Damien Miller | e3476ed | 2006-07-24 14:13:33 +1000 | [diff] [blame^] | 1 | /* $OpenBSD: sftp-server.c,v 1.65 2006/07/22 20:48:23 stevesk Exp $ */ |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 2 | /* |
Darren Tucker | 37bd366 | 2004-02-24 09:19:15 +1100 | [diff] [blame] | 3 | * Copyright (c) 2000-2004 Markus Friedl. All rights reserved. |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 4 | * |
Darren Tucker | 37bd366 | 2004-02-24 09:19:15 +1100 | [diff] [blame] | 5 | * Permission to use, copy, modify, and distribute this software for any |
| 6 | * purpose with or without fee is hereby granted, provided that the above |
| 7 | * copyright notice and this permission notice appear in all copies. |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 8 | * |
Darren Tucker | 37bd366 | 2004-02-24 09:19:15 +1100 | [diff] [blame] | 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 16 | */ |
| 17 | #include "includes.h" |
Damien Miller | f17883e | 2006-03-15 11:45:54 +1100 | [diff] [blame] | 18 | |
| 19 | #include <sys/types.h> |
| 20 | #include <sys/stat.h> |
Damien Miller | 88f254b | 2006-03-15 11:25:13 +1100 | [diff] [blame] | 21 | |
| 22 | #include <dirent.h> |
Darren Tucker | 3997249 | 2006-07-12 22:22:46 +1000 | [diff] [blame] | 23 | #include <errno.h> |
Damien Miller | 57cf638 | 2006-07-10 21:13:46 +1000 | [diff] [blame] | 24 | #include <fcntl.h> |
Damien Miller | 9f2abc4 | 2006-07-10 20:53:08 +1000 | [diff] [blame] | 25 | #include <pwd.h> |
Damien Miller | e3476ed | 2006-07-24 14:13:33 +1000 | [diff] [blame^] | 26 | #include <string.h> |
Damien Miller | 5598b4f | 2006-07-24 14:09:40 +1000 | [diff] [blame] | 27 | #include <time.h> |
Damien Miller | e3476ed | 2006-07-24 14:13:33 +1000 | [diff] [blame^] | 28 | #include <unistd.h> |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 29 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 30 | #include "buffer.h" |
| 31 | #include "bufaux.h" |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 32 | #include "log.h" |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 33 | #include "xmalloc.h" |
Darren Tucker | ce321d8 | 2005-10-03 18:11:24 +1000 | [diff] [blame] | 34 | #include "misc.h" |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 35 | #include "uidswap.h" |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 36 | |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 37 | #include "sftp.h" |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 38 | #include "sftp-common.h" |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 39 | |
| 40 | /* helper */ |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 41 | #define get_int64() buffer_get_int64(&iqueue); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 42 | #define get_int() buffer_get_int(&iqueue); |
| 43 | #define get_string(lenp) buffer_get_string(&iqueue, lenp); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 44 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 45 | /* Our verbosity */ |
| 46 | LogLevel log_level = SYSLOG_LEVEL_ERROR; |
| 47 | |
| 48 | /* Our client */ |
| 49 | struct passwd *pw = NULL; |
| 50 | char *client_addr = NULL; |
Ben Lindstrom | 49a79c0 | 2000-11-17 03:47:20 +0000 | [diff] [blame] | 51 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 52 | /* input and output queue */ |
| 53 | Buffer iqueue; |
| 54 | Buffer oqueue; |
| 55 | |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 56 | /* Version of client */ |
| 57 | int version; |
| 58 | |
Darren Tucker | a6612d4 | 2003-06-28 12:39:03 +1000 | [diff] [blame] | 59 | /* portable attributes, etc. */ |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 60 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 61 | typedef struct Stat Stat; |
| 62 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 63 | struct Stat { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 64 | char *name; |
| 65 | char *long_name; |
| 66 | Attrib attrib; |
| 67 | }; |
| 68 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 69 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 70 | errno_to_portable(int unixerrno) |
| 71 | { |
| 72 | int ret = 0; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 73 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 74 | switch (unixerrno) { |
| 75 | case 0: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 76 | ret = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 77 | break; |
| 78 | case ENOENT: |
| 79 | case ENOTDIR: |
| 80 | case EBADF: |
| 81 | case ELOOP: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 82 | ret = SSH2_FX_NO_SUCH_FILE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 83 | break; |
| 84 | case EPERM: |
| 85 | case EACCES: |
| 86 | case EFAULT: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 87 | ret = SSH2_FX_PERMISSION_DENIED; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 88 | break; |
| 89 | case ENAMETOOLONG: |
| 90 | case EINVAL: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 91 | ret = SSH2_FX_BAD_MESSAGE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 92 | break; |
| 93 | default: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 94 | ret = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 95 | break; |
| 96 | } |
| 97 | return ret; |
| 98 | } |
| 99 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 100 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 101 | flags_from_portable(int pflags) |
| 102 | { |
| 103 | int flags = 0; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 104 | |
Ben Lindstrom | 3659251 | 2001-03-05 05:02:08 +0000 | [diff] [blame] | 105 | if ((pflags & SSH2_FXF_READ) && |
| 106 | (pflags & SSH2_FXF_WRITE)) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 107 | flags = O_RDWR; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 108 | } else if (pflags & SSH2_FXF_READ) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 109 | flags = O_RDONLY; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 110 | } else if (pflags & SSH2_FXF_WRITE) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 111 | flags = O_WRONLY; |
| 112 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 113 | if (pflags & SSH2_FXF_CREAT) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 114 | flags |= O_CREAT; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 115 | if (pflags & SSH2_FXF_TRUNC) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 116 | flags |= O_TRUNC; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 117 | if (pflags & SSH2_FXF_EXCL) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 118 | flags |= O_EXCL; |
| 119 | return flags; |
| 120 | } |
| 121 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 122 | static const char * |
| 123 | string_from_portable(int pflags) |
| 124 | { |
| 125 | static char ret[128]; |
| 126 | |
| 127 | *ret = '\0'; |
| 128 | |
| 129 | #define PAPPEND(str) { \ |
| 130 | if (*ret != '\0') \ |
| 131 | strlcat(ret, ",", sizeof(ret)); \ |
| 132 | strlcat(ret, str, sizeof(ret)); \ |
| 133 | } |
| 134 | |
| 135 | if (pflags & SSH2_FXF_READ) |
| 136 | PAPPEND("READ") |
| 137 | if (pflags & SSH2_FXF_WRITE) |
| 138 | PAPPEND("WRITE") |
| 139 | if (pflags & SSH2_FXF_CREAT) |
| 140 | PAPPEND("CREATE") |
| 141 | if (pflags & SSH2_FXF_TRUNC) |
| 142 | PAPPEND("TRUNCATE") |
| 143 | if (pflags & SSH2_FXF_EXCL) |
