Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1 | /* |
Damien Miller | 00c9217 | 2002-02-13 14:05:00 +1100 | [diff] [blame] | 2 | * Copyright (c) 2000, 2001, 2002 Markus Friedl. All rights reserved. |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
| 7 | * 1. Redistributions of source code must retain the above copyright |
| 8 | * notice, this list of conditions and the following disclaimer. |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer in the |
| 11 | * documentation and/or other materials provided with the distribution. |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 12 | * |
| 13 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 14 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 15 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 16 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 17 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 18 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 19 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 20 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 22 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 23 | */ |
| 24 | #include "includes.h" |
Damien Miller | d558092 | 2003-05-14 13:40:06 +1000 | [diff] [blame] | 25 | RCSID("$OpenBSD: sftp-server.c,v 1.42 2003/04/08 20:21:29 itojun Exp $"); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 26 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 27 | #include "buffer.h" |
| 28 | #include "bufaux.h" |
| 29 | #include "getput.h" |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 30 | #include "log.h" |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 31 | #include "xmalloc.h" |
| 32 | |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 33 | #include "sftp.h" |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 34 | #include "sftp-common.h" |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 35 | |
| 36 | /* helper */ |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 37 | #define get_int64() buffer_get_int64(&iqueue); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 38 | #define get_int() buffer_get_int(&iqueue); |
| 39 | #define get_string(lenp) buffer_get_string(&iqueue, lenp); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 40 | #define TRACE debug |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 41 | |
Ben Lindstrom | 49a79c0 | 2000-11-17 03:47:20 +0000 | [diff] [blame] | 42 | #ifdef HAVE___PROGNAME |
| 43 | extern char *__progname; |
| 44 | #else |
| 45 | char *__progname; |
| 46 | #endif |
| 47 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 48 | /* input and output queue */ |
| 49 | Buffer iqueue; |
| 50 | Buffer oqueue; |
| 51 | |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 52 | /* Version of client */ |
| 53 | int version; |
| 54 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 55 | /* portable attibutes, etc. */ |
| 56 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 57 | typedef struct Stat Stat; |
| 58 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 59 | struct Stat { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 60 | char *name; |
| 61 | char *long_name; |
| 62 | Attrib attrib; |
| 63 | }; |
| 64 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 65 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 66 | errno_to_portable(int unixerrno) |
| 67 | { |
| 68 | int ret = 0; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 69 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 70 | switch (unixerrno) { |
| 71 | case 0: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 72 | ret = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 73 | break; |
| 74 | case ENOENT: |
| 75 | case ENOTDIR: |
| 76 | case EBADF: |
| 77 | case ELOOP: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 78 | ret = SSH2_FX_NO_SUCH_FILE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 79 | break; |
| 80 | case EPERM: |
| 81 | case EACCES: |
| 82 | case EFAULT: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 83 | ret = SSH2_FX_PERMISSION_DENIED; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 84 | break; |
| 85 | case ENAMETOOLONG: |
| 86 | case EINVAL: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 87 | ret = SSH2_FX_BAD_MESSAGE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 88 | break; |
| 89 | default: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 90 | ret = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 91 | break; |
| 92 | } |
| 93 | return ret; |
| 94 | } |
| 95 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 96 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 97 | flags_from_portable(int pflags) |
| 98 | { |
| 99 | int flags = 0; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 100 | |
Ben Lindstrom | 3659251 | 2001-03-05 05:02:08 +0000 | [diff] [blame] | 101 | if ((pflags & SSH2_FXF_READ) && |
| 102 | (pflags & SSH2_FXF_WRITE)) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 103 | flags = O_RDWR; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 104 | } else if (pflags & SSH2_FXF_READ) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 105 | flags = O_RDONLY; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 106 | } else if (pflags & SSH2_FXF_WRITE) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 107 | flags = O_WRONLY; |
| 108 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 109 | if (pflags & SSH2_FXF_CREAT) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 110 | flags |= O_CREAT; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 111 | if (pflags & SSH2_FXF_TRUNC) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 112 | flags |= O_TRUNC; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 113 | if (pflags & SSH2_FXF_EXCL) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 114 | flags |= O_EXCL; |
| 115 | return flags; |
| 116 | } |
| 117 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 118 | static Attrib * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 119 | get_attrib(void) |
| 120 | { |
| 121 | return decode_attrib(&iqueue); |
| 122 | } |
| 123 | |
| 124 | /* handle handles */ |
| 125 | |
| 126 | typedef struct Handle Handle; |
| 127 | struct Handle { |
| 128 | int use; |
| 129 | DIR *dirp; |
| 130 | int fd; |
| 131 | char *name; |
| 132 | }; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 133 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 134 | enum { |
| 135 | HANDLE_UNUSED, |
| 136 | HANDLE_DIR, |
| 137 | HANDLE_FILE |
| 138 | }; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 139 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 140 | Handle handles[100]; |
