offset;
1.39 fgsch 1242:
1.47 djm 1243: if (showprogress && size != 0)
1244: start_progress_meter(remote_path, size, &progress_counter);
1.39 fgsch 1245:
1.21 djm 1246: while (num_req > 0 || max_req > 0) {
1.116 djm 1247: u_char *data;
1248: size_t len;
1.1 djm 1249:
1.49 djm 1250: /*
1.51 deraadt 1251: * Simulate EOF on interrupt: stop sending new requests and
1.49 djm 1252: * allow outstanding requests to drain gracefully
1253: */
1254: if (interrupted) {
1255: if (num_req == 0) /* If we haven't started yet... */
1256: break;
1257: max_req = 0;
1258: }
1259:
1.21 djm 1260: /* Send some more requests */
1261: while (num_req < max_req) {
1.28 markus 1262: debug3("Request range %llu -> %llu (%d/%d)",
1.25 itojun 1263: (unsigned long long)offset,
1264: (unsigned long long)offset + buflen - 1,
1265: num_req, max_req);
1.108 djm 1266: req = xcalloc(1, sizeof(*req));
1.23 djm 1267: req->id = conn->msg_id++;
1.21 djm 1268: req->len = buflen;
1269: req->offset = offset;
1270: offset += buflen;
1271: num_req++;
1272: TAILQ_INSERT_TAIL(&requests, req, tq);
1.93 djm 1273: send_read_request(conn, req->id, req->offset,
1.21 djm 1274: req->len, handle, handle_len);
1275: }
1.1 djm 1276:
1.116 djm 1277: sshbuf_reset(msg);
1278: get_msg(conn, msg);
1279: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
1280: (r = sshbuf_get_u32(msg, &id)) != 0)
1281: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.33 deraadt 1282: debug3("Received reply T:%u I:%u R:%d", type, id, max_req);
1.21 djm 1283:
1284: /* Find the request in our queue */
1.53 deraadt 1285: for (req = TAILQ_FIRST(&requests);
1.21 djm 1286: req != NULL && req->id != id;
1287: req = TAILQ_NEXT(req, tq))
1288: ;
1289: if (req == NULL)
1290: fatal("Unexpected reply %u", id);
1291:
1292: switch (type) {
1293: case SSH2_FXP_STATUS:
1.116 djm 1294: if ((r = sshbuf_get_u32(msg, &status)) != 0)
1295: fatal("%s: buffer error: %s",
1296: __func__, ssh_err(r));
1.21 djm 1297: if (status != SSH2_FX_EOF)
1298: read_error = 1;
1299: max_req = 0;
1300: TAILQ_REMOVE(&requests, req, tq);
1.98 djm 1301: free(req);
1.21 djm 1302: num_req--;
1303: break;
1304: case SSH2_FXP_DATA:
1.116 djm 1305: if ((r = sshbuf_get_string(msg, &data, &len)) != 0)
1306: fatal("%s: buffer error: %s",
1307: __func__, ssh_err(r));
1.26 itojun 1308: debug3("Received data %llu -> %llu",
1.28 markus 1309: (unsigned long long)req->offset,
1.26 itojun 1310: (unsigned long long)req->offset + len - 1);
1.21 djm 1311: if (len > req->len)
1312: fatal("Received more data than asked for "
1.116 djm 1313: "%zu > %zu", len, req->len);
1.21 djm 1314: if ((lseek(local_fd, req->offset, SEEK_SET) == -1 ||
1.44 deraadt 1315: atomicio(vwrite, local_fd, data, len) != len) &&
1.21 djm 1316: !write_error) {
1317: write_errno = errno;
1318: write_error = 1;
1319: max_req = 0;
1320: }
1.101 djm 1321: else if (!reordered && req->offset <= highwater)
1322: highwater = req->offset + len;
1323: else if (!reordered && req->offset > highwater)
1324: reordered = 1;
1.39 fgsch 1325: progress_counter += len;
1.98 djm 1326: free(data);
1.1 djm 1327:
1.21 djm 1328: if (len == req->len) {
1329: TAILQ_REMOVE(&requests, req, tq);
1.98 djm 1330: free(req);