| 144 | PAPPEND("EXCL") |
| 145 | |
| 146 | return ret; |
| 147 | } |
| 148 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 149 | static Attrib * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 150 | get_attrib(void) |
| 151 | { |
| 152 | return decode_attrib(&iqueue); |
| 153 | } |
| 154 | |
| 155 | /* handle handles */ |
| 156 | |
| 157 | typedef struct Handle Handle; |
| 158 | struct Handle { |
| 159 | int use; |
| 160 | DIR *dirp; |
| 161 | int fd; |
| 162 | char *name; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 163 | u_int64_t bytes_read, bytes_write; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 164 | }; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 165 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 166 | enum { |
| 167 | HANDLE_UNUSED, |
| 168 | HANDLE_DIR, |
| 169 | HANDLE_FILE |
| 170 | }; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 171 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 172 | Handle handles[100]; |
| 173 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 174 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 175 | handle_init(void) |
| 176 | { |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 177 | u_int i; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 178 | |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 179 | for (i = 0; i < sizeof(handles)/sizeof(Handle); i++) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 180 | handles[i].use = HANDLE_UNUSED; |
| 181 | } |
| 182 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 183 | static int |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 184 | handle_new(int use, const char *name, int fd, DIR *dirp) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 185 | { |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 186 | u_int i; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 187 | |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 188 | for (i = 0; i < sizeof(handles)/sizeof(Handle); i++) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 189 | if (handles[i].use == HANDLE_UNUSED) { |
| 190 | handles[i].use = use; |
| 191 | handles[i].dirp = dirp; |
| 192 | handles[i].fd = fd; |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 193 | handles[i].name = xstrdup(name); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 194 | handles[i].bytes_read = handles[i].bytes_write = 0; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 195 | return i; |
| 196 | } |
| 197 | } |
| 198 | return -1; |
| 199 | } |
| 200 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 201 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 202 | handle_is_ok(int i, int type) |
| 203 | { |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 204 | return i >= 0 && (u_int)i < sizeof(handles)/sizeof(Handle) && |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 205 | handles[i].use == type; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 206 | } |
| 207 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 208 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 209 | handle_to_string(int handle, char **stringp, int *hlenp) |
| 210 | { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 211 | if (stringp == NULL || hlenp == NULL) |
| 212 | return -1; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 213 | *stringp = xmalloc(sizeof(int32_t)); |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 214 | put_u32(*stringp, handle); |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 215 | *hlenp = sizeof(int32_t); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 216 | return 0; |
| 217 | } |
| 218 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 219 | static int |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 220 | handle_from_string(const char *handle, u_int hlen) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 221 | { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 222 | int val; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 223 | |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 224 | if (hlen != sizeof(int32_t)) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 225 | return -1; |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 226 | val = get_u32(handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 227 | if (handle_is_ok(val, HANDLE_FILE) || |
| 228 | handle_is_ok(val, HANDLE_DIR)) |
| 229 | return val; |
| 230 | return -1; |
| 231 | } |
| 232 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 233 | static char * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 234 | handle_to_name(int handle) |
| 235 | { |
| 236 | if (handle_is_ok(handle, HANDLE_DIR)|| |
| 237 | handle_is_ok(handle, HANDLE_FILE)) |
| 238 | return handles[handle].name; |
| 239 | return NULL; |
| 240 | } |
| 241 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 242 | static DIR * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 243 | handle_to_dir(int handle) |
| 244 | { |
| 245 | if (handle_is_ok(handle, HANDLE_DIR)) |
| 246 | return handles[handle].dirp; |
| 247 | return NULL; |
| 248 | } |
| 249 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 250 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 251 | handle_to_fd(int handle) |
| 252 | { |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 253 | if (handle_is_ok(handle, HANDLE_FILE)) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 254 | return handles[handle].fd; |
| 255 | return -1; |
| 256 | } |
| 257 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 258 | static void |
| 259 | handle_update_read(int handle, ssize_t bytes) |
| 260 | { |
| 261 | if (handle_is_ok(handle, HANDLE_FILE) && bytes > 0) |
| 262 | handles[handle].bytes_read += bytes; |
| 263 | } |
| 264 | |
| 265 | static void |
| 266 | handle_update_write(int handle, ssize_t bytes) |
| 267 | { |
| 268 | if (handle_is_ok(handle, HANDLE_FILE) && bytes > 0) |
| 269 | handles[handle].bytes_write += bytes; |
| 270 | } |
| 271 | |
| 272 | static u_int64_t |
| 273 | handle_bytes_read(int handle) |
| 274 | { |
| 275 | if (handle_is_ok(handle, HANDLE_FILE)) |
| 276 | return (handles[handle].bytes_read); |
| 277 | return 0; |
| 278 | } |
| 279 | |
| 280 | static u_int64_t |
| 281 | handle_bytes_write(int handle) |
| 282 | { |
| 283 | if (handle_is_ok(handle, HANDLE_FILE)) |
| 284 | return (handles[handle].bytes_write); |
| 285 | return 0; |
| 286 | } |
| 287 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 288 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 289 | handle_close(int handle) |
| 290 | { |
| 291 | int ret = -1; |
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 | if (handle_is_ok(handle, HANDLE_FILE)) { |
| 294 | ret = close(handles[handle].fd); |
| 295 | handles[handle].use = HANDLE_UNUSED; |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 296 | xfree(handles[handle].name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 297 | } else if (handle_is_ok(handle, HANDLE_DIR)) { |
| 298 | ret = closedir(handles[handle].dirp); |
| 299 | handles[handle].use = HANDLE_UNUSED; |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 300 | xfree(handles[handle].name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 301 | } else { |
| 302 | errno = ENOENT; |
| 303 | } |
| 304 | return ret; |
| 305 | } |