| 141 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 142 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 143 | handle_init(void) |
| 144 | { |
| 145 | int i; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 146 | |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 147 | for (i = 0; i < sizeof(handles)/sizeof(Handle); i++) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 148 | handles[i].use = HANDLE_UNUSED; |
| 149 | } |
| 150 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 151 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 152 | handle_new(int use, char *name, int fd, DIR *dirp) |
| 153 | { |
| 154 | int i; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 155 | |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 156 | for (i = 0; i < sizeof(handles)/sizeof(Handle); i++) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 157 | if (handles[i].use == HANDLE_UNUSED) { |
| 158 | handles[i].use = use; |
| 159 | handles[i].dirp = dirp; |
| 160 | handles[i].fd = fd; |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 161 | handles[i].name = xstrdup(name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 162 | return i; |
| 163 | } |
| 164 | } |
| 165 | return -1; |
| 166 | } |
| 167 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 168 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 169 | handle_is_ok(int i, int type) |
| 170 | { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 171 | return i >= 0 && i < sizeof(handles)/sizeof(Handle) && |
| 172 | handles[i].use == type; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 173 | } |
| 174 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 175 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 176 | handle_to_string(int handle, char **stringp, int *hlenp) |
| 177 | { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 178 | if (stringp == NULL || hlenp == NULL) |
| 179 | return -1; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 180 | *stringp = xmalloc(sizeof(int32_t)); |
| 181 | PUT_32BIT(*stringp, handle); |
| 182 | *hlenp = sizeof(int32_t); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 183 | return 0; |
| 184 | } |
| 185 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 186 | static int |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 187 | handle_from_string(char *handle, u_int hlen) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 188 | { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 189 | int val; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 190 | |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 191 | if (hlen != sizeof(int32_t)) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 192 | return -1; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 193 | val = GET_32BIT(handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 194 | if (handle_is_ok(val, HANDLE_FILE) || |
| 195 | handle_is_ok(val, HANDLE_DIR)) |
| 196 | return val; |
| 197 | return -1; |
| 198 | } |
| 199 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 200 | static char * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 201 | handle_to_name(int handle) |
| 202 | { |
| 203 | if (handle_is_ok(handle, HANDLE_DIR)|| |
| 204 | handle_is_ok(handle, HANDLE_FILE)) |
| 205 | return handles[handle].name; |
| 206 | return NULL; |
| 207 | } |
| 208 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 209 | static DIR * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 210 | handle_to_dir(int handle) |
| 211 | { |
| 212 | if (handle_is_ok(handle, HANDLE_DIR)) |
| 213 | return handles[handle].dirp; |
| 214 | return NULL; |
| 215 | } |
| 216 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 217 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 218 | handle_to_fd(int handle) |
| 219 | { |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 220 | if (handle_is_ok(handle, HANDLE_FILE)) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 221 | return handles[handle].fd; |
| 222 | return -1; |
| 223 | } |
| 224 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 225 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 226 | handle_close(int handle) |
| 227 | { |
| 228 | int ret = -1; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 229 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 230 | if (handle_is_ok(handle, HANDLE_FILE)) { |
| 231 | ret = close(handles[handle].fd); |
| 232 | handles[handle].use = HANDLE_UNUSED; |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 233 | xfree(handles[handle].name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 234 | } else if (handle_is_ok(handle, HANDLE_DIR)) { |
| 235 | ret = closedir(handles[handle].dirp); |
| 236 | handles[handle].use = HANDLE_UNUSED; |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 237 | xfree(handles[handle].name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 238 | } else { |
| 239 | errno = ENOENT; |
| 240 | } |
| 241 | return ret; |
| 242 | } |
| 243 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 244 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 245 | get_handle(void) |
| 246 | { |
| 247 | char *handle; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 248 | int val = -1; |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 249 | u_int hlen; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 250 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 251 | handle = get_string(&hlen); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 252 | if (hlen < 256) |
| 253 | val = handle_from_string(handle, hlen); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 254 | xfree(handle); |
| 255 | return val; |
| 256 | } |
| 257 | |
| 258 | /* send replies */ |
| 259 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 260 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 261 | send_msg(Buffer *m) |
| 262 | { |
| 263 | int mlen = buffer_len(m); |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 264 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 265 | buffer_put_int(&oqueue, mlen); |
| 266 | buffer_append(&oqueue, buffer_ptr(m), mlen); |
| 267 | buffer_consume(m, mlen); |
| 268 | } |
| 269 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 270 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 271 | send_status(u_int32_t id, u_int32_t error) |
| 272 | { |
| 273 | Buffer msg; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 274 | const char *status_messages[] = { |
| 275 | "Success", /* SSH_FX_OK */ |
| 276 | "End of file", /* SSH_FX_EOF */ |
| 277 | "No such file", /* SSH_FX_NO_SUCH_FILE */ |
| 278 | "Permission denied", /* SSH_FX_PERMISSION_DENIED */ |
| 279 | "Failure", /* SSH_FX_FAILURE */ |
