Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1 | /* |
Darren Tucker | 37bd366 | 2004-02-24 09:19:15 +1100 | [diff] [blame] | 2 | * Copyright (c) 2000-2004 Markus Friedl. All rights reserved. |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 3 | * |
Darren Tucker | 37bd366 | 2004-02-24 09:19:15 +1100 | [diff] [blame] | 4 | * Permission to use, copy, modify, and distribute this software for any |
| 5 | * purpose with or without fee is hereby granted, provided that the above |
| 6 | * copyright notice and this permission notice appear in all copies. |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 7 | * |
Darren Tucker | 37bd366 | 2004-02-24 09:19:15 +1100 | [diff] [blame] | 8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 15 | */ |
| 16 | #include "includes.h" |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 17 | RCSID("$OpenBSD: sftp-server.c,v 1.48 2005/06/17 02:44:33 djm Exp $"); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 18 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 19 | #include "buffer.h" |
| 20 | #include "bufaux.h" |
| 21 | #include "getput.h" |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 22 | #include "log.h" |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 23 | #include "xmalloc.h" |
| 24 | |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 25 | #include "sftp.h" |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 26 | #include "sftp-common.h" |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 27 | |
| 28 | /* helper */ |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 29 | #define get_int64() buffer_get_int64(&iqueue); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 30 | #define get_int() buffer_get_int(&iqueue); |
| 31 | #define get_string(lenp) buffer_get_string(&iqueue, lenp); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 32 | #define TRACE debug |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 33 | |
Ben Lindstrom | 49a79c0 | 2000-11-17 03:47:20 +0000 | [diff] [blame] | 34 | extern char *__progname; |
Ben Lindstrom | 49a79c0 | 2000-11-17 03:47:20 +0000 | [diff] [blame] | 35 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 36 | /* input and output queue */ |
| 37 | Buffer iqueue; |
| 38 | Buffer oqueue; |
| 39 | |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 40 | /* Version of client */ |
| 41 | int version; |
| 42 | |
Darren Tucker | a6612d4 | 2003-06-28 12:39:03 +1000 | [diff] [blame] | 43 | /* portable attributes, etc. */ |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 44 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 45 | typedef struct Stat Stat; |
| 46 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 47 | struct Stat { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 48 | char *name; |
| 49 | char *long_name; |
| 50 | Attrib attrib; |
| 51 | }; |
| 52 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 53 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 54 | errno_to_portable(int unixerrno) |
| 55 | { |
| 56 | int ret = 0; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 57 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 58 | switch (unixerrno) { |
| 59 | case 0: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 60 | ret = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 61 | break; |
| 62 | case ENOENT: |
| 63 | case ENOTDIR: |
| 64 | case EBADF: |
| 65 | case ELOOP: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 66 | ret = SSH2_FX_NO_SUCH_FILE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 67 | break; |
| 68 | case EPERM: |
| 69 | case EACCES: |
| 70 | case EFAULT: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 71 | ret = SSH2_FX_PERMISSION_DENIED; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 72 | break; |
| 73 | case ENAMETOOLONG: |
| 74 | case EINVAL: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 75 | ret = SSH2_FX_BAD_MESSAGE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 76 | break; |
| 77 | default: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 78 | ret = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 79 | break; |
| 80 | } |
| 81 | return ret; |
| 82 | } |
| 83 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 84 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 85 | flags_from_portable(int pflags) |
| 86 | { |
| 87 | int flags = 0; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 88 | |
Ben Lindstrom | 3659251 | 2001-03-05 05:02:08 +0000 | [diff] [blame] | 89 | if ((pflags & SSH2_FXF_READ) && |
| 90 | (pflags & SSH2_FXF_WRITE)) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 91 | flags = O_RDWR; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 92 | } else if (pflags & SSH2_FXF_READ) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 93 | flags = O_RDONLY; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 94 | } else if (pflags & SSH2_FXF_WRITE) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 95 | flags = O_WRONLY; |
| 96 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 97 | if (pflags & SSH2_FXF_CREAT) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 98 | flags |= O_CREAT; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 99 | if (pflags & SSH2_FXF_TRUNC) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 100 | flags |= O_TRUNC; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 101 | if (pflags & SSH2_FXF_EXCL) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 102 | flags |= O_EXCL; |
| 103 | return flags; |
| 104 | } |
| 105 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 106 | static Attrib * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 107 | get_attrib(void) |
| 108 | { |
| 109 | return decode_attrib(&iqueue); |
| 110 | } |
| 111 | |
| 112 | /* handle handles */ |
| 113 | |
| 114 | typedef struct Handle Handle; |
| 115 | struct Handle { |
| 116 | int use; |
| 117 | DIR *dirp; |
| 118 | int fd; |
| 119 | char *name; |
| 120 | }; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 121 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 122 | enum { |
| 123 | HANDLE_UNUSED, |
| 124 | HANDLE_DIR, |
| 125 | HANDLE_FILE |
| 126 | }; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 127 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 128 | Handle handles[100]; |
| 129 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 130 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 131 | handle_init(void) |
| 132 | { |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 133 | u_int i; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 134 | |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 135 | for (i = 0; i < sizeof(handles)/sizeof(Handle); i++) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 136 | handles[i].use = HANDLE_UNUSED; |
| 137 | } |