| 306 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 307 | static void |
| 308 | handle_log_close(int handle, char *emsg) |
| 309 | { |
| 310 | if (handle_is_ok(handle, HANDLE_FILE)) { |
| 311 | logit("%s%sclose \"%s\" bytes read %llu written %llu", |
| 312 | emsg == NULL ? "" : emsg, emsg == NULL ? "" : " ", |
| 313 | handle_to_name(handle), |
| 314 | handle_bytes_read(handle), handle_bytes_write(handle)); |
| 315 | } else { |
| 316 | logit("%s%sclosedir \"%s\"", |
| 317 | emsg == NULL ? "" : emsg, emsg == NULL ? "" : " ", |
| 318 | handle_to_name(handle)); |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | static void |
| 323 | handle_log_exit(void) |
| 324 | { |
| 325 | u_int i; |
| 326 | |
| 327 | for (i = 0; i < sizeof(handles)/sizeof(Handle); i++) |
| 328 | if (handles[i].use != HANDLE_UNUSED) |
| 329 | handle_log_close(i, "forced"); |
| 330 | } |
| 331 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 332 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 333 | get_handle(void) |
| 334 | { |
| 335 | char *handle; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 336 | int val = -1; |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 337 | u_int hlen; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 338 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 339 | handle = get_string(&hlen); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 340 | if (hlen < 256) |
| 341 | val = handle_from_string(handle, hlen); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 342 | xfree(handle); |
| 343 | return val; |
| 344 | } |
| 345 | |
| 346 | /* send replies */ |
| 347 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 348 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 349 | send_msg(Buffer *m) |
| 350 | { |
| 351 | int mlen = buffer_len(m); |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 352 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 353 | buffer_put_int(&oqueue, mlen); |
| 354 | buffer_append(&oqueue, buffer_ptr(m), mlen); |
| 355 | buffer_consume(m, mlen); |
| 356 | } |
| 357 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 358 | static const char * |
| 359 | status_to_message(u_int32_t status) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 360 | { |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 361 | const char *status_messages[] = { |
| 362 | "Success", /* SSH_FX_OK */ |
| 363 | "End of file", /* SSH_FX_EOF */ |
| 364 | "No such file", /* SSH_FX_NO_SUCH_FILE */ |
| 365 | "Permission denied", /* SSH_FX_PERMISSION_DENIED */ |
| 366 | "Failure", /* SSH_FX_FAILURE */ |
| 367 | "Bad message", /* SSH_FX_BAD_MESSAGE */ |
| 368 | "No connection", /* SSH_FX_NO_CONNECTION */ |
| 369 | "Connection lost", /* SSH_FX_CONNECTION_LOST */ |
| 370 | "Operation unsupported", /* SSH_FX_OP_UNSUPPORTED */ |
| 371 | "Unknown error" /* Others */ |
| 372 | }; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 373 | return (status_messages[MIN(status,SSH2_FX_MAX)]); |
| 374 | } |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 375 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 376 | static void |
| 377 | send_status(u_int32_t id, u_int32_t status) |
| 378 | { |
| 379 | Buffer msg; |
| 380 | |
| 381 | debug3("request %u: sent status %u", id, status); |
| 382 | if (log_level > SYSLOG_LEVEL_VERBOSE || |
| 383 | (status != SSH2_FX_OK && status != SSH2_FX_EOF)) |
| 384 | logit("sent status %s", status_to_message(status)); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 385 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 386 | buffer_put_char(&msg, SSH2_FXP_STATUS); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 387 | buffer_put_int(&msg, id); |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 388 | buffer_put_int(&msg, status); |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 389 | if (version >= 3) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 390 | buffer_put_cstring(&msg, status_to_message(status)); |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 391 | buffer_put_cstring(&msg, ""); |
| 392 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 393 | send_msg(&msg); |
| 394 | buffer_free(&msg); |
| 395 | } |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 396 | static void |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 397 | 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] | 398 | { |
| 399 | Buffer msg; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 400 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 401 | buffer_init(&msg); |
| 402 | buffer_put_char(&msg, type); |
| 403 | buffer_put_int(&msg, id); |
| 404 | buffer_put_string(&msg, data, dlen); |
| 405 | send_msg(&msg); |
| 406 | buffer_free(&msg); |
| 407 | } |
| 408 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 409 | static void |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 410 | send_data(u_int32_t id, const char *data, int dlen) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 411 | { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 412 | debug("request %u: sent data len %d", id, dlen); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 413 | send_data_or_handle(SSH2_FXP_DATA, id, data, dlen); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 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 | send_handle(u_int32_t id, int handle) |
| 418 | { |
| 419 | char *string; |
| 420 | int hlen; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 421 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 422 | handle_to_string(handle, &string, &hlen); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 423 | debug("request %u: sent handle handle %d", id, handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 424 | send_data_or_handle(SSH2_FXP_HANDLE, id, string, hlen); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 425 | xfree(string); |
| 426 | } |
| 427 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 428 | static void |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 429 | send_names(u_int32_t id, int count, const Stat *stats) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 430 | { |
| 431 | Buffer msg; |
| 432 | int i; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 433 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 434 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 435 | buffer_put_char(&msg, SSH2_FXP_NAME); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 436 | buffer_put_int(&msg, id); |
| 437 | buffer_put_int(&msg, count); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 438 | debug("request %u: sent names count %d", id, count); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 439 | for (i = 0; i < count; i++) { |
| 440 | buffer_put_cstring(&msg, stats[i].name); |
| 441 | buffer_put_cstring(&msg, stats[i].long_name); |
| 442 | encode_attrib(&msg, &stats[i].attrib); |
| 443 | } |
| 444 | send_msg(&msg); |
| 445 | buffer_free(&msg); |
| 446 | } |
| 447 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 448 | static void |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 449 | send_attrib(u_int32_t id, const Attrib *a) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 450 | { |