1.21 djm 1331: num_req--;
1332: } else {
1333: /* Resend the request for the missing data */
1334: debug3("Short data block, re-requesting "
1.26 itojun 1335: "%llu -> %llu (%2d)",
1.28 markus 1336: (unsigned long long)req->offset + len,
1.27 itojun 1337: (unsigned long long)req->offset +
1338: req->len - 1, num_req);
1.23 djm 1339: req->id = conn->msg_id++;
1.21 djm 1340: req->len -= len;
1341: req->offset += len;
1.93 djm 1342: send_read_request(conn, req->id,
1.23 djm 1343: req->offset, req->len, handle, handle_len);
1.21 djm 1344: /* Reduce the request size */
1345: if (len < buflen)
1346: buflen = MAX(MIN_READ_SIZE, len);
1347: }
1348: if (max_req > 0) { /* max_req = 0 iff EOF received */
1349: if (size > 0 && offset > size) {
1350: /* Only one request at a time
1351: * after the expected EOF */
1352: debug3("Finish at %llu (%2d)",
1.26 itojun 1353: (unsigned long long)offset,
1354: num_req);
1.21 djm 1355: max_req = 1;
1.49 djm 1356: } else if (max_req <= conn->num_requests) {
1.21 djm 1357: ++max_req;
1358: }
1.1 djm 1359: }
1.21 djm 1360: break;
1361: default:
1.33 deraadt 1362: fatal("Expected SSH2_FXP_DATA(%u) packet, got %u",
1.1 djm 1363: SSH2_FXP_DATA, type);
1364: }
1.21 djm 1365: }
1.1 djm 1366:
1.39 fgsch 1367: if (showprogress && size)
1368: stop_progress_meter();
1369:
1.21 djm 1370: /* Sanity check */
1371: if (TAILQ_FIRST(&requests) != NULL)
1372: fatal("Transfer complete, but requests still in queue");
1.101 djm 1373: /* Truncate at highest contiguous point to avoid holes on interrupt */
1374: if (read_error || write_error || interrupted) {
1.105 djm 1375: if (reordered && resume_flag) {
1.101 djm 1376: error("Unable to resume download of \"%s\": "
1377: "server reordered requests", local_path);
1378: }
1379: debug("truncating at %llu", (unsigned long long)highwater);
1380: ftruncate(local_fd, highwater);
1381: }
1.21 djm 1382: if (read_error) {
1.28 markus 1383: error("Couldn't read from remote file \"%s\" : %s",
1.21 djm 1384: remote_path, fx2txt(status));
1.103 djm 1385: status = -1;
1.23 djm 1386: do_close(conn, handle, handle_len);
1.21 djm 1387: } else if (write_error) {
1388: error("Couldn't write to \"%s\": %s", local_path,
1389: strerror(write_errno));
1.116 djm 1390: status = SSH2_FX_FAILURE;
1.23 djm 1391: do_close(conn, handle, handle_len);
1.21 djm 1392: } else {
1.116 djm 1393: if (do_close(conn, handle, handle_len) != 0 || interrupted)
1394: status = SSH2_FX_FAILURE;
1395: else
1396: status = SSH2_FX_OK;
1.21 djm 1397: /* Override umask and utimes if asked */
1.105 djm 1398: if (preserve_flag && fchmod(local_fd, mode) == -1)
1.21 djm 1399: error("Couldn't set mode on \"%s\": %s", local_path,
1.37 deraadt 1400: strerror(errno));
1.105 djm 1401: if (preserve_flag &&
1402: (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME)) {
1.21 djm 1403: struct timeval tv[2];
1404: tv[0].tv_sec = a->atime;
1405: tv[1].tv_sec = a->mtime;
1406: tv[0].tv_usec = tv[1].tv_usec = 0;
1407: if (utimes(local_path, tv) == -1)
1408: error("Can't set times on \"%s\": %s",
1.37 deraadt 1409: local_path, strerror(errno));
1.1 djm 1410: }
1.107 djm 1411: if (fsync_flag) {