| 280 | "Bad message", /* SSH_FX_BAD_MESSAGE */ |
| 281 | "No connection", /* SSH_FX_NO_CONNECTION */ |
| 282 | "Connection lost", /* SSH_FX_CONNECTION_LOST */ |
| 283 | "Operation unsupported", /* SSH_FX_OP_UNSUPPORTED */ |
| 284 | "Unknown error" /* Others */ |
| 285 | }; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 286 | |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 287 | TRACE("sent status id %u error %u", id, error); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 288 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 289 | buffer_put_char(&msg, SSH2_FXP_STATUS); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 290 | buffer_put_int(&msg, id); |
| 291 | buffer_put_int(&msg, error); |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 292 | if (version >= 3) { |
Ben Lindstrom | a370005 | 2001-04-05 23:26:32 +0000 | [diff] [blame] | 293 | buffer_put_cstring(&msg, |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 294 | status_messages[MIN(error,SSH2_FX_MAX)]); |
| 295 | buffer_put_cstring(&msg, ""); |
| 296 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 297 | send_msg(&msg); |
| 298 | buffer_free(&msg); |
| 299 | } |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 300 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 301 | send_data_or_handle(char type, u_int32_t id, char *data, int dlen) |
| 302 | { |
| 303 | Buffer msg; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 304 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 305 | buffer_init(&msg); |
| 306 | buffer_put_char(&msg, type); |
| 307 | buffer_put_int(&msg, id); |
| 308 | buffer_put_string(&msg, data, dlen); |
| 309 | send_msg(&msg); |
| 310 | buffer_free(&msg); |
| 311 | } |
| 312 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 313 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 314 | send_data(u_int32_t id, char *data, int dlen) |
| 315 | { |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 316 | TRACE("sent data id %u len %d", id, dlen); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 317 | send_data_or_handle(SSH2_FXP_DATA, id, data, dlen); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 318 | } |
| 319 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 320 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 321 | send_handle(u_int32_t id, int handle) |
| 322 | { |
| 323 | char *string; |
| 324 | int hlen; |
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 | handle_to_string(handle, &string, &hlen); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 327 | TRACE("sent handle id %u handle %d", id, handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 328 | send_data_or_handle(SSH2_FXP_HANDLE, id, string, hlen); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 329 | xfree(string); |
| 330 | } |
| 331 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 332 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 333 | send_names(u_int32_t id, int count, Stat *stats) |
| 334 | { |
| 335 | Buffer msg; |
| 336 | int i; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 337 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 338 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 339 | buffer_put_char(&msg, SSH2_FXP_NAME); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 340 | buffer_put_int(&msg, id); |
| 341 | buffer_put_int(&msg, count); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 342 | TRACE("sent names id %u count %d", id, count); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 343 | for (i = 0; i < count; i++) { |
| 344 | buffer_put_cstring(&msg, stats[i].name); |
| 345 | buffer_put_cstring(&msg, stats[i].long_name); |
| 346 | encode_attrib(&msg, &stats[i].attrib); |
| 347 | } |
| 348 | send_msg(&msg); |
| 349 | buffer_free(&msg); |
| 350 | } |
| 351 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 352 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 353 | send_attrib(u_int32_t id, Attrib *a) |
| 354 | { |
| 355 | Buffer msg; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 356 | |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 357 | TRACE("sent attrib id %u have 0x%x", id, a->flags); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 358 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 359 | buffer_put_char(&msg, SSH2_FXP_ATTRS); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 360 | buffer_put_int(&msg, id); |
| 361 | encode_attrib(&msg, a); |
| 362 | send_msg(&msg); |
| 363 | buffer_free(&msg); |
| 364 | } |
| 365 | |
| 366 | /* parse incoming */ |
| 367 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 368 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 369 | process_init(void) |
| 370 | { |
| 371 | Buffer msg; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 372 | |
Ben Lindstrom | 937df1d | 2002-06-06 21:58:35 +0000 | [diff] [blame] | 373 | version = get_int(); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 374 | TRACE("client version %d", version); |
| 375 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 376 | buffer_put_char(&msg, SSH2_FXP_VERSION); |
| 377 | buffer_put_int(&msg, SSH2_FILEXFER_VERSION); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 378 | send_msg(&msg); |
| 379 | buffer_free(&msg); |
| 380 | } |
| 381 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 382 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 383 | process_open(void) |
| 384 | { |
| 385 | u_int32_t id, pflags; |
| 386 | Attrib *a; |
| 387 | char *name; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 388 | int handle, fd, flags, mode, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 389 | |
| 390 | id = get_int(); |
| 391 | name = get_string(NULL); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 392 | pflags = get_int(); /* portable flags */ |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 393 | a = get_attrib(); |
| 394 | flags = flags_from_portable(pflags); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 395 | mode = (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ? a->perm : 0666; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 396 | 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] | 397 | fd = open(name, flags, mode); |
| 398 | if (fd < 0) { |
| 399 | status = errno_to_portable(errno); |
| 400 | } else { |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 401 | handle = handle_new(HANDLE_FILE, name, fd, NULL); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 402 | if (handle < 0) { |
| 403 | close(fd); |
| 404 | } else { |
| 405 | send_handle(id, handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 406 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 407 | } |