| 138 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 139 | static int |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 140 | handle_new(int use, const char *name, int fd, DIR *dirp) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 141 | { |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 142 | u_int i; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 143 | |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 144 | for (i = 0; i < sizeof(handles)/sizeof(Handle); i++) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 145 | if (handles[i].use == HANDLE_UNUSED) { |
| 146 | handles[i].use = use; |
| 147 | handles[i].dirp = dirp; |
| 148 | handles[i].fd = fd; |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 149 | handles[i].name = xstrdup(name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 150 | return i; |
| 151 | } |
| 152 | } |
| 153 | return -1; |
| 154 | } |
| 155 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 156 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 157 | handle_is_ok(int i, int type) |
| 158 | { |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 159 | return i >= 0 && (u_int)i < sizeof(handles)/sizeof(Handle) && |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 160 | handles[i].use == type; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 161 | } |
| 162 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 163 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 164 | handle_to_string(int handle, char **stringp, int *hlenp) |
| 165 | { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 166 | if (stringp == NULL || hlenp == NULL) |
| 167 | return -1; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 168 | *stringp = xmalloc(sizeof(int32_t)); |
| 169 | PUT_32BIT(*stringp, handle); |
| 170 | *hlenp = sizeof(int32_t); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 171 | return 0; |
| 172 | } |
| 173 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 174 | static int |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 175 | handle_from_string(const char *handle, u_int hlen) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 176 | { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 177 | int val; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 178 | |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 179 | if (hlen != sizeof(int32_t)) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 180 | return -1; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 181 | val = GET_32BIT(handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 182 | if (handle_is_ok(val, HANDLE_FILE) || |
| 183 | handle_is_ok(val, HANDLE_DIR)) |
| 184 | return val; |
| 185 | return -1; |
| 186 | } |
| 187 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 188 | static char * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 189 | handle_to_name(int handle) |
| 190 | { |
| 191 | if (handle_is_ok(handle, HANDLE_DIR)|| |
| 192 | handle_is_ok(handle, HANDLE_FILE)) |
| 193 | return handles[handle].name; |
| 194 | return NULL; |
| 195 | } |
| 196 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 197 | static DIR * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 198 | handle_to_dir(int handle) |
| 199 | { |
| 200 | if (handle_is_ok(handle, HANDLE_DIR)) |
| 201 | return handles[handle].dirp; |
| 202 | return NULL; |
| 203 | } |
| 204 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 205 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 206 | handle_to_fd(int handle) |
| 207 | { |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 208 | if (handle_is_ok(handle, HANDLE_FILE)) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 209 | return handles[handle].fd; |
| 210 | return -1; |
| 211 | } |
| 212 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 213 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 214 | handle_close(int handle) |
| 215 | { |
| 216 | int ret = -1; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 217 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 218 | if (handle_is_ok(handle, HANDLE_FILE)) { |
| 219 | ret = close(handles[handle].fd); |
| 220 | handles[handle].use = HANDLE_UNUSED; |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 221 | xfree(handles[handle].name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 222 | } else if (handle_is_ok(handle, HANDLE_DIR)) { |
| 223 | ret = closedir(handles[handle].dirp); |
| 224 | handles[handle].use = HANDLE_UNUSED; |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 225 | xfree(handles[handle].name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 226 | } else { |
| 227 | errno = ENOENT; |
| 228 | } |
| 229 | return ret; |
| 230 | } |
| 231 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 232 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 233 | get_handle(void) |
| 234 | { |
| 235 | char *handle; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 236 | int val = -1; |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 237 | u_int hlen; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 238 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 239 | handle = get_string(&hlen); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 240 | if (hlen < 256) |
| 241 | val = handle_from_string(handle, hlen); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 242 | xfree(handle); |
| 243 | return val; |
| 244 | } |
| 245 | |
| 246 | /* send replies */ |
| 247 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 248 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 249 | send_msg(Buffer *m) |
| 250 | { |
| 251 | int mlen = buffer_len(m); |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 252 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 253 | buffer_put_int(&oqueue, mlen); |
| 254 | buffer_append(&oqueue, buffer_ptr(m), mlen); |
| 255 | buffer_consume(m, mlen); |
| 256 | } |
| 257 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 258 | static void |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 259 | send_status(u_int32_t id, u_int32_t status) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 260 | { |
| 261 | Buffer msg; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 262 | const char *status_messages[] = { |
| 263 | "Success", /* SSH_FX_OK */ |
| 264 | "End of file", /* SSH_FX_EOF */ |
| 265 | "No such file", /* SSH_FX_NO_SUCH_FILE */ |
| 266 | "Permission denied", /* SSH_FX_PERMISSION_DENIED */ |
| 267 | "Failure", /* SSH_FX_FAILURE */ |
| 268 | "Bad message", /* SSH_FX_BAD_MESSAGE */ |
| 269 | "No connection", /* SSH_FX_NO_CONNECTION */ |
| 270 | "Connection lost", /* SSH_FX_CONNECTION_LOST */ |
| 271 | "Operation unsupported", /* SSH_FX_OP_UNSUPPORTED */ |
| 272 | "Unknown error" /* Others */ |