| 451 | Buffer msg; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 452 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 453 | debug("request %u: sent attrib have 0x%x", id, a->flags); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 454 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 455 | buffer_put_char(&msg, SSH2_FXP_ATTRS); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 456 | buffer_put_int(&msg, id); |
| 457 | encode_attrib(&msg, a); |
| 458 | send_msg(&msg); |
| 459 | buffer_free(&msg); |
| 460 | } |
| 461 | |
| 462 | /* parse incoming */ |
| 463 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 464 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 465 | process_init(void) |
| 466 | { |
| 467 | Buffer msg; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 468 | |
Ben Lindstrom | 937df1d | 2002-06-06 21:58:35 +0000 | [diff] [blame] | 469 | version = get_int(); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 470 | verbose("received client version %d", version); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 471 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 472 | buffer_put_char(&msg, SSH2_FXP_VERSION); |
| 473 | buffer_put_int(&msg, SSH2_FILEXFER_VERSION); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 474 | send_msg(&msg); |
| 475 | buffer_free(&msg); |
| 476 | } |
| 477 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 478 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 479 | process_open(void) |
| 480 | { |
| 481 | u_int32_t id, pflags; |
| 482 | Attrib *a; |
| 483 | char *name; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 484 | int handle, fd, flags, mode, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 485 | |
| 486 | id = get_int(); |
| 487 | name = get_string(NULL); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 488 | pflags = get_int(); /* portable flags */ |
Damien Miller | 6444fe9 | 2006-07-10 21:31:27 +1000 | [diff] [blame] | 489 | debug3("request %u: open flags %d", id, pflags); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 490 | a = get_attrib(); |
| 491 | flags = flags_from_portable(pflags); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 492 | mode = (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ? a->perm : 0666; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 493 | logit("open \"%s\" flags %s mode 0%o", |
| 494 | name, string_from_portable(pflags), mode); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 495 | fd = open(name, flags, mode); |
| 496 | if (fd < 0) { |
| 497 | status = errno_to_portable(errno); |
| 498 | } else { |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 499 | handle = handle_new(HANDLE_FILE, name, fd, NULL); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 500 | if (handle < 0) { |
| 501 | close(fd); |
| 502 | } else { |
| 503 | send_handle(id, handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 504 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 505 | } |
| 506 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 507 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 508 | send_status(id, status); |
| 509 | xfree(name); |
| 510 | } |
| 511 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 512 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 513 | process_close(void) |
| 514 | { |
| 515 | u_int32_t id; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 516 | int handle, ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 517 | |
| 518 | id = get_int(); |
| 519 | handle = get_handle(); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 520 | debug3("request %u: close handle %u", id, handle); |
| 521 | handle_log_close(handle, NULL); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 522 | ret = handle_close(handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 523 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 524 | send_status(id, status); |
| 525 | } |
| 526 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 527 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 528 | process_read(void) |
| 529 | { |
| 530 | char buf[64*1024]; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 531 | u_int32_t id, len; |
| 532 | int handle, fd, ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 533 | u_int64_t off; |
| 534 | |
| 535 | id = get_int(); |
| 536 | handle = get_handle(); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 537 | off = get_int64(); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 538 | len = get_int(); |
| 539 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 540 | debug("request %u: read \"%s\" (handle %d) off %llu len %d", |
| 541 | id, handle_to_name(handle), handle, (unsigned long long)off, len); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 542 | if (len > sizeof buf) { |
| 543 | len = sizeof buf; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 544 | debug2("read change len %d", len); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 545 | } |
| 546 | fd = handle_to_fd(handle); |
| 547 | if (fd >= 0) { |
| 548 | if (lseek(fd, off, SEEK_SET) < 0) { |
| 549 | error("process_read: seek failed"); |
| 550 | status = errno_to_portable(errno); |
| 551 | } else { |
| 552 | ret = read(fd, buf, len); |
| 553 | if (ret < 0) { |
| 554 | status = errno_to_portable(errno); |
| 555 | } else if (ret == 0) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 556 | status = SSH2_FX_EOF; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 557 | } else { |
| 558 | send_data(id, buf, ret); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 559 | status = SSH2_FX_OK; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 560 | handle_update_read(handle, ret); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 561 | } |
| 562 | } |
| 563 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 564 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 565 | send_status(id, status); |
| 566 | } |
| 567 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 568 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 569 | process_write(void) |
| 570 | { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 571 | u_int32_t id; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 572 | u_int64_t off; |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 573 | u_int len; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 574 | int handle, fd, ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 575 | char *data; |
| 576 | |
| 577 | id = get_int(); |
| 578 | handle = get_handle(); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 579 | off = get_int64(); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 580 | data = get_string(&len); |
| 581 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 582 | debug("request %u: write \"%s\" (handle %d) off %llu len %d", |
| 583 | id, handle_to_name(handle), handle, (unsigned long long)off, len); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 584 | fd = handle_to_fd(handle); |
| 585 | if (fd >= 0) { |
| 586 | if (lseek(fd, off, SEEK_SET) < 0) { |
| 587 | status = errno_to_portable(errno); |
| 588 | error("process_write: seek failed"); |
| 589 | } else { |
| 590 | /* XXX ATOMICIO ? */ |
| 591 | ret = write(fd, data, len); |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 592 | if (ret < 0) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 593 | error("process_write: write failed"); |