| 408 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 409 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 410 | send_status(id, status); |
| 411 | xfree(name); |
| 412 | } |
| 413 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 414 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 415 | process_close(void) |
| 416 | { |
| 417 | u_int32_t id; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 418 | int handle, ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 419 | |
| 420 | id = get_int(); |
| 421 | handle = get_handle(); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 422 | TRACE("close id %u handle %d", id, handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 423 | ret = handle_close(handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 424 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 425 | send_status(id, status); |
| 426 | } |
| 427 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 428 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 429 | process_read(void) |
| 430 | { |
| 431 | char buf[64*1024]; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 432 | u_int32_t id, len; |
| 433 | int handle, fd, ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 434 | u_int64_t off; |
| 435 | |
| 436 | id = get_int(); |
| 437 | handle = get_handle(); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 438 | off = get_int64(); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 439 | len = get_int(); |
| 440 | |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 441 | TRACE("read id %u handle %d off %llu len %d", id, handle, |
Ben Lindstrom | 416d874 | 2001-02-25 02:02:43 +0000 | [diff] [blame] | 442 | (u_int64_t)off, len); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 443 | if (len > sizeof buf) { |
| 444 | len = sizeof buf; |
Damien Miller | 996acd2 | 2003-04-09 20:59:48 +1000 | [diff] [blame] | 445 | logit("read change len %d", len); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 446 | } |
| 447 | fd = handle_to_fd(handle); |
| 448 | if (fd >= 0) { |
| 449 | if (lseek(fd, off, SEEK_SET) < 0) { |
| 450 | error("process_read: seek failed"); |
| 451 | status = errno_to_portable(errno); |
| 452 | } else { |
| 453 | ret = read(fd, buf, len); |
| 454 | if (ret < 0) { |
| 455 | status = errno_to_portable(errno); |
| 456 | } else if (ret == 0) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 457 | status = SSH2_FX_EOF; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 458 | } else { |
| 459 | send_data(id, buf, ret); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 460 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 461 | } |
| 462 | } |
| 463 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 464 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 465 | send_status(id, status); |
| 466 | } |
| 467 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 468 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 469 | process_write(void) |
| 470 | { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 471 | u_int32_t id; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 472 | u_int64_t off; |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 473 | u_int len; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 474 | int handle, fd, ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 475 | char *data; |
| 476 | |
| 477 | id = get_int(); |
| 478 | handle = get_handle(); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 479 | off = get_int64(); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 480 | data = get_string(&len); |
| 481 | |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 482 | TRACE("write id %u handle %d off %llu len %d", id, handle, |
Ben Lindstrom | 416d874 | 2001-02-25 02:02:43 +0000 | [diff] [blame] | 483 | (u_int64_t)off, len); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 484 | fd = handle_to_fd(handle); |
| 485 | if (fd >= 0) { |
| 486 | if (lseek(fd, off, SEEK_SET) < 0) { |
| 487 | status = errno_to_portable(errno); |
| 488 | error("process_write: seek failed"); |
| 489 | } else { |
| 490 | /* XXX ATOMICIO ? */ |
| 491 | ret = write(fd, data, len); |
| 492 | if (ret == -1) { |
| 493 | error("process_write: write failed"); |
| 494 | status = errno_to_portable(errno); |
| 495 | } else if (ret == len) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 496 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 497 | } else { |
Damien Miller | 996acd2 | 2003-04-09 20:59:48 +1000 | [diff] [blame] | 498 | logit("nothing at all written"); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 499 | } |
| 500 | } |
| 501 | } |
| 502 | send_status(id, status); |
| 503 | xfree(data); |
| 504 | } |
| 505 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 506 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 507 | process_do_stat(int do_lstat) |
| 508 | { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 509 | Attrib a; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 510 | struct stat st; |
| 511 | u_int32_t id; |
| 512 | char *name; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 513 | int ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 514 | |
| 515 | id = get_int(); |
| 516 | name = get_string(NULL); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 517 | TRACE("%sstat id %u name %s", do_lstat ? "l" : "", id, name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 518 | ret = do_lstat ? lstat(name, &st) : stat(name, &st); |
| 519 | if (ret < 0) { |
| 520 | status = errno_to_portable(errno); |
| 521 | } else { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 522 | stat_to_attrib(&st, &a); |
| 523 | send_attrib(id, &a); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 524 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 525 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 526 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 527 | send_status(id, status); |
| 528 | xfree(name); |
| 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_stat(void) |
| 533 | { |
| 534 | process_do_stat(0); |
| 535 | } |
| 536 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 537 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 538 | process_lstat(void) |
| 539 | { |
| 540 | process_do_stat(1); |
| 541 | } |
| 542 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 543 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 544 | process_fstat(void) |
| 545 | { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 546 | Attrib a; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 547 | struct stat st; |
| 548 | u_int32_t id; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 549 | int fd, ret, handle, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 550 | |