| 273 | }; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 274 | |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 275 | TRACE("sent status id %u error %u", id, status); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 276 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 277 | buffer_put_char(&msg, SSH2_FXP_STATUS); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 278 | buffer_put_int(&msg, id); |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 279 | buffer_put_int(&msg, status); |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 280 | if (version >= 3) { |
Ben Lindstrom | a370005 | 2001-04-05 23:26:32 +0000 | [diff] [blame] | 281 | buffer_put_cstring(&msg, |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 282 | status_messages[MIN(status,SSH2_FX_MAX)]); |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 283 | buffer_put_cstring(&msg, ""); |
| 284 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 285 | send_msg(&msg); |
| 286 | buffer_free(&msg); |
| 287 | } |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 288 | static void |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 289 | send_data_or_handle(char type, u_int32_t id, const char *data, int dlen) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 290 | { |
| 291 | Buffer msg; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 292 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 293 | buffer_init(&msg); |
| 294 | buffer_put_char(&msg, type); |
| 295 | buffer_put_int(&msg, id); |
| 296 | buffer_put_string(&msg, data, dlen); |
| 297 | send_msg(&msg); |
| 298 | buffer_free(&msg); |
| 299 | } |
| 300 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 301 | static void |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 302 | send_data(u_int32_t id, const char *data, int dlen) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 303 | { |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 304 | TRACE("sent data id %u len %d", id, dlen); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 305 | send_data_or_handle(SSH2_FXP_DATA, id, data, dlen); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 306 | } |
| 307 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 308 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 309 | send_handle(u_int32_t id, int handle) |
| 310 | { |
| 311 | char *string; |
| 312 | int hlen; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 313 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 314 | handle_to_string(handle, &string, &hlen); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 315 | TRACE("sent handle id %u handle %d", id, handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 316 | send_data_or_handle(SSH2_FXP_HANDLE, id, string, hlen); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 317 | xfree(string); |
| 318 | } |
| 319 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 320 | static void |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 321 | send_names(u_int32_t id, int count, const Stat *stats) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 322 | { |
| 323 | Buffer msg; |
| 324 | int i; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 325 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 326 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 327 | buffer_put_char(&msg, SSH2_FXP_NAME); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 328 | buffer_put_int(&msg, id); |
| 329 | buffer_put_int(&msg, count); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 330 | TRACE("sent names id %u count %d", id, count); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 331 | for (i = 0; i < count; i++) { |
| 332 | buffer_put_cstring(&msg, stats[i].name); |
| 333 | buffer_put_cstring(&msg, stats[i].long_name); |
| 334 | encode_attrib(&msg, &stats[i].attrib); |
| 335 | } |
| 336 | send_msg(&msg); |
| 337 | buffer_free(&msg); |
| 338 | } |
| 339 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 340 | static void |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 341 | send_attrib(u_int32_t id, const Attrib *a) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 342 | { |
| 343 | Buffer msg; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 344 | |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 345 | TRACE("sent attrib id %u have 0x%x", id, a->flags); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 346 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 347 | buffer_put_char(&msg, SSH2_FXP_ATTRS); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 348 | buffer_put_int(&msg, id); |
| 349 | encode_attrib(&msg, a); |
| 350 | send_msg(&msg); |
| 351 | buffer_free(&msg); |
| 352 | } |
| 353 | |
| 354 | /* parse incoming */ |
| 355 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 356 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 357 | process_init(void) |
| 358 | { |
| 359 | Buffer msg; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 360 | |
Ben Lindstrom | 937df1d | 2002-06-06 21:58:35 +0000 | [diff] [blame] | 361 | version = get_int(); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 362 | TRACE("client version %d", version); |
| 363 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 364 | buffer_put_char(&msg, SSH2_FXP_VERSION); |
| 365 | buffer_put_int(&msg, SSH2_FILEXFER_VERSION); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 366 | send_msg(&msg); |
| 367 | buffer_free(&msg); |
| 368 | } |
| 369 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 370 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 371 | process_open(void) |
| 372 | { |
| 373 | u_int32_t id, pflags; |
| 374 | Attrib *a; |
| 375 | char *name; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 376 | int handle, fd, flags, mode, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 377 | |
| 378 | id = get_int(); |
| 379 | name = get_string(NULL); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 380 | pflags = get_int(); /* portable flags */ |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 381 | a = get_attrib(); |
| 382 | flags = flags_from_portable(pflags); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 383 | mode = (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ? a->perm : 0666; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 384 | TRACE("open id %u name %s flags %d mode 0%o", id, name, pflags, mode); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 385 | fd = open(name, flags, mode); |
| 386 | if (fd < 0) { |
| 387 | status = errno_to_portable(errno); |
| 388 | } else { |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 389 | handle = handle_new(HANDLE_FILE, name, fd, NULL); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 390 | if (handle < 0) { |
| 391 | close(fd); |
| 392 | } else { |
| 393 | send_handle(id, handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 394 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 395 | } |
| 396 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 397 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 398 | send_status(id, status); |
| 399 | xfree(name); |