| 594 | status = errno_to_portable(errno); |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 595 | } else if ((size_t)ret == len) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 596 | status = SSH2_FX_OK; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 597 | handle_update_write(handle, ret); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 598 | } else { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 599 | debug2("nothing at all written"); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 600 | } |
| 601 | } |
| 602 | } |
| 603 | send_status(id, status); |
| 604 | xfree(data); |
| 605 | } |
| 606 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 607 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 608 | process_do_stat(int do_lstat) |
| 609 | { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 610 | Attrib a; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 611 | struct stat st; |
| 612 | u_int32_t id; |
| 613 | char *name; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 614 | int ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 615 | |
| 616 | id = get_int(); |
| 617 | name = get_string(NULL); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 618 | debug3("request %u: %sstat", id, do_lstat ? "l" : ""); |
| 619 | verbose("%sstat name \"%s\"", do_lstat ? "l" : "", name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 620 | ret = do_lstat ? lstat(name, &st) : stat(name, &st); |
| 621 | if (ret < 0) { |
| 622 | status = errno_to_portable(errno); |
| 623 | } else { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 624 | stat_to_attrib(&st, &a); |
| 625 | send_attrib(id, &a); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 626 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 627 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 628 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 629 | send_status(id, status); |
| 630 | xfree(name); |
| 631 | } |
| 632 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 633 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 634 | process_stat(void) |
| 635 | { |
| 636 | process_do_stat(0); |
| 637 | } |
| 638 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 639 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 640 | process_lstat(void) |
| 641 | { |
| 642 | process_do_stat(1); |
| 643 | } |
| 644 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 645 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 646 | process_fstat(void) |
| 647 | { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 648 | Attrib a; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 649 | struct stat st; |
| 650 | u_int32_t id; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 651 | int fd, ret, handle, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 652 | |
| 653 | id = get_int(); |
| 654 | handle = get_handle(); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 655 | debug("request %u: fstat \"%s\" (handle %u)", |
| 656 | id, handle_to_name(handle), handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 657 | fd = handle_to_fd(handle); |
| 658 | if (fd >= 0) { |
| 659 | ret = fstat(fd, &st); |
| 660 | if (ret < 0) { |
| 661 | status = errno_to_portable(errno); |
| 662 | } else { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 663 | stat_to_attrib(&st, &a); |
| 664 | send_attrib(id, &a); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 665 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 666 | } |
| 667 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 668 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 669 | send_status(id, status); |
| 670 | } |
| 671 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 672 | static struct timeval * |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 673 | attrib_to_tv(const Attrib *a) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 674 | { |
| 675 | static struct timeval tv[2]; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 676 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 677 | tv[0].tv_sec = a->atime; |
| 678 | tv[0].tv_usec = 0; |
| 679 | tv[1].tv_sec = a->mtime; |
| 680 | tv[1].tv_usec = 0; |
| 681 | return tv; |
| 682 | } |
| 683 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 684 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 685 | process_setstat(void) |
| 686 | { |
| 687 | Attrib *a; |
| 688 | u_int32_t id; |
| 689 | char *name; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 690 | int status = SSH2_FX_OK, ret; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 691 | |
| 692 | id = get_int(); |
| 693 | name = get_string(NULL); |
| 694 | a = get_attrib(); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 695 | debug("request %u: setstat name \"%s\"", id, name); |
Damien Miller | 00c9217 | 2002-02-13 14:05:00 +1100 | [diff] [blame] | 696 | if (a->flags & SSH2_FILEXFER_ATTR_SIZE) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 697 | logit("set \"%s\" size %llu", name, a->size); |
Damien Miller | 00c9217 | 2002-02-13 14:05:00 +1100 | [diff] [blame] | 698 | ret = truncate(name, a->size); |
| 699 | if (ret == -1) |
| 700 | status = errno_to_portable(errno); |
| 701 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 702 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 703 | logit("set \"%s\" mode %04o", name, a->perm); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 704 | ret = chmod(name, a->perm & 0777); |
| 705 | if (ret == -1) |
| 706 | status = errno_to_portable(errno); |
| 707 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 708 | if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 709 | char buf[64]; |
| 710 | time_t t = a->mtime; |
| 711 | |
| 712 | strftime(buf, sizeof(buf), "%Y%m%d-%H:%M:%S", |
| 713 | localtime(&t)); |
| 714 | logit("set \"%s\" modtime %s", name, buf); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 715 | ret = utimes(name, attrib_to_tv(a)); |
| 716 | if (ret == -1) |
| 717 | status = errno_to_portable(errno); |
| 718 | } |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 719 | if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 720 | logit("set \"%s\" owner %lu group %lu", name, |
| 721 | (u_long)a->uid, (u_long)a->gid); |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 722 | ret = chown(name, a->uid, a->gid); |
| 723 | if (ret == -1) |
| 724 | status = errno_to_portable(errno); |
| 725 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 726 | send_status(id, status); |
| 727 | xfree(name); |
| 728 | } |
| 729 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 730 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 731 | process_fsetstat(void) |
| 732 | { |
| 733 | Attrib *a; |
| 734 | u_int32_t id; |
| 735 | int handle, fd, ret; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 736 | int status = SSH2_FX_OK; |
Kevin Steves | f7ffab3 | 2001-01-24 20:11:06 +0000 | [diff] [blame] | 737 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 738 | id = get_int(); |
| 739 | handle = get_handle(); |
| 740 | a = get_attrib(); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 741 | debug("request %u: fsetstat handle %d", id, handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 742 | fd = handle_to_fd(handle); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 743 | if (fd < 0) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 744 | status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 745 | } else { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 746 | char *name = handle_to_name(handle); |