| 551 | id = get_int(); |
| 552 | handle = get_handle(); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 553 | TRACE("fstat id %u handle %d", id, handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 554 | fd = handle_to_fd(handle); |
| 555 | if (fd >= 0) { |
| 556 | ret = fstat(fd, &st); |
| 557 | if (ret < 0) { |
| 558 | status = errno_to_portable(errno); |
| 559 | } else { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 560 | stat_to_attrib(&st, &a); |
| 561 | send_attrib(id, &a); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 562 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 563 | } |
| 564 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 565 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 566 | send_status(id, status); |
| 567 | } |
| 568 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 569 | static struct timeval * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 570 | attrib_to_tv(Attrib *a) |
| 571 | { |
| 572 | static struct timeval tv[2]; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 573 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 574 | tv[0].tv_sec = a->atime; |
| 575 | tv[0].tv_usec = 0; |
| 576 | tv[1].tv_sec = a->mtime; |
| 577 | tv[1].tv_usec = 0; |
| 578 | return tv; |
| 579 | } |
| 580 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 581 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 582 | process_setstat(void) |
| 583 | { |
| 584 | Attrib *a; |
| 585 | u_int32_t id; |
| 586 | char *name; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 587 | int status = SSH2_FX_OK, ret; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 588 | |
| 589 | id = get_int(); |
| 590 | name = get_string(NULL); |
| 591 | a = get_attrib(); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 592 | TRACE("setstat id %u name %s", id, name); |
Damien Miller | 00c9217 | 2002-02-13 14:05:00 +1100 | [diff] [blame] | 593 | if (a->flags & SSH2_FILEXFER_ATTR_SIZE) { |
| 594 | ret = truncate(name, a->size); |
| 595 | if (ret == -1) |
| 596 | status = errno_to_portable(errno); |
| 597 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 598 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 599 | ret = chmod(name, a->perm & 0777); |
| 600 | if (ret == -1) |
| 601 | status = errno_to_portable(errno); |
| 602 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 603 | if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 604 | ret = utimes(name, attrib_to_tv(a)); |
| 605 | if (ret == -1) |
| 606 | status = errno_to_portable(errno); |
| 607 | } |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 608 | if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) { |
| 609 | ret = chown(name, a->uid, a->gid); |
| 610 | if (ret == -1) |
| 611 | status = errno_to_portable(errno); |
| 612 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 613 | send_status(id, status); |
| 614 | xfree(name); |
| 615 | } |
| 616 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 617 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 618 | process_fsetstat(void) |
| 619 | { |
| 620 | Attrib *a; |
| 621 | u_int32_t id; |
| 622 | int handle, fd, ret; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 623 | int status = SSH2_FX_OK; |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 624 | char *name; |
Kevin Steves | f7ffab3 | 2001-01-24 20:11:06 +0000 | [diff] [blame] | 625 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 626 | id = get_int(); |
| 627 | handle = get_handle(); |
| 628 | a = get_attrib(); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 629 | TRACE("fsetstat id %u handle %d", id, handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 630 | fd = handle_to_fd(handle); |
| 631 | name = handle_to_name(handle); |
Kevin Steves | f7ffab3 | 2001-01-24 20:11:06 +0000 | [diff] [blame] | 632 | if (fd < 0 || name == NULL) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 633 | status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 634 | } else { |
Damien Miller | 00c9217 | 2002-02-13 14:05:00 +1100 | [diff] [blame] | 635 | if (a->flags & SSH2_FILEXFER_ATTR_SIZE) { |
| 636 | ret = ftruncate(fd, a->size); |
| 637 | if (ret == -1) |
| 638 | status = errno_to_portable(errno); |
| 639 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 640 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) { |
Ben Lindstrom | 200e3c9 | 2001-01-15 01:56:46 +0000 | [diff] [blame] | 641 | #ifdef HAVE_FCHMOD |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 642 | ret = fchmod(fd, a->perm & 0777); |
Ben Lindstrom | 200e3c9 | 2001-01-15 01:56:46 +0000 | [diff] [blame] | 643 | #else |
Kevin Steves | b6b37ba | 2001-01-24 20:01:44 +0000 | [diff] [blame] | 644 | ret = chmod(name, a->perm & 0777); |
Ben Lindstrom | 200e3c9 | 2001-01-15 01:56:46 +0000 | [diff] [blame] | 645 | #endif |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 646 | if (ret == -1) |
| 647 | status = errno_to_portable(errno); |
| 648 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 649 | if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 650 | #ifdef HAVE_FUTIMES |
| 651 | ret = futimes(fd, attrib_to_tv(a)); |
| 652 | #else |
| 653 | ret = utimes(name, attrib_to_tv(a)); |
| 654 | #endif |
| 655 | if (ret == -1) |
| 656 | status = errno_to_portable(errno); |
| 657 | } |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 658 | if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) { |
Ben Lindstrom | 34bb0c7 | 2001-02-13 02:40:56 +0000 | [diff] [blame] | 659 | #ifdef HAVE_FCHOWN |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 660 | ret = fchown(fd, a->uid, a->gid); |
Ben Lindstrom | 34bb0c7 | 2001-02-13 02:40:56 +0000 | [diff] [blame] | 661 | #else |
| 662 | ret = chown(name, a->uid, a->gid); |
| 663 | #endif |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 664 | if (ret == -1) |
| 665 | status = errno_to_portable(errno); |
| 666 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 667 | } |
| 668 | send_status(id, status); |
| 669 | } |
| 670 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 671 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 672 | process_opendir(void) |
| 673 | { |
| 674 | DIR *dirp = NULL; |
| 675 | char *path; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 676 | int handle, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 677 | u_int32_t id; |
| 678 | |
| 679 | id = get_int(); |
| 680 | path = get_string(NULL); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 681 | TRACE("opendir id %u path %s", id, path); |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 682 | dirp = opendir(path); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 683 | if (dirp == NULL) { |