1412: debug("syncing \"%s\"", local_path);
1413: if (fsync(local_fd) == -1)
1414: error("Couldn't sync file \"%s\": %s",
1415: local_path, strerror(errno));
1416: }
1.10 djm 1417: }
1.5 djm 1418: close(local_fd);
1.116 djm 1419: sshbuf_free(msg);
1.98 djm 1420: free(handle);
1.23 djm 1421:
1422: return(status);
1.1 djm 1423: }
1424:
1.89 djm 1425: static int
1.116 djm 1426: download_dir_internal(struct sftp_conn *conn, const char *src, const char *dst,
1427: int depth, Attrib *dirattrib, int preserve_flag, int print_flag,
1428: int resume_flag, int fsync_flag)
1.89 djm 1429: {
1430: int i, ret = 0;
1431: SFTP_DIRENT **dir_entries;
1432: char *filename, *new_src, *new_dst;
1433: mode_t mode = 0777;
1434:
1435: if (depth >= MAX_DIR_DEPTH) {
1436: error("Maximum directory depth exceeded: %d levels", depth);
1437: return -1;
1438: }
1439:
1440: if (dirattrib == NULL &&
1441: (dirattrib = do_stat(conn, src, 1)) == NULL) {
1442: error("Unable to stat remote directory \"%s\"", src);
1443: return -1;
1444: }
1445: if (!S_ISDIR(dirattrib->perm)) {
1446: error("\"%s\" is not a directory", src);
1447: return -1;
1448: }
1.105 djm 1449: if (print_flag)
1.89 djm 1450: printf("Retrieving %s\n", src);
1451:
1452: if (dirattrib->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)
1453: mode = dirattrib->perm & 01777;
1454: else {
1455: debug("Server did not send permissions for "
1456: "directory \"%s\"", dst);
1457: }
1458:
1459: if (mkdir(dst, mode) == -1 && errno != EEXIST) {
1460: error("mkdir %s: %s", dst, strerror(errno));
1461: return -1;
1462: }
1463:
1464: if (do_readdir(conn, src, &dir_entries) == -1) {
1465: error("%s: Failed to get directory contents", src);
1466: return -1;
1467: }
1468:
1469: for (i = 0; dir_entries[i] != NULL && !interrupted; i++) {
1470: filename = dir_entries[i]->filename;
1471:
1472: new_dst = path_append(dst, filename);
1473: new_src = path_append(src, filename);
1474:
1475: if (S_ISDIR(dir_entries[i]->a.perm)) {
1476: if (strcmp(filename, ".") == 0 ||
1477: strcmp(filename, "..") == 0)
1478: continue;
1479: if (download_dir_internal(conn, new_src, new_dst,
1.105 djm 1480: depth + 1, &(dir_entries[i]->a), preserve_flag,
1.107 djm 1481: print_flag, resume_flag, fsync_flag) == -1)
1.89 djm 1482: ret = -1;
1483: } else if (S_ISREG(dir_entries[i]->a.perm) ) {
1484: if (do_download(conn, new_src, new_dst,
1.107 djm 1485: &(dir_entries[i]->a), preserve_flag,
1486: resume_flag, fsync_flag) == -1) {
1.89 djm 1487: error("Download of file %s to %s failed",
1488: new_src, new_dst);
1489: ret = -1;
1490: }
1491: } else
1492: logit("%s: not a regular file\n", new_src);
1493:
1.98 djm 1494: free(new_dst);
1495: free(new_src);
1.89 djm 1496: }
1497:
1.105 djm 1498: if (preserve_flag) {
1.89 djm 1499: if (dirattrib->flags & SSH2_FILEXFER_ATTR_ACMODTIME) {
1500: struct timeval tv[2];
1501: tv[0].tv_sec = dirattrib->atime;
1502: tv[1].tv_sec = dirattrib->mtime;
1503: tv[0].tv_usec = tv[1].tv_usec = 0;
1504: if (utimes(dst, tv) == -1)
1505: error("Can't set times on \"%s\": %s",
1506: dst, strerror(errno));
1507: } else
1508: debug("Server did not send times for directory "
1509: "\"%s\"", dst);
1510: }
1511:
1512: free_sftp_dirents(dir_entries);