| 747 | |
Damien Miller | 00c9217 | 2002-02-13 14:05:00 +1100 | [diff] [blame] | 748 | if (a->flags & SSH2_FILEXFER_ATTR_SIZE) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 749 | logit("set \"%s\" size %llu", name, a->size); |
Damien Miller | 00c9217 | 2002-02-13 14:05:00 +1100 | [diff] [blame] | 750 | ret = ftruncate(fd, a->size); |
| 751 | if (ret == -1) |
| 752 | status = errno_to_portable(errno); |
| 753 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 754 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 755 | logit("set \"%s\" mode %04o", name, a->perm); |
Ben Lindstrom | 200e3c9 | 2001-01-15 01:56:46 +0000 | [diff] [blame] | 756 | #ifdef HAVE_FCHMOD |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 757 | ret = fchmod(fd, a->perm & 0777); |
Ben Lindstrom | 200e3c9 | 2001-01-15 01:56:46 +0000 | [diff] [blame] | 758 | #else |
Kevin Steves | b6b37ba | 2001-01-24 20:01:44 +0000 | [diff] [blame] | 759 | ret = chmod(name, a->perm & 0777); |
Ben Lindstrom | 200e3c9 | 2001-01-15 01:56:46 +0000 | [diff] [blame] | 760 | #endif |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 761 | if (ret == -1) |
| 762 | status = errno_to_portable(errno); |
| 763 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 764 | if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 765 | char buf[64]; |
| 766 | time_t t = a->mtime; |
| 767 | |
| 768 | strftime(buf, sizeof(buf), "%Y%m%d-%H:%M:%S", |
| 769 | localtime(&t)); |
| 770 | logit("set \"%s\" modtime %s", name, buf); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 771 | #ifdef HAVE_FUTIMES |
| 772 | ret = futimes(fd, attrib_to_tv(a)); |
| 773 | #else |
| 774 | ret = utimes(name, attrib_to_tv(a)); |
| 775 | #endif |
| 776 | if (ret == -1) |
| 777 | status = errno_to_portable(errno); |
| 778 | } |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 779 | if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 780 | logit("set \"%s\" owner %lu group %lu", name, |
| 781 | (u_long)a->uid, (u_long)a->gid); |
Ben Lindstrom | 34bb0c7 | 2001-02-13 02:40:56 +0000 | [diff] [blame] | 782 | #ifdef HAVE_FCHOWN |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 783 | ret = fchown(fd, a->uid, a->gid); |
Ben Lindstrom | 34bb0c7 | 2001-02-13 02:40:56 +0000 | [diff] [blame] | 784 | #else |
| 785 | ret = chown(name, a->uid, a->gid); |
| 786 | #endif |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 787 | if (ret == -1) |
| 788 | status = errno_to_portable(errno); |
| 789 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 790 | } |
| 791 | send_status(id, status); |
| 792 | } |
| 793 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 794 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 795 | process_opendir(void) |
| 796 | { |
| 797 | DIR *dirp = NULL; |
| 798 | char *path; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 799 | int handle, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 800 | u_int32_t id; |
| 801 | |
| 802 | id = get_int(); |
| 803 | path = get_string(NULL); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 804 | debug3("request %u: opendir", id); |
| 805 | logit("opendir \"%s\"", path); |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 806 | dirp = opendir(path); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 807 | if (dirp == NULL) { |
| 808 | status = errno_to_portable(errno); |
| 809 | } else { |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 810 | handle = handle_new(HANDLE_DIR, path, 0, dirp); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 811 | if (handle < 0) { |
| 812 | closedir(dirp); |
| 813 | } else { |
| 814 | send_handle(id, handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 815 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 816 | } |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 817 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 818 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 819 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 820 | send_status(id, status); |
| 821 | xfree(path); |
| 822 | } |
| 823 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 824 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 825 | process_readdir(void) |
| 826 | { |
| 827 | DIR *dirp; |
| 828 | struct dirent *dp; |
| 829 | char *path; |
| 830 | int handle; |
| 831 | u_int32_t id; |
| 832 | |
| 833 | id = get_int(); |
| 834 | handle = get_handle(); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 835 | debug("request %u: readdir \"%s\" (handle %d)", id, |
| 836 | handle_to_name(handle), handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 837 | dirp = handle_to_dir(handle); |
| 838 | path = handle_to_name(handle); |
| 839 | if (dirp == NULL || path == NULL) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 840 | send_status(id, SSH2_FX_FAILURE); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 841 | } else { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 842 | struct stat st; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 843 | char pathname[MAXPATHLEN]; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 844 | Stat *stats; |
| 845 | int nstats = 10, count = 0, i; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 846 | |
Damien Miller | 07d86be | 2006-03-26 14:19:21 +1100 | [diff] [blame] | 847 | stats = xcalloc(nstats, sizeof(Stat)); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 848 | while ((dp = readdir(dirp)) != NULL) { |
| 849 | if (count >= nstats) { |
| 850 | nstats *= 2; |
Damien Miller | 3681209 | 2006-03-26 14:22:47 +1100 | [diff] [blame] | 851 | stats = xrealloc(stats, nstats, sizeof(Stat)); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 852 | } |
| 853 | /* XXX OVERFLOW ? */ |
Ben Lindstrom | 95148e3 | 2001-08-06 21:30:53 +0000 | [diff] [blame] | 854 | snprintf(pathname, sizeof pathname, "%s%s%s", path, |
| 855 | strcmp(path, "/") ? "/" : "", dp->d_name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 856 | if (lstat(pathname, &st) < 0) |
| 857 | continue; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 858 | stat_to_attrib(&st, &(stats[count].attrib)); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 859 | stats[count].name = xstrdup(dp->d_name); |
Damien Miller | e1a4981 | 2002-09-12 09:54:25 +1000 | [diff] [blame] | 860 | stats[count].long_name = ls_file(dp->d_name, &st, 0); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 861 | count++; |
| 862 | /* send up to 100 entries in one message */ |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 863 | /* XXX check packet size instead */ |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 864 | if (count == 100) |
| 865 | break; |
| 866 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 867 | if (count > 0) { |
| 868 | send_names(id, count, stats); |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 869 | for (i = 0; i < count; i++) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 870 | xfree(stats[i].name); |
| 871 | xfree(stats[i].long_name); |
| 872 | } |
| 873 | } else { |
| 874 | send_status(id, SSH2_FX_EOF); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 875 | } |