| 684 | status = errno_to_portable(errno); |
| 685 | } else { |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 686 | handle = handle_new(HANDLE_DIR, path, 0, dirp); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 687 | if (handle < 0) { |
| 688 | closedir(dirp); |
| 689 | } else { |
| 690 | send_handle(id, handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 691 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 692 | } |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 693 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 694 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 695 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 696 | send_status(id, status); |
| 697 | xfree(path); |
| 698 | } |
| 699 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 700 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 701 | process_readdir(void) |
| 702 | { |
| 703 | DIR *dirp; |
| 704 | struct dirent *dp; |
| 705 | char *path; |
| 706 | int handle; |
| 707 | u_int32_t id; |
| 708 | |
| 709 | id = get_int(); |
| 710 | handle = get_handle(); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 711 | TRACE("readdir id %u handle %d", id, handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 712 | dirp = handle_to_dir(handle); |
| 713 | path = handle_to_name(handle); |
| 714 | if (dirp == NULL || path == NULL) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 715 | send_status(id, SSH2_FX_FAILURE); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 716 | } else { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 717 | struct stat st; |
| 718 | char pathname[1024]; |
| 719 | Stat *stats; |
| 720 | int nstats = 10, count = 0, i; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 721 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 722 | stats = xmalloc(nstats * sizeof(Stat)); |
| 723 | while ((dp = readdir(dirp)) != NULL) { |
| 724 | if (count >= nstats) { |
| 725 | nstats *= 2; |
| 726 | stats = xrealloc(stats, nstats * sizeof(Stat)); |
| 727 | } |
| 728 | /* XXX OVERFLOW ? */ |
Ben Lindstrom | 95148e3 | 2001-08-06 21:30:53 +0000 | [diff] [blame] | 729 | snprintf(pathname, sizeof pathname, "%s%s%s", path, |
| 730 | strcmp(path, "/") ? "/" : "", dp->d_name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 731 | if (lstat(pathname, &st) < 0) |
| 732 | continue; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 733 | stat_to_attrib(&st, &(stats[count].attrib)); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 734 | stats[count].name = xstrdup(dp->d_name); |
Damien Miller | e1a4981 | 2002-09-12 09:54:25 +1000 | [diff] [blame] | 735 | stats[count].long_name = ls_file(dp->d_name, &st, 0); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 736 | count++; |
| 737 | /* send up to 100 entries in one message */ |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 738 | /* XXX check packet size instead */ |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 739 | if (count == 100) |
| 740 | break; |
| 741 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 742 | if (count > 0) { |
| 743 | send_names(id, count, stats); |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 744 | for (i = 0; i < count; i++) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 745 | xfree(stats[i].name); |
| 746 | xfree(stats[i].long_name); |
| 747 | } |
| 748 | } else { |
| 749 | send_status(id, SSH2_FX_EOF); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 750 | } |
| 751 | xfree(stats); |
| 752 | } |
| 753 | } |
| 754 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 755 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 756 | process_remove(void) |
| 757 | { |
| 758 | char *name; |
| 759 | u_int32_t id; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 760 | int status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 761 | int ret; |
| 762 | |
| 763 | id = get_int(); |
| 764 | name = get_string(NULL); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 765 | TRACE("remove id %u name %s", id, name); |
Kevin Steves | a074feb | 2000-12-21 22:33:45 +0000 | [diff] [blame] | 766 | ret = unlink(name); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 767 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 768 | send_status(id, status); |
| 769 | xfree(name); |
| 770 | } |
| 771 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 772 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 773 | process_mkdir(void) |
| 774 | { |
| 775 | Attrib *a; |
| 776 | u_int32_t id; |
| 777 | char *name; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 778 | int ret, mode, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 779 | |
| 780 | id = get_int(); |
| 781 | name = get_string(NULL); |
| 782 | a = get_attrib(); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 783 | mode = (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ? |
| 784 | a->perm & 0777 : 0777; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 785 | TRACE("mkdir id %u name %s mode 0%o", id, name, mode); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 786 | ret = mkdir(name, mode); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 787 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 788 | send_status(id, status); |
| 789 | xfree(name); |
| 790 | } |
| 791 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 792 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 793 | process_rmdir(void) |
| 794 | { |
| 795 | u_int32_t id; |
| 796 | char *name; |
| 797 | int ret, status; |
| 798 | |
| 799 | id = get_int(); |
| 800 | name = get_string(NULL); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 801 | TRACE("rmdir id %u name %s", id, name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 802 | ret = rmdir(name); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 803 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 804 | send_status(id, status); |
| 805 | xfree(name); |
| 806 | } |
| 807 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 808 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 809 | process_realpath(void) |
| 810 | { |
| 811 | char resolvedname[MAXPATHLEN]; |
| 812 | u_int32_t id; |
| 813 | char *path; |
| 814 | |
| 815 | id = get_int(); |
| 816 | path = get_string(NULL); |
Ben Lindstrom | fa1b3d0 | 2000-12-10 01:55:37 +0000 | [diff] [blame] | 817 | if (path[0] == '\0') { |
| 818 | xfree(path); |
| 819 | path = xstrdup("."); |
| 820 | } |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 821 | TRACE("realpath id %u path %s", id, path); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 822 | if (realpath(path, resolvedname) == NULL) { |