| 400 | } |
| 401 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 402 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 403 | process_close(void) |
| 404 | { |
| 405 | u_int32_t id; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 406 | int handle, ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 407 | |
| 408 | id = get_int(); |
| 409 | handle = get_handle(); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 410 | TRACE("close id %u handle %d", id, handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 411 | ret = handle_close(handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 412 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 413 | send_status(id, status); |
| 414 | } |
| 415 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 416 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 417 | process_read(void) |
| 418 | { |
| 419 | char buf[64*1024]; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 420 | u_int32_t id, len; |
| 421 | int handle, fd, ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 422 | u_int64_t off; |
| 423 | |
| 424 | id = get_int(); |
| 425 | handle = get_handle(); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 426 | off = get_int64(); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 427 | len = get_int(); |
| 428 | |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 429 | TRACE("read id %u handle %d off %llu len %d", id, handle, |
Ben Lindstrom | 416d874 | 2001-02-25 02:02:43 +0000 | [diff] [blame] | 430 | (u_int64_t)off, len); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 431 | if (len > sizeof buf) { |
| 432 | len = sizeof buf; |
Damien Miller | 996acd2 | 2003-04-09 20:59:48 +1000 | [diff] [blame] | 433 | logit("read change len %d", len); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 434 | } |
| 435 | fd = handle_to_fd(handle); |
| 436 | if (fd >= 0) { |
| 437 | if (lseek(fd, off, SEEK_SET) < 0) { |
| 438 | error("process_read: seek failed"); |
| 439 | status = errno_to_portable(errno); |
| 440 | } else { |
| 441 | ret = read(fd, buf, len); |
| 442 | if (ret < 0) { |
| 443 | status = errno_to_portable(errno); |
| 444 | } else if (ret == 0) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 445 | status = SSH2_FX_EOF; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 446 | } else { |
| 447 | send_data(id, buf, ret); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 448 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 449 | } |
| 450 | } |
| 451 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 452 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 453 | send_status(id, status); |
| 454 | } |
| 455 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 456 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 457 | process_write(void) |
| 458 | { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 459 | u_int32_t id; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 460 | u_int64_t off; |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 461 | u_int len; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 462 | int handle, fd, ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 463 | char *data; |
| 464 | |
| 465 | id = get_int(); |
| 466 | handle = get_handle(); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 467 | off = get_int64(); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 468 | data = get_string(&len); |
| 469 | |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 470 | TRACE("write id %u handle %d off %llu len %d", id, handle, |
Ben Lindstrom | 416d874 | 2001-02-25 02:02:43 +0000 | [diff] [blame] | 471 | (u_int64_t)off, len); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 472 | fd = handle_to_fd(handle); |
| 473 | if (fd >= 0) { |
| 474 | if (lseek(fd, off, SEEK_SET) < 0) { |
| 475 | status = errno_to_portable(errno); |
| 476 | error("process_write: seek failed"); |
| 477 | } else { |
| 478 | /* XXX ATOMICIO ? */ |
| 479 | ret = write(fd, data, len); |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 480 | if (ret < 0) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 481 | error("process_write: write failed"); |
| 482 | status = errno_to_portable(errno); |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 483 | } else if ((size_t)ret == len) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 484 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 485 | } else { |
Damien Miller | 996acd2 | 2003-04-09 20:59:48 +1000 | [diff] [blame] | 486 | logit("nothing at all written"); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 487 | } |
| 488 | } |
| 489 | } |
| 490 | send_status(id, status); |
| 491 | xfree(data); |
| 492 | } |
| 493 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 494 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 495 | process_do_stat(int do_lstat) |
| 496 | { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 497 | Attrib a; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 498 | struct stat st; |
| 499 | u_int32_t id; |
| 500 | char *name; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 501 | int ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 502 | |
| 503 | id = get_int(); |
| 504 | name = get_string(NULL); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 505 | TRACE("%sstat id %u name %s", do_lstat ? "l" : "", id, name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 506 | ret = do_lstat ? lstat(name, &st) : stat(name, &st); |
| 507 | if (ret < 0) { |
| 508 | status = errno_to_portable(errno); |
| 509 | } else { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 510 | stat_to_attrib(&st, &a); |
| 511 | send_attrib(id, &a); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 512 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 513 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 514 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 515 | send_status(id, status); |
| 516 | xfree(name); |
| 517 | } |
| 518 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 519 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 520 | process_stat(void) |
| 521 | { |
| 522 | process_do_stat(0); |
| 523 | } |
| 524 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 525 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 526 | process_lstat(void) |
| 527 | { |
| 528 | process_do_stat(1); |
| 529 | } |
| 530 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 531 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 532 | process_fstat(void) |
| 533 | { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 534 | Attrib a; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 535 | struct stat st; |
| 536 | u_int32_t id; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 537 | int fd, ret, handle, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 538 | |
| 539 | id = get_int(); |