| 876 | xfree(stats); |
| 877 | } |
| 878 | } |
| 879 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 880 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 881 | process_remove(void) |
| 882 | { |
| 883 | char *name; |
| 884 | u_int32_t id; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 885 | int status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 886 | int ret; |
| 887 | |
| 888 | id = get_int(); |
| 889 | name = get_string(NULL); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 890 | debug3("request %u: remove", id); |
| 891 | logit("remove name \"%s\"", name); |
Kevin Steves | a074feb | 2000-12-21 22:33:45 +0000 | [diff] [blame] | 892 | ret = unlink(name); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 893 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 894 | send_status(id, status); |
| 895 | xfree(name); |
| 896 | } |
| 897 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 898 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 899 | process_mkdir(void) |
| 900 | { |
| 901 | Attrib *a; |
| 902 | u_int32_t id; |
| 903 | char *name; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 904 | int ret, mode, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 905 | |
| 906 | id = get_int(); |
| 907 | name = get_string(NULL); |
| 908 | a = get_attrib(); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 909 | mode = (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ? |
| 910 | a->perm & 0777 : 0777; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 911 | debug3("request %u: mkdir", id); |
| 912 | logit("mkdir name \"%s\" mode 0%o", name, mode); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 913 | ret = mkdir(name, mode); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 914 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 915 | send_status(id, status); |
| 916 | xfree(name); |
| 917 | } |
| 918 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 919 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 920 | process_rmdir(void) |
| 921 | { |
| 922 | u_int32_t id; |
| 923 | char *name; |
| 924 | int ret, status; |
| 925 | |
| 926 | id = get_int(); |
| 927 | name = get_string(NULL); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 928 | debug3("request %u: rmdir", id); |
| 929 | logit("rmdir name \"%s\"", name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 930 | ret = rmdir(name); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 931 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 932 | send_status(id, status); |
| 933 | xfree(name); |
| 934 | } |
| 935 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 936 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 937 | process_realpath(void) |
| 938 | { |
| 939 | char resolvedname[MAXPATHLEN]; |
| 940 | u_int32_t id; |
| 941 | char *path; |
| 942 | |
| 943 | id = get_int(); |
| 944 | path = get_string(NULL); |
Ben Lindstrom | fa1b3d0 | 2000-12-10 01:55:37 +0000 | [diff] [blame] | 945 | if (path[0] == '\0') { |
| 946 | xfree(path); |
| 947 | path = xstrdup("."); |
| 948 | } |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 949 | debug3("request %u: realpath", id); |
| 950 | verbose("realpath \"%s\"", path); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 951 | if (realpath(path, resolvedname) == NULL) { |
| 952 | send_status(id, errno_to_portable(errno)); |
| 953 | } else { |
| 954 | Stat s; |
| 955 | attrib_clear(&s.attrib); |
| 956 | s.name = s.long_name = resolvedname; |
| 957 | send_names(id, 1, &s); |
| 958 | } |
| 959 | xfree(path); |
| 960 | } |
| 961 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 962 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 963 | process_rename(void) |
| 964 | { |
| 965 | u_int32_t id; |
| 966 | char *oldpath, *newpath; |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 967 | int status; |
Damien Miller | b3207e8 | 2003-03-26 16:01:11 +1100 | [diff] [blame] | 968 | struct stat sb; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 969 | |
| 970 | id = get_int(); |
| 971 | oldpath = get_string(NULL); |
| 972 | newpath = get_string(NULL); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 973 | debug3("request %u: rename", id); |
| 974 | logit("rename old \"%s\" new \"%s\"", oldpath, newpath); |
Damien Miller | b3207e8 | 2003-03-26 16:01:11 +1100 | [diff] [blame] | 975 | status = SSH2_FX_FAILURE; |
| 976 | if (lstat(oldpath, &sb) == -1) |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 977 | status = errno_to_portable(errno); |
Damien Miller | b3207e8 | 2003-03-26 16:01:11 +1100 | [diff] [blame] | 978 | else if (S_ISREG(sb.st_mode)) { |
| 979 | /* Race-free rename of regular files */ |
Darren Tucker | aedc1d6 | 2004-06-25 17:06:02 +1000 | [diff] [blame] | 980 | if (link(oldpath, newpath) == -1) { |
Darren Tucker | e59b508 | 2004-06-28 16:01:19 +1000 | [diff] [blame] | 981 | if (errno == EOPNOTSUPP |
| 982 | #ifdef LINK_OPNOTSUPP_ERRNO |
| 983 | || errno == LINK_OPNOTSUPP_ERRNO |
| 984 | #endif |
| 985 | ) { |
Darren Tucker | aedc1d6 | 2004-06-25 17:06:02 +1000 | [diff] [blame] | 986 | struct stat st; |
| 987 | |
| 988 | /* |
| 989 | * fs doesn't support links, so fall back to |
| 990 | * stat+rename. This is racy. |
| 991 | */ |
| 992 | if (stat(newpath, &st) == -1) { |
| 993 | if (rename(oldpath, newpath) == -1) |
| 994 | status = |
| 995 | errno_to_portable(errno); |
| 996 | else |
| 997 | status = SSH2_FX_OK; |
| 998 | } |
| 999 | } else { |
| 1000 | status = errno_to_portable(errno); |
| 1001 | } |
| 1002 | } else if (unlink(oldpath) == -1) { |
Damien Miller | b3207e8 | 2003-03-26 16:01:11 +1100 | [diff] [blame] | 1003 | status = errno_to_portable(errno); |
| 1004 | /* clean spare link */ |
| 1005 | unlink(newpath); |
| 1006 | } else |
| 1007 | status = SSH2_FX_OK; |
| 1008 | } else if (stat(newpath, &sb) == -1) { |
| 1009 | if (rename(oldpath, newpath) == -1) |
| 1010 | status = errno_to_portable(errno); |
| 1011 | else |
| 1012 | status = SSH2_FX_OK; |
| 1013 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1014 | send_status(id, status); |
| 1015 | xfree(oldpath); |
| 1016 | xfree(newpath); |
| 1017 | } |
| 1018 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 1019 | static void |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1020 | process_readlink(void) |
| 1021 | { |
| 1022 | u_int32_t id; |
Ben Lindstrom | abbb73d | 2001-05-17 03:14:57 +0000 | [diff] [blame] | 1023 | int len; |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 1024 | char buf[MAXPATHLEN]; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1025 | char *path; |
| 1026 | |
| 1027 | id = get_int(); |
| 1028 | path = get_string(NULL); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1029 | debug3("request %u: readlink", id); |
| 1030 | verbose("readlink \"%s\"", path); |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 1031 | if ((len = readlink(path, buf, sizeof(buf) - 1)) == -1) |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1032 | send_status(id, errno_to_portable(errno)); |
| 1033 | else { |
| 1034 | Stat s; |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 1035 | |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 1036 | buf[len] = '\0'; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1037 | attrib_clear(&s.attrib); |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 1038 | s.name = s.long_name = buf; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1039 | send_names(id, 1, &s); |