1513:
1514: return ret;
1515: }
1516:
1517: int
1.116 djm 1518: download_dir(struct sftp_conn *conn, const char *src, const char *dst,
1519: Attrib *dirattrib, int preserve_flag, int print_flag, int resume_flag,
1520: int fsync_flag)
1.89 djm 1521: {
1522: char *src_canon;
1523: int ret;
1524:
1525: if ((src_canon = do_realpath(conn, src)) == NULL) {
1.107 djm 1526: error("Unable to canonicalize path \"%s\"", src);
1.89 djm 1527: return -1;
1528: }
1529:
1.105 djm 1530: ret = download_dir_internal(conn, src_canon, dst, 0,
1.107 djm 1531: dirattrib, preserve_flag, print_flag, resume_flag, fsync_flag);
1.98 djm 1532: free(src_canon);
1.89 djm 1533: return ret;
1534: }
1535:
1.1 djm 1536: int
1.116 djm 1537: do_upload(struct sftp_conn *conn, const char *local_path,
1538: const char *remote_path, int preserve_flag, int resume, int fsync_flag)
1.1 djm 1539: {
1.116 djm 1540: int r, local_fd;
1541: u_int status = SSH2_FX_OK;
1542: u_int id;
1543: u_char type;
1.100 dtucker 1544: off_t offset, progress_counter;
1.116 djm 1545: u_char *handle, *data;
1546: struct sshbuf *msg;
1.1 djm 1547: struct stat sb;
1.115 logan 1548: Attrib a, *c = NULL;
1.21 djm 1549: u_int32_t startid;
1550: u_int32_t ackid;
1.22 djm 1551: struct outstanding_ack {
1552: u_int id;
1553: u_int len;
1.77 djm 1554: off_t offset;
1.28 markus 1555: TAILQ_ENTRY(outstanding_ack) tq;
1.22 djm 1556: };
1557: TAILQ_HEAD(ackhead, outstanding_ack) acks;
1.50 pedro 1558: struct outstanding_ack *ack = NULL;
1.116 djm 1559: size_t handle_len;
1.22 djm 1560:
1561: TAILQ_INIT(&acks);
1.1 djm 1562:
1563: if ((local_fd = open(local_path, O_RDONLY, 0)) == -1) {
1564: error("Couldn't open local file \"%s\" for reading: %s",
1565: local_path, strerror(errno));
1566: return(-1);
1567: }
1568: if (fstat(local_fd, &sb) == -1) {
1569: error("Couldn't fstat local file \"%s\": %s",
1570: local_path, strerror(errno));
1.41 djm 1571: close(local_fd);
1572: return(-1);
1573: }
1574: if (!S_ISREG(sb.st_mode)) {
1575: error("%s is not a regular file", local_path);
1.1 djm 1576: close(local_fd);
1577: return(-1);
1578: }
1579: stat_to_attrib(&sb, &a);
1580:
1581: a.flags &= ~SSH2_FILEXFER_ATTR_SIZE;
1582: a.flags &= ~SSH2_FILEXFER_ATTR_UIDGID;
1583: a.perm &= 0777;
1.105 djm 1584: if (!preserve_flag)
1.1 djm 1585: a.flags &= ~SSH2_FILEXFER_ATTR_ACMODTIME;
1586:
1.115 logan 1587: if (resume) {
1588: /* Get remote file size if it exists */
1589: if ((c = do_stat(conn, remote_path, 0)) == NULL) {
1590: close(local_fd);
1591: return -1;
1592: }
1593:
1594: if ((off_t)c->size >= sb.st_size) {
1595: error("destination file bigger or same size as "
1596: "source file");
1597: close(local_fd);
1598: return -1;
1599: }
1600:
1601: if (lseek(local_fd, (off_t)c->size, SEEK_SET) == -1) {
1602: close(local_fd);
1603: return -1;
1604: }
1605: }
1606:
1.116 djm 1607: if ((msg = sshbuf_new()) == NULL)
1608: fatal("%s: sshbuf_new failed", __func__);
1.1 djm 1609:
1610: /* Send open request */
1.23 djm 1611: id = conn->msg_id++;
1.116 djm 1612: if ((r = sshbuf_put_u8(msg, SSH2_FXP_OPEN)) != 0 ||
1613: (r = sshbuf_put_u32(msg, id)) != 0 ||
1614: (r = sshbuf_put_cstring(msg, remote_path)) != 0 ||