| 540 | handle = get_handle(); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 541 | TRACE("fstat id %u handle %d", id, handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 542 | fd = handle_to_fd(handle); |
| 543 | if (fd >= 0) { |
| 544 | ret = fstat(fd, &st); |
| 545 | if (ret < 0) { |
| 546 | status = errno_to_portable(errno); |
| 547 | } else { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 548 | stat_to_attrib(&st, &a); |
| 549 | send_attrib(id, &a); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 550 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 551 | } |
| 552 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 553 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 554 | send_status(id, status); |
| 555 | } |
| 556 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 557 | static struct timeval * |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 558 | attrib_to_tv(const Attrib *a) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 559 | { |
| 560 | static struct timeval tv[2]; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 561 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 562 | tv[0].tv_sec = a->atime; |
| 563 | tv[0].tv_usec = 0; |
| 564 | tv[1].tv_sec = a->mtime; |
| 565 | tv[1].tv_usec = 0; |
| 566 | return tv; |
| 567 | } |
| 568 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 569 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 570 | process_setstat(void) |
| 571 | { |
| 572 | Attrib *a; |
| 573 | u_int32_t id; |
| 574 | char *name; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 575 | int status = SSH2_FX_OK, ret; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 576 | |
| 577 | id = get_int(); |
| 578 | name = get_string(NULL); |
| 579 | a = get_attrib(); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 580 | TRACE("setstat id %u name %s", id, name); |
Damien Miller | 00c9217 | 2002-02-13 14:05:00 +1100 | [diff] [blame] | 581 | if (a->flags & SSH2_FILEXFER_ATTR_SIZE) { |
| 582 | ret = truncate(name, a->size); |
| 583 | if (ret == -1) |
| 584 | status = errno_to_portable(errno); |
| 585 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 586 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 587 | ret = chmod(name, a->perm & 0777); |
| 588 | if (ret == -1) |
| 589 | status = errno_to_portable(errno); |
| 590 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 591 | if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 592 | ret = utimes(name, attrib_to_tv(a)); |
| 593 | if (ret == -1) |
| 594 | status = errno_to_portable(errno); |
| 595 | } |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 596 | if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) { |
| 597 | ret = chown(name, a->uid, a->gid); |
| 598 | if (ret == -1) |
| 599 | status = errno_to_portable(errno); |
| 600 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 601 | send_status(id, status); |
| 602 | xfree(name); |
| 603 | } |
| 604 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 605 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 606 | process_fsetstat(void) |
| 607 | { |
| 608 | Attrib *a; |
| 609 | u_int32_t id; |
| 610 | int handle, fd, ret; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 611 | int status = SSH2_FX_OK; |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 612 | char *name; |
Kevin Steves | f7ffab3 | 2001-01-24 20:11:06 +0000 | [diff] [blame] | 613 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 614 | id = get_int(); |
| 615 | handle = get_handle(); |
| 616 | a = get_attrib(); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 617 | TRACE("fsetstat id %u handle %d", id, handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 618 | fd = handle_to_fd(handle); |
| 619 | name = handle_to_name(handle); |
Kevin Steves | f7ffab3 | 2001-01-24 20:11:06 +0000 | [diff] [blame] | 620 | if (fd < 0 || name == NULL) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 621 | status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 622 | } else { |
Damien Miller | 00c9217 | 2002-02-13 14:05:00 +1100 | [diff] [blame] | 623 | if (a->flags & SSH2_FILEXFER_ATTR_SIZE) { |
| 624 | ret = ftruncate(fd, a->size); |
| 625 | if (ret == -1) |
| 626 | status = errno_to_portable(errno); |
| 627 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 628 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) { |
Ben Lindstrom | 200e3c9 | 2001-01-15 01:56:46 +0000 | [diff] [blame] | 629 | #ifdef HAVE_FCHMOD |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 630 | ret = fchmod(fd, a->perm & 0777); |
Ben Lindstrom | 200e3c9 | 2001-01-15 01:56:46 +0000 | [diff] [blame] | 631 | #else |
Kevin Steves | b6b37ba | 2001-01-24 20:01:44 +0000 | [diff] [blame] | 632 | ret = chmod(name, a->perm & 0777); |
Ben Lindstrom | 200e3c9 | 2001-01-15 01:56:46 +0000 | [diff] [blame] | 633 | #endif |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 634 | if (ret == -1) |
| 635 | status = errno_to_portable(errno); |
| 636 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 637 | if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 638 | #ifdef HAVE_FUTIMES |
| 639 | ret = futimes(fd, attrib_to_tv(a)); |
| 640 | #else |
| 641 | ret = utimes(name, attrib_to_tv(a)); |
| 642 | #endif |
| 643 | if (ret == -1) |
| 644 | status = errno_to_portable(errno); |
| 645 | } |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 646 | if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) { |
Ben Lindstrom | 34bb0c7 | 2001-02-13 02:40:56 +0000 | [diff] [blame] | 647 | #ifdef HAVE_FCHOWN |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 648 | ret = fchown(fd, a->uid, a->gid); |
Ben Lindstrom | 34bb0c7 | 2001-02-13 02:40:56 +0000 | [diff] [blame] | 649 | #else |
| 650 | ret = chown(name, a->uid, a->gid); |
| 651 | #endif |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 652 | if (ret == -1) |
| 653 | status = errno_to_portable(errno); |
| 654 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 655 | } |
| 656 | send_status(id, status); |
| 657 | } |
| 658 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 659 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 660 | process_opendir(void) |
| 661 | { |
| 662 | DIR *dirp = NULL; |
| 663 | char *path; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 664 | int handle, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 665 | u_int32_t id; |
| 666 | |
| 667 | id = get_int(); |
| 668 | path = get_string(NULL); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 669 | TRACE("opendir id %u path %s", id, path); |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 670 | dirp = opendir(path); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 671 | if (dirp == NULL) { |
| 672 | status = errno_to_portable(errno); |
| 673 | } else { |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 674 | handle = handle_new(HANDLE_DIR, path, 0, dirp); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 675 | if (handle < 0) { |