| 823 | send_status(id, errno_to_portable(errno)); |
| 824 | } else { |
| 825 | Stat s; |
| 826 | attrib_clear(&s.attrib); |
| 827 | s.name = s.long_name = resolvedname; |
| 828 | send_names(id, 1, &s); |
| 829 | } |
| 830 | xfree(path); |
| 831 | } |
| 832 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 833 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 834 | process_rename(void) |
| 835 | { |
| 836 | u_int32_t id; |
| 837 | char *oldpath, *newpath; |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 838 | int status; |
Damien Miller | b3207e8 | 2003-03-26 16:01:11 +1100 | [diff] [blame] | 839 | struct stat sb; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 840 | |
| 841 | id = get_int(); |
| 842 | oldpath = get_string(NULL); |
| 843 | newpath = get_string(NULL); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 844 | TRACE("rename id %u old %s new %s", id, oldpath, newpath); |
Damien Miller | b3207e8 | 2003-03-26 16:01:11 +1100 | [diff] [blame] | 845 | status = SSH2_FX_FAILURE; |
| 846 | if (lstat(oldpath, &sb) == -1) |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 847 | status = errno_to_portable(errno); |
Damien Miller | b3207e8 | 2003-03-26 16:01:11 +1100 | [diff] [blame] | 848 | else if (S_ISREG(sb.st_mode)) { |
| 849 | /* Race-free rename of regular files */ |
| 850 | if (link(oldpath, newpath) == -1) |
| 851 | status = errno_to_portable(errno); |
| 852 | else if (unlink(oldpath) == -1) { |
| 853 | status = errno_to_portable(errno); |
| 854 | /* clean spare link */ |
| 855 | unlink(newpath); |
| 856 | } else |
| 857 | status = SSH2_FX_OK; |
| 858 | } else if (stat(newpath, &sb) == -1) { |
| 859 | if (rename(oldpath, newpath) == -1) |
| 860 | status = errno_to_portable(errno); |
| 861 | else |
| 862 | status = SSH2_FX_OK; |
| 863 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 864 | send_status(id, status); |
| 865 | xfree(oldpath); |
| 866 | xfree(newpath); |
| 867 | } |
| 868 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 869 | static void |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 870 | process_readlink(void) |
| 871 | { |
| 872 | u_int32_t id; |
Ben Lindstrom | abbb73d | 2001-05-17 03:14:57 +0000 | [diff] [blame] | 873 | int len; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 874 | char link[MAXPATHLEN]; |
| 875 | char *path; |
| 876 | |
| 877 | id = get_int(); |
| 878 | path = get_string(NULL); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 879 | TRACE("readlink id %u path %s", id, path); |
Ben Lindstrom | abbb73d | 2001-05-17 03:14:57 +0000 | [diff] [blame] | 880 | if ((len = readlink(path, link, sizeof(link) - 1)) == -1) |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 881 | send_status(id, errno_to_portable(errno)); |
| 882 | else { |
| 883 | Stat s; |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 884 | |
Ben Lindstrom | abbb73d | 2001-05-17 03:14:57 +0000 | [diff] [blame] | 885 | link[len] = '\0'; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 886 | attrib_clear(&s.attrib); |
| 887 | s.name = s.long_name = link; |
| 888 | send_names(id, 1, &s); |
| 889 | } |
| 890 | xfree(path); |
| 891 | } |
| 892 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 893 | static void |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 894 | process_symlink(void) |
| 895 | { |
| 896 | u_int32_t id; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 897 | char *oldpath, *newpath; |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 898 | int ret, status; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 899 | |
| 900 | id = get_int(); |
| 901 | oldpath = get_string(NULL); |
| 902 | newpath = get_string(NULL); |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 903 | TRACE("symlink id %u old %s new %s", id, oldpath, newpath); |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 904 | /* this will fail if 'newpath' exists */ |
| 905 | ret = symlink(oldpath, newpath); |
| 906 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 907 | send_status(id, status); |
| 908 | xfree(oldpath); |
| 909 | xfree(newpath); |
| 910 | } |
| 911 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 912 | static void |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 913 | process_extended(void) |
| 914 | { |
| 915 | u_int32_t id; |
| 916 | char *request; |
| 917 | |
| 918 | id = get_int(); |
| 919 | request = get_string(NULL); |
| 920 | send_status(id, SSH2_FX_OP_UNSUPPORTED); /* MUST */ |
| 921 | xfree(request); |
| 922 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 923 | |
| 924 | /* stolen from ssh-agent */ |
| 925 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 926 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 927 | process(void) |
| 928 | { |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 929 | u_int msg_len; |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 930 | u_int buf_len; |
| 931 | u_int consumed; |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 932 | u_int type; |
| 933 | u_char *cp; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 934 | |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 935 | buf_len = buffer_len(&iqueue); |
| 936 | if (buf_len < 5) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 937 | return; /* Incomplete message. */ |
Damien Miller | 708d21c | 2002-01-22 23:18:15 +1100 | [diff] [blame] | 938 | cp = buffer_ptr(&iqueue); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 939 | msg_len = GET_32BIT(cp); |
| 940 | if (msg_len > 256 * 1024) { |
| 941 | error("bad message "); |
| 942 | exit(11); |
| 943 | } |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 944 | if (buf_len < msg_len + 4) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 945 | return; |
| 946 | buffer_consume(&iqueue, 4); |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 947 | buf_len -= 4; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 948 | type = buffer_get_char(&iqueue); |
| 949 | switch (type) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 950 | case SSH2_FXP_INIT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 951 | process_init(); |
| 952 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 953 | case SSH2_FXP_OPEN: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 954 | process_open(); |
| 955 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 956 | case SSH2_FXP_CLOSE: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 957 | process_close(); |
| 958 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 959 | case SSH2_FXP_READ: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 960 | process_read(); |