1615: (r = sshbuf_put_u32(msg, SSH2_FXF_WRITE|SSH2_FXF_CREAT|
1616: (resume ? SSH2_FXF_APPEND : SSH2_FXF_TRUNC))) != 0 ||
1617: (r = encode_attrib(msg, &a)) != 0)
1618: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1619: send_msg(conn, msg);
1.33 deraadt 1620: debug3("Sent message SSH2_FXP_OPEN I:%u P:%s", id, remote_path);
1.1 djm 1621:
1.116 djm 1622: sshbuf_reset(msg);
1.1 djm 1623:
1.93 djm 1624: handle = get_handle(conn, id, &handle_len,
1.88 djm 1625: "remote open(\"%s\")", remote_path);
1.1 djm 1626: if (handle == NULL) {
1627: close(local_fd);
1.116 djm 1628: sshbuf_free(msg);
1.80 djm 1629: return -1;
1.1 djm 1630: }
1631:
1.21 djm 1632: startid = ackid = id + 1;
1.23 djm 1633: data = xmalloc(conn->transfer_buflen);
1.20 djm 1634:
1.1 djm 1635: /* Read from local and write to remote */
1.115 logan 1636: offset = progress_counter = (resume ? c->size : 0);
1.39 fgsch 1637: if (showprogress)
1.100 dtucker 1638: start_progress_meter(local_path, sb.st_size,
1639: &progress_counter);
1.39 fgsch 1640:
1.19 deraadt 1641: for (;;) {
1.1 djm 1642: int len;
1643:
1644: /*
1.51 deraadt 1645: * Can't use atomicio here because it returns 0 on EOF,
1.49 djm 1646: * thus losing the last block of the file.
1.51 deraadt 1647: * Simulate an EOF on interrupt, allowing ACKs from the
1.49 djm 1648: * server to drain.
1.1 djm 1649: */
1.80 djm 1650: if (interrupted || status != SSH2_FX_OK)
1.49 djm 1651: len = 0;
1652: else do
1.23 djm 1653: len = read(local_fd, data, conn->transfer_buflen);
1.1 djm 1654: while ((len == -1) && (errno == EINTR || errno == EAGAIN));
1655:
1656: if (len == -1)
1657: fatal("Couldn't read from \"%s\": %s", local_path,
1658: strerror(errno));
1.21 djm 1659:
1660: if (len != 0) {
1.108 djm 1661: ack = xcalloc(1, sizeof(*ack));
1.22 djm 1662: ack->id = ++id;
1663: ack->offset = offset;
1664: ack->len = len;
1665: TAILQ_INSERT_TAIL(&acks, ack, tq);
1666:
1.116 djm 1667: sshbuf_reset(msg);
1668: if ((r = sshbuf_put_u8(msg, SSH2_FXP_WRITE)) != 0 ||
1669: (r = sshbuf_put_u32(msg, ack->id)) != 0 ||
1670: (r = sshbuf_put_string(msg, handle,
1671: handle_len)) != 0 ||
1672: (r = sshbuf_put_u64(msg, offset)) != 0 ||
1673: (r = sshbuf_put_string(msg, data, len)) != 0)
1674: fatal("%s: buffer error: %s",
1675: __func__, ssh_err(r));
1676: send_msg(conn, msg);
1.33 deraadt 1677: debug3("Sent message SSH2_FXP_WRITE I:%u O:%llu S:%u",
1.37 deraadt 1678: id, (unsigned long long)offset, len);
1.22 djm 1679: } else if (TAILQ_FIRST(&acks) == NULL)
1.1 djm 1680: break;
1681:
1.22 djm 1682: if (ack == NULL)
1683: fatal("Unexpected ACK %u", id);
1684:
1.28 markus 1685: if (id == startid || len == 0 ||
1.23 djm 1686: id - ackid >= conn->num_requests) {
1.116 djm 1687: u_int rid;
1.31 djm 1688:
1.116 djm 1689: sshbuf_reset(msg);
1690: get_msg(conn, msg);
1691: if ((r = sshbuf_get_u8(msg, &type)) != 0 ||
1692: (r = sshbuf_get_u32(msg, &rid)) != 0)
1693: fatal("%s: buffer error: %s",
1694: __func__, ssh_err(r));
1.22 djm 1695:
1696: if (type != SSH2_FXP_STATUS)
1697: fatal("Expected SSH2_FXP_STATUS(%d) packet, "
1698: "got %d", SSH2_FXP_STATUS, type);
1699:
1.116 djm 1700: if ((r = sshbuf_get_u32(msg, &status)) != 0)