| 676 | closedir(dirp); |
| 677 | } else { |
| 678 | send_handle(id, handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 679 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 680 | } |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 681 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 682 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 683 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 684 | send_status(id, status); |
| 685 | xfree(path); |
| 686 | } |
| 687 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 688 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 689 | process_readdir(void) |
| 690 | { |
| 691 | DIR *dirp; |
| 692 | struct dirent *dp; |
| 693 | char *path; |
| 694 | int handle; |
| 695 | u_int32_t id; |
| 696 | |
| 697 | id = get_int(); |
| 698 | handle = get_handle(); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 699 | TRACE("readdir id %u handle %d", id, handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 700 | dirp = handle_to_dir(handle); |
| 701 | path = handle_to_name(handle); |
| 702 | if (dirp == NULL || path == NULL) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 703 | send_status(id, SSH2_FX_FAILURE); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 704 | } else { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 705 | struct stat st; |
| 706 | char pathname[1024]; |
| 707 | Stat *stats; |
| 708 | int nstats = 10, count = 0, i; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 709 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 710 | stats = xmalloc(nstats * sizeof(Stat)); |
| 711 | while ((dp = readdir(dirp)) != NULL) { |
| 712 | if (count >= nstats) { |
| 713 | nstats *= 2; |
| 714 | stats = xrealloc(stats, nstats * sizeof(Stat)); |
| 715 | } |
| 716 | /* XXX OVERFLOW ? */ |
Ben Lindstrom | 95148e3 | 2001-08-06 21:30:53 +0000 | [diff] [blame] | 717 | snprintf(pathname, sizeof pathname, "%s%s%s", path, |
| 718 | strcmp(path, "/") ? "/" : "", dp->d_name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 719 | if (lstat(pathname, &st) < 0) |
| 720 | continue; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 721 | stat_to_attrib(&st, &(stats[count].attrib)); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 722 | stats[count].name = xstrdup(dp->d_name); |
Damien Miller | e1a4981 | 2002-09-12 09:54:25 +1000 | [diff] [blame] | 723 | stats[count].long_name = ls_file(dp->d_name, &st, 0); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 724 | count++; |
| 725 | /* send up to 100 entries in one message */ |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 726 | /* XXX check packet size instead */ |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 727 | if (count == 100) |
| 728 | break; |
| 729 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 730 | if (count > 0) { |
| 731 | send_names(id, count, stats); |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 732 | for (i = 0; i < count; i++) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 733 | xfree(stats[i].name); |
| 734 | xfree(stats[i].long_name); |
| 735 | } |
| 736 | } else { |
| 737 | send_status(id, SSH2_FX_EOF); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 738 | } |
| 739 | xfree(stats); |
| 740 | } |
| 741 | } |
| 742 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 743 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 744 | process_remove(void) |
| 745 | { |
| 746 | char *name; |
| 747 | u_int32_t id; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 748 | int status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 749 | int ret; |
| 750 | |
| 751 | id = get_int(); |
| 752 | name = get_string(NULL); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 753 | TRACE("remove id %u name %s", id, name); |
Kevin Steves | a074feb | 2000-12-21 22:33:45 +0000 | [diff] [blame] | 754 | ret = unlink(name); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 755 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 756 | send_status(id, status); |
| 757 | xfree(name); |
| 758 | } |
| 759 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 760 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 761 | process_mkdir(void) |
| 762 | { |
| 763 | Attrib *a; |
| 764 | u_int32_t id; |
| 765 | char *name; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 766 | int ret, mode, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 767 | |
| 768 | id = get_int(); |
| 769 | name = get_string(NULL); |
| 770 | a = get_attrib(); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 771 | mode = (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ? |
| 772 | a->perm & 0777 : 0777; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 773 | TRACE("mkdir id %u name %s mode 0%o", id, name, mode); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 774 | ret = mkdir(name, mode); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 775 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 776 | send_status(id, status); |
| 777 | xfree(name); |
| 778 | } |
| 779 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 780 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 781 | process_rmdir(void) |
| 782 | { |
| 783 | u_int32_t id; |
| 784 | char *name; |
| 785 | int ret, status; |
| 786 | |
| 787 | id = get_int(); |
| 788 | name = get_string(NULL); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 789 | TRACE("rmdir id %u name %s", id, name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 790 | ret = rmdir(name); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 791 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 792 | send_status(id, status); |
| 793 | xfree(name); |
| 794 | } |
| 795 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 796 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 797 | process_realpath(void) |
| 798 | { |
| 799 | char resolvedname[MAXPATHLEN]; |
| 800 | u_int32_t id; |
| 801 | char *path; |
| 802 | |
| 803 | id = get_int(); |
| 804 | path = get_string(NULL); |
Ben Lindstrom | fa1b3d0 | 2000-12-10 01:55:37 +0000 | [diff] [blame] | 805 | if (path[0] == '\0') { |
| 806 | xfree(path); |
| 807 | path = xstrdup("."); |
| 808 | } |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 809 | TRACE("realpath id %u path %s", id, path); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 810 | if (realpath(path, resolvedname) == NULL) { |
| 811 | send_status(id, errno_to_portable(errno)); |
| 812 | } else { |
| 813 | Stat s; |
| 814 | attrib_clear(&s.attrib); |
| 815 | s.name = s.long_name = resolvedname; |
| 816 | send_names(id, 1, &s); |
| 817 | } |
| 818 | xfree(path); |
| 819 | } |
| 820 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 821 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 822 | process_rename(void) |
| 823 | { |
| 824 | u_int32_t id; |