| 961 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 962 | case SSH2_FXP_WRITE: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 963 | process_write(); |
| 964 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 965 | case SSH2_FXP_LSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 966 | process_lstat(); |
| 967 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 968 | case SSH2_FXP_FSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 969 | process_fstat(); |
| 970 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 971 | case SSH2_FXP_SETSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 972 | process_setstat(); |
| 973 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 974 | case SSH2_FXP_FSETSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 975 | process_fsetstat(); |
| 976 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 977 | case SSH2_FXP_OPENDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 978 | process_opendir(); |
| 979 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 980 | case SSH2_FXP_READDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 981 | process_readdir(); |
| 982 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 983 | case SSH2_FXP_REMOVE: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 984 | process_remove(); |
| 985 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 986 | case SSH2_FXP_MKDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 987 | process_mkdir(); |
| 988 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 989 | case SSH2_FXP_RMDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 990 | process_rmdir(); |
| 991 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 992 | case SSH2_FXP_REALPATH: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 993 | process_realpath(); |
| 994 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 995 | case SSH2_FXP_STAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 996 | process_stat(); |
| 997 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 998 | case SSH2_FXP_RENAME: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 999 | process_rename(); |
| 1000 | break; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1001 | case SSH2_FXP_READLINK: |
| 1002 | process_readlink(); |
| 1003 | break; |
| 1004 | case SSH2_FXP_SYMLINK: |
| 1005 | process_symlink(); |
| 1006 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1007 | case SSH2_FXP_EXTENDED: |
| 1008 | process_extended(); |
| 1009 | break; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1010 | default: |
| 1011 | error("Unknown message %d", type); |
| 1012 | break; |
| 1013 | } |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 1014 | /* discard the remaining bytes from the current packet */ |
| 1015 | if (buf_len < buffer_len(&iqueue)) |
| 1016 | fatal("iqueue grows"); |
| 1017 | consumed = buf_len - buffer_len(&iqueue); |
| 1018 | if (msg_len < consumed) |
| 1019 | fatal("msg_len %d < consumed %d", msg_len, consumed); |
| 1020 | if (msg_len > consumed) |
| 1021 | buffer_consume(&iqueue, msg_len - consumed); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1022 | } |
| 1023 | |
| 1024 | int |
| 1025 | main(int ac, char **av) |
| 1026 | { |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1027 | fd_set *rset, *wset; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1028 | int in, out, max; |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1029 | ssize_t len, olen, set_size; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1030 | |
Ben Lindstrom | c7f4ccd | 2001-03-15 00:09:15 +0000 | [diff] [blame] | 1031 | /* XXX should use getopt */ |
| 1032 | |
Ben Lindstrom | 49a79c0 | 2000-11-17 03:47:20 +0000 | [diff] [blame] | 1033 | __progname = get_progname(av[0]); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1034 | handle_init(); |
| 1035 | |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 1036 | #ifdef DEBUG_SFTP_SERVER |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1037 | log_init("sftp-server", SYSLOG_LEVEL_DEBUG1, SYSLOG_FACILITY_AUTH, 0); |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 1038 | #endif |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1039 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1040 | in = dup(STDIN_FILENO); |
| 1041 | out = dup(STDOUT_FILENO); |
| 1042 | |
Damien Miller | 402b331 | 2001-04-14 00:28:42 +1000 | [diff] [blame] | 1043 | #ifdef HAVE_CYGWIN |
| 1044 | setmode(in, O_BINARY); |
| 1045 | setmode(out, O_BINARY); |
| 1046 | #endif |
| 1047 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1048 | max = 0; |
| 1049 | if (in > max) |
| 1050 | max = in; |
| 1051 | if (out > max) |
| 1052 | max = out; |
| 1053 | |
| 1054 | buffer_init(&iqueue); |
| 1055 | buffer_init(&oqueue); |
| 1056 | |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1057 | set_size = howmany(max + 1, NFDBITS) * sizeof(fd_mask); |
| 1058 | rset = (fd_set *)xmalloc(set_size); |
| 1059 | wset = (fd_set *)xmalloc(set_size); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1060 | |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1061 | for (;;) { |
| 1062 | memset(rset, 0, set_size); |
| 1063 | memset(wset, 0, set_size); |
| 1064 | |
| 1065 | FD_SET(in, rset); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1066 | olen = buffer_len(&oqueue); |
| 1067 | if (olen > 0) |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1068 | FD_SET(out, wset); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1069 | |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1070 | if (select(max+1, rset, wset, NULL, NULL) < 0) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1071 | if (errno == EINTR) |
| 1072 | continue; |
| 1073 | exit(2); |
| 1074 | } |
| 1075 | |
| 1076 | /* copy stdin to iqueue */ |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1077 | if (FD_ISSET(in, rset)) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1078 | char buf[4*4096]; |
| 1079 | len = read(in, buf, sizeof buf); |
| 1080 | if (len == 0) { |
| 1081 | debug("read eof"); |
| 1082 | exit(0); |
| 1083 | } else if (len < 0) { |
| 1084 | error("read error"); |
| 1085 | exit(1); |
| 1086 | } else { |
| 1087 | buffer_append(&iqueue, buf, len); |
| 1088 | } |
| 1089 | } |
| 1090 | /* send oqueue to stdout */ |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1091 | if (FD_ISSET(out, wset)) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1092 | len = write(out, buffer_ptr(&oqueue), olen); |
| 1093 | if (len < 0) { |
| 1094 | error("write error"); |
| 1095 | exit(1); |
| 1096 | } else { |
| 1097 | buffer_consume(&oqueue, len); |
| 1098 | } |
| 1099 | } |
| 1100 | /* process requests from client */ |
| 1101 | process(); |
| 1102 | } |
| 1103 | } |