1701: fatal("%s: buffer error: %s",
1702: __func__, ssh_err(r));
1703: debug3("SSH2_FXP_STATUS %u", status);
1.22 djm 1704:
1705: /* Find the request in our queue */
1.53 deraadt 1706: for (ack = TAILQ_FIRST(&acks);
1.116 djm 1707: ack != NULL && ack->id != rid;
1.22 djm 1708: ack = TAILQ_NEXT(ack, tq))
1709: ;
1710: if (ack == NULL)
1.116 djm 1711: fatal("Can't find request for ID %u", rid);
1.22 djm 1712: TAILQ_REMOVE(&acks, ack, tq);
1.77 djm 1713: debug3("In write loop, ack for %u %u bytes at %lld",
1714: ack->id, ack->len, (long long)ack->offset);
1.21 djm 1715: ++ackid;
1.100 dtucker 1716: progress_counter += ack->len;
1.98 djm 1717: free(ack);
1.1 djm 1718: }
1719: offset += len;
1.77 djm 1720: if (offset < 0)
1721: fatal("%s: offset < 0", __func__);
1.1 djm 1722: }
1.116 djm 1723: sshbuf_free(msg);
1.80 djm 1724:
1.39 fgsch 1725: if (showprogress)
1726: stop_progress_meter();
1.98 djm 1727: free(data);
1.1 djm 1728:
1.80 djm 1729: if (status != SSH2_FX_OK) {
1730: error("Couldn't write to remote file \"%s\": %s",
1731: remote_path, fx2txt(status));
1.116 djm 1732: status = SSH2_FX_FAILURE;
1.80 djm 1733: }
1734:
1.1 djm 1735: if (close(local_fd) == -1) {
1736: error("Couldn't close local file \"%s\": %s", local_path,
1737: strerror(errno));
1.116 djm 1738: status = SSH2_FX_FAILURE;
1.1 djm 1739: }
1740:
1.10 djm 1741: /* Override umask and utimes if asked */
1.105 djm 1742: if (preserve_flag)
1.23 djm 1743: do_fsetstat(conn, handle, handle_len, &a);
1.10 djm 1744:
1.107 djm 1745: if (fsync_flag)
1746: (void)do_fsync(conn, handle, handle_len);
1747:
1.80 djm 1748: if (do_close(conn, handle, handle_len) != SSH2_FX_OK)
1.116 djm 1749: status = SSH2_FX_FAILURE;
1750:
1.98 djm 1751: free(handle);
1.5 djm 1752:
1.116 djm 1753: return status == SSH2_FX_OK ? 0 : -1;
1.1 djm 1754: }
1.89 djm 1755:
1756: static int
1.116 djm 1757: upload_dir_internal(struct sftp_conn *conn, const char *src, const char *dst,
1758: int depth, int preserve_flag, int print_flag, int resume, int fsync_flag)
1.89 djm 1759: {
1.116 djm 1760: int ret = 0;
1761: u_int status;
1.89 djm 1762: DIR *dirp;
1763: struct dirent *dp;
1764: char *filename, *new_src, *new_dst;
1765: struct stat sb;
1766: Attrib a;
1767:
1768: if (depth >= MAX_DIR_DEPTH) {
1769: error("Maximum directory depth exceeded: %d levels", depth);
1770: return -1;
1771: }
1772:
1773: if (stat(src, &sb) == -1) {
1774: error("Couldn't stat directory \"%s\": %s",
1775: src, strerror(errno));
1776: return -1;
1777: }
1778: if (!S_ISDIR(sb.st_mode)) {
1779: error("\"%s\" is not a directory", src);
1780: return -1;
1781: }
1.105 djm 1782: if (print_flag)
1.89 djm 1783: printf("Entering %s\n", src);
1784:
1785: attrib_clear(&a);
1786: stat_to_attrib(&sb, &a);
1787: a.flags &= ~SSH2_FILEXFER_ATTR_SIZE;
1788: a.flags &= ~SSH2_FILEXFER_ATTR_UIDGID;
1789: a.perm &= 01777;
1.105 djm 1790: if (!preserve_flag)
1.89 djm 1791: a.flags &= ~SSH2_FILEXFER_ATTR_ACMODTIME;
1.101 djm 1792:
1.89 djm 1793: status = do_mkdir(conn, dst, &a, 0);
1794: /*
1795: * we lack a portable status for errno EEXIST,
1796: * so if we get a SSH2_FX_FAILURE back we must check
1797: * if it was created successfully.