| 825 | char *oldpath, *newpath; |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 826 | int status; |
Damien Miller | b3207e8 | 2003-03-26 16:01:11 +1100 | [diff] [blame] | 827 | struct stat sb; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 828 | |
| 829 | id = get_int(); |
| 830 | oldpath = get_string(NULL); |
| 831 | newpath = get_string(NULL); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 832 | TRACE("rename id %u old %s new %s", id, oldpath, newpath); |
Damien Miller | b3207e8 | 2003-03-26 16:01:11 +1100 | [diff] [blame] | 833 | status = SSH2_FX_FAILURE; |
| 834 | if (lstat(oldpath, &sb) == -1) |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 835 | status = errno_to_portable(errno); |
Damien Miller | b3207e8 | 2003-03-26 16:01:11 +1100 | [diff] [blame] | 836 | else if (S_ISREG(sb.st_mode)) { |
| 837 | /* Race-free rename of regular files */ |
Darren Tucker | aedc1d6 | 2004-06-25 17:06:02 +1000 | [diff] [blame] | 838 | if (link(oldpath, newpath) == -1) { |
Darren Tucker | e59b508 | 2004-06-28 16:01:19 +1000 | [diff] [blame] | 839 | if (errno == EOPNOTSUPP |
| 840 | #ifdef LINK_OPNOTSUPP_ERRNO |
| 841 | || errno == LINK_OPNOTSUPP_ERRNO |
| 842 | #endif |
| 843 | ) { |
Darren Tucker | aedc1d6 | 2004-06-25 17:06:02 +1000 | [diff] [blame] | 844 | struct stat st; |
| 845 | |
| 846 | /* |
| 847 | * fs doesn't support links, so fall back to |
| 848 | * stat+rename. This is racy. |
| 849 | */ |
| 850 | if (stat(newpath, &st) == -1) { |
| 851 | if (rename(oldpath, newpath) == -1) |
| 852 | status = |
| 853 | errno_to_portable(errno); |
| 854 | else |
| 855 | status = SSH2_FX_OK; |
| 856 | } |
| 857 | } else { |
| 858 | status = errno_to_portable(errno); |
| 859 | } |
| 860 | } else if (unlink(oldpath) == -1) { |
Damien Miller | b3207e8 | 2003-03-26 16:01:11 +1100 | [diff] [blame] | 861 | status = errno_to_portable(errno); |
| 862 | /* clean spare link */ |
| 863 | unlink(newpath); |
| 864 | } else |
| 865 | status = SSH2_FX_OK; |
| 866 | } else if (stat(newpath, &sb) == -1) { |
| 867 | if (rename(oldpath, newpath) == -1) |
| 868 | status = errno_to_portable(errno); |
| 869 | else |
| 870 | status = SSH2_FX_OK; |
| 871 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 872 | send_status(id, status); |
| 873 | xfree(oldpath); |
| 874 | xfree(newpath); |
| 875 | } |
| 876 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 877 | static void |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 878 | process_readlink(void) |
| 879 | { |
| 880 | u_int32_t id; |
Ben Lindstrom | abbb73d | 2001-05-17 03:14:57 +0000 | [diff] [blame] | 881 | int len; |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 882 | char buf[MAXPATHLEN]; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 883 | char *path; |
| 884 | |
| 885 | id = get_int(); |
| 886 | path = get_string(NULL); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 887 | TRACE("readlink id %u path %s", id, path); |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 888 | if ((len = readlink(path, buf, sizeof(buf) - 1)) == -1) |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 889 | send_status(id, errno_to_portable(errno)); |
| 890 | else { |
| 891 | Stat s; |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 892 | |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 893 | buf[len] = '\0'; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 894 | attrib_clear(&s.attrib); |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 895 | s.name = s.long_name = buf; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 896 | send_names(id, 1, &s); |
| 897 | } |
| 898 | xfree(path); |
| 899 | } |
| 900 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 901 | static void |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 902 | process_symlink(void) |
| 903 | { |
| 904 | u_int32_t id; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 905 | char *oldpath, *newpath; |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 906 | int ret, status; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 907 | |
| 908 | id = get_int(); |
| 909 | oldpath = get_string(NULL); |
| 910 | newpath = get_string(NULL); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 911 | TRACE("symlink id %u old %s new %s", id, oldpath, newpath); |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 912 | /* this will fail if 'newpath' exists */ |
| 913 | ret = symlink(oldpath, newpath); |
| 914 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 915 | send_status(id, status); |
| 916 | xfree(oldpath); |
| 917 | xfree(newpath); |
| 918 | } |
| 919 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 920 | static void |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 921 | process_extended(void) |
| 922 | { |
| 923 | u_int32_t id; |
| 924 | char *request; |
| 925 | |
| 926 | id = get_int(); |
| 927 | request = get_string(NULL); |
| 928 | send_status(id, SSH2_FX_OP_UNSUPPORTED); /* MUST */ |
| 929 | xfree(request); |
| 930 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 931 | |
| 932 | /* stolen from ssh-agent */ |
| 933 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 934 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 935 | process(void) |
| 936 | { |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 937 | u_int msg_len; |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 938 | u_int buf_len; |
| 939 | u_int consumed; |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 940 | u_int type; |
| 941 | u_char *cp; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 942 | |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 943 | buf_len = buffer_len(&iqueue); |
| 944 | if (buf_len < 5) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 945 | return; /* Incomplete message. */ |
Damien Miller | 708d21c | 2002-01-22 23:18:15 +1100 | [diff] [blame] | 946 | cp = buffer_ptr(&iqueue); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 947 | msg_len = GET_32BIT(cp); |
| 948 | if (msg_len > 256 * 1024) { |
| 949 | error("bad message "); |
| 950 | exit(11); |
| 951 | } |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 952 | if (buf_len < msg_len + 4) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 953 | return; |
| 954 | buffer_consume(&iqueue, 4); |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 955 | buf_len -= 4; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 956 | type = buffer_get_char(&iqueue); |
| 957 | switch (type) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 958 | case SSH2_FXP_INIT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 959 | process_init(); |
| 960 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 961 | case SSH2_FXP_OPEN: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 962 | process_open(); |
| 963 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 964 | case SSH2_FXP_CLOSE: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 965 | process_close(); |