| 1040 | } |
| 1041 | xfree(path); |
| 1042 | } |
| 1043 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 1044 | static void |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1045 | process_symlink(void) |
| 1046 | { |
| 1047 | u_int32_t id; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1048 | char *oldpath, *newpath; |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 1049 | int ret, status; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1050 | |
| 1051 | id = get_int(); |
| 1052 | oldpath = get_string(NULL); |
| 1053 | newpath = get_string(NULL); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1054 | debug3("request %u: symlink", id); |
| 1055 | logit("symlink old \"%s\" new \"%s\"", oldpath, newpath); |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 1056 | /* this will fail if 'newpath' exists */ |
| 1057 | ret = symlink(oldpath, newpath); |
| 1058 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1059 | send_status(id, status); |
| 1060 | xfree(oldpath); |
| 1061 | xfree(newpath); |
| 1062 | } |
| 1063 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 1064 | static void |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1065 | process_extended(void) |
| 1066 | { |
| 1067 | u_int32_t id; |
| 1068 | char *request; |
| 1069 | |
| 1070 | id = get_int(); |
| 1071 | request = get_string(NULL); |
| 1072 | send_status(id, SSH2_FX_OP_UNSUPPORTED); /* MUST */ |
| 1073 | xfree(request); |
| 1074 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1075 | |
| 1076 | /* stolen from ssh-agent */ |
| 1077 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 1078 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1079 | process(void) |
| 1080 | { |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 1081 | u_int msg_len; |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 1082 | u_int buf_len; |
| 1083 | u_int consumed; |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 1084 | u_int type; |
| 1085 | u_char *cp; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1086 | |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 1087 | buf_len = buffer_len(&iqueue); |
| 1088 | if (buf_len < 5) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1089 | return; /* Incomplete message. */ |
Damien Miller | 708d21c | 2002-01-22 23:18:15 +1100 | [diff] [blame] | 1090 | cp = buffer_ptr(&iqueue); |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 1091 | msg_len = get_u32(cp); |
Damien Miller | 5444618 | 2006-01-02 23:40:50 +1100 | [diff] [blame] | 1092 | if (msg_len > SFTP_MAX_MSG_LENGTH) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1093 | error("bad message from %s local user %s", |
| 1094 | client_addr, pw->pw_name); |
| 1095 | cleanup_exit(11); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1096 | } |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 1097 | if (buf_len < msg_len + 4) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1098 | return; |
| 1099 | buffer_consume(&iqueue, 4); |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 1100 | buf_len -= 4; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1101 | type = buffer_get_char(&iqueue); |
| 1102 | switch (type) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1103 | case SSH2_FXP_INIT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1104 | process_init(); |
| 1105 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1106 | case SSH2_FXP_OPEN: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1107 | process_open(); |
| 1108 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1109 | case SSH2_FXP_CLOSE: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1110 | process_close(); |
| 1111 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1112 | case SSH2_FXP_READ: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1113 | process_read(); |
| 1114 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1115 | case SSH2_FXP_WRITE: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1116 | process_write(); |
| 1117 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1118 | case SSH2_FXP_LSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1119 | process_lstat(); |
| 1120 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1121 | case SSH2_FXP_FSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1122 | process_fstat(); |
| 1123 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1124 | case SSH2_FXP_SETSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1125 | process_setstat(); |
| 1126 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1127 | case SSH2_FXP_FSETSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1128 | process_fsetstat(); |
| 1129 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1130 | case SSH2_FXP_OPENDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1131 | process_opendir(); |
| 1132 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1133 | case SSH2_FXP_READDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1134 | process_readdir(); |
| 1135 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1136 | case SSH2_FXP_REMOVE: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1137 | process_remove(); |
| 1138 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1139 | case SSH2_FXP_MKDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1140 | process_mkdir(); |
| 1141 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1142 | case SSH2_FXP_RMDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1143 | process_rmdir(); |
| 1144 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1145 | case SSH2_FXP_REALPATH: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1146 | process_realpath(); |
| 1147 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1148 | case SSH2_FXP_STAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1149 | process_stat(); |
| 1150 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1151 | case SSH2_FXP_RENAME: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1152 | process_rename(); |
| 1153 | break; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1154 | case SSH2_FXP_READLINK: |
| 1155 | process_readlink(); |
| 1156 | break; |
| 1157 | case SSH2_FXP_SYMLINK: |
| 1158 | process_symlink(); |
| 1159 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1160 | case SSH2_FXP_EXTENDED: |
| 1161 | process_extended(); |
| 1162 | break; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1163 | default: |
| 1164 | error("Unknown message %d", type); |
| 1165 | break; |
| 1166 | } |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 1167 | /* discard the remaining bytes from the current packet */ |
| 1168 | if (buf_len < buffer_len(&iqueue)) |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1169 | fatal("iqueue grew unexpectedly"); |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 1170 | consumed = buf_len - buffer_len(&iqueue); |
| 1171 | if (msg_len < consumed) |
| 1172 | fatal("msg_len %d < consumed %d", msg_len, consumed); |
| 1173 | if (msg_len > consumed) |
| 1174 | buffer_consume(&iqueue, msg_len - consumed); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1175 | } |
| 1176 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1177 | /* Cleanup handler