1798: */
1799: if (status != SSH2_FX_OK) {
1800: if (status != SSH2_FX_FAILURE)
1801: return -1;
1.101 djm 1802: if (do_stat(conn, dst, 0) == NULL)
1.89 djm 1803: return -1;
1804: }
1805:
1806: if ((dirp = opendir(src)) == NULL) {
1807: error("Failed to open dir \"%s\": %s", src, strerror(errno));
1808: return -1;
1809: }
1.101 djm 1810:
1.89 djm 1811: while (((dp = readdir(dirp)) != NULL) && !interrupted) {
1812: if (dp->d_ino == 0)
1813: continue;
1814: filename = dp->d_name;
1815: new_dst = path_append(dst, filename);
1816: new_src = path_append(src, filename);
1817:
1.90 dtucker 1818: if (lstat(new_src, &sb) == -1) {
1819: logit("%s: lstat failed: %s", filename,
1820: strerror(errno));
1821: ret = -1;
1822: } else if (S_ISDIR(sb.st_mode)) {
1.89 djm 1823: if (strcmp(filename, ".") == 0 ||
1824: strcmp(filename, "..") == 0)
1825: continue;
1826:
1827: if (upload_dir_internal(conn, new_src, new_dst,
1.115 logan 1828: depth + 1, preserve_flag, print_flag, resume,
1.107 djm 1829: fsync_flag) == -1)
1.89 djm 1830: ret = -1;
1.90 dtucker 1831: } else if (S_ISREG(sb.st_mode)) {
1.105 djm 1832: if (do_upload(conn, new_src, new_dst,
1.115 logan 1833: preserve_flag, resume, fsync_flag) == -1) {
1.89 djm 1834: error("Uploading of file %s to %s failed!",
1835: new_src, new_dst);
1836: ret = -1;
1837: }
1838: } else
1839: logit("%s: not a regular file\n", filename);
1.98 djm 1840: free(new_dst);
1841: free(new_src);
1.89 djm 1842: }
1843:
1844: do_setstat(conn, dst, &a);
1845:
1846: (void) closedir(dirp);
1847: return ret;
1848: }
1849:
1850: int
1.116 djm 1851: upload_dir(struct sftp_conn *conn, const char *src, const char *dst,
1852: int preserve_flag, int print_flag, int resume, int fsync_flag)
1.89 djm 1853: {
1854: char *dst_canon;
1855: int ret;
1856:
1857: if ((dst_canon = do_realpath(conn, dst)) == NULL) {
1.107 djm 1858: error("Unable to canonicalize path \"%s\"", dst);
1.89 djm 1859: return -1;
1860: }
1861:
1.106 djm 1862: ret = upload_dir_internal(conn, src, dst_canon, 0, preserve_flag,
1.115 logan 1863: print_flag, resume, fsync_flag);
1.107 djm 1864:
1.98 djm 1865: free(dst_canon);
1.89 djm 1866: return ret;
1867: }
1868:
1869: char *
1.116 djm 1870: path_append(const char *p1, const char *p2)
1.89 djm 1871: {
1872: char *ret;
1873: size_t len = strlen(p1) + strlen(p2) + 2;
1874:
1875: ret = xmalloc(len);
1876: strlcpy(ret, p1, len);
1877: if (p1[0] != '\0' && p1[strlen(p1) - 1] != '/')
1878: strlcat(ret, "/", len);
1879: strlcat(ret, p2, len);
1880:
1881: return(ret);
1882: }
1883:
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