| 966 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 967 | case SSH2_FXP_READ: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 968 | process_read(); |
| 969 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 970 | case SSH2_FXP_WRITE: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 971 | process_write(); |
| 972 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 973 | case SSH2_FXP_LSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 974 | process_lstat(); |
| 975 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 976 | case SSH2_FXP_FSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 977 | process_fstat(); |
| 978 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 979 | case SSH2_FXP_SETSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 980 | process_setstat(); |
| 981 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 982 | case SSH2_FXP_FSETSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 983 | process_fsetstat(); |
| 984 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 985 | case SSH2_FXP_OPENDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 986 | process_opendir(); |
| 987 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 988 | case SSH2_FXP_READDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 989 | process_readdir(); |
| 990 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 991 | case SSH2_FXP_REMOVE: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 992 | process_remove(); |
| 993 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 994 | case SSH2_FXP_MKDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 995 | process_mkdir(); |
| 996 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 997 | case SSH2_FXP_RMDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 998 | process_rmdir(); |
| 999 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1000 | case SSH2_FXP_REALPATH: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1001 | process_realpath(); |
| 1002 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1003 | case SSH2_FXP_STAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1004 | process_stat(); |
| 1005 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1006 | case SSH2_FXP_RENAME: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1007 | process_rename(); |
| 1008 | break; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1009 | case SSH2_FXP_READLINK: |
| 1010 | process_readlink(); |
| 1011 | break; |
| 1012 | case SSH2_FXP_SYMLINK: |
| 1013 | process_symlink(); |
| 1014 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1015 | case SSH2_FXP_EXTENDED: |
| 1016 | process_extended(); |
| 1017 | break; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1018 | default: |
| 1019 | error("Unknown message %d", type); |
| 1020 | break; |
| 1021 | } |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 1022 | /* discard the remaining bytes from the current packet */ |
| 1023 | if (buf_len < buffer_len(&iqueue)) |
| 1024 | fatal("iqueue grows"); |
| 1025 | consumed = buf_len - buffer_len(&iqueue); |
| 1026 | if (msg_len < consumed) |
| 1027 | fatal("msg_len %d < consumed %d", msg_len, consumed); |
| 1028 | if (msg_len > consumed) |
| 1029 | buffer_consume(&iqueue, msg_len - consumed); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1030 | } |
| 1031 | |
| 1032 | int |
| 1033 | main(int ac, char **av) |
| 1034 | { |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1035 | fd_set *rset, *wset; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1036 | int in, out, max; |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1037 | ssize_t len, olen, set_size; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1038 | |
Ben Lindstrom | c7f4ccd | 2001-03-15 00:09:15 +0000 | [diff] [blame] | 1039 | /* XXX should use getopt */ |
| 1040 | |
Damien Miller | 59d3d5b | 2003-08-22 09:34:41 +1000 | [diff] [blame] | 1041 | __progname = ssh_get_progname(av[0]); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1042 | handle_init(); |
| 1043 | |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 1044 | #ifdef DEBUG_SFTP_SERVER |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1045 | log_init("sftp-server", SYSLOG_LEVEL_DEBUG1, SYSLOG_FACILITY_AUTH, 0); |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 1046 | #endif |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1047 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1048 | in = dup(STDIN_FILENO); |
| 1049 | out = dup(STDOUT_FILENO); |
| 1050 | |
Damien Miller | 402b331 | 2001-04-14 00:28:42 +1000 | [diff] [blame] | 1051 | #ifdef HAVE_CYGWIN |
| 1052 | setmode(in, O_BINARY); |
| 1053 | setmode(out, O_BINARY); |
| 1054 | #endif |
| 1055 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1056 | max = 0; |
| 1057 | if (in > max) |
| 1058 | max = in; |
| 1059 | if (out > max) |
| 1060 | max = out; |
| 1061 | |
| 1062 | buffer_init(&iqueue); |
| 1063 | buffer_init(&oqueue); |
| 1064 | |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1065 | set_size = howmany(max + 1, NFDBITS) * sizeof(fd_mask); |
| 1066 | rset = (fd_set *)xmalloc(set_size); |
| 1067 | wset = (fd_set *)xmalloc(set_size); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1068 | |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1069 | for (;;) { |
| 1070 | memset(rset, 0, set_size); |
| 1071 | memset(wset, 0, set_size); |
| 1072 | |
| 1073 | FD_SET(in, rset); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1074 | olen = buffer_len(&oqueue); |
| 1075 | if (olen > 0) |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1076 | FD_SET(out, wset); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1077 | |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1078 | if (select(max+1, rset, wset, NULL, NULL) < 0) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1079 | if (errno == EINTR) |
| 1080 | continue; |
| 1081 | exit(2); |
| 1082 | } |
| 1083 | |
| 1084 | /* copy stdin to iqueue */ |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1085 | if (FD_ISSET(in, rset)) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1086 | char buf[4*4096]; |
| 1087 | len = read(in, buf, sizeof buf); |
| 1088 | if (len == 0) { |
| 1089 | debug("read eof"); |
| 1090 | exit(0); |
| 1091 | } else if (len < 0) { |
| 1092 | error("read error"); |
| 1093 | exit(1); |
| 1094 | } else { |
| 1095 | buffer_append(&iqueue, buf, len); |
| 1096 | } |
| 1097 | } |
| 1098 | /* send oqueue to stdout */ |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1099 | if (FD_ISSET(out, wset)) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1100 | len = write(out, buffer_ptr(&oqueue), olen); |
| 1101 | if (len < 0) { |
| 1102 | error("write error"); |
| 1103 | exit(1); |
| 1104 | } else { |
| 1105 | buffer_consume(&oqueue, len); |
| 1106 | } |
| 1107 | } |
| 1108 | /* process requests from client */ |
| 1109 | process(); |
| 1110 | } |
| 1111 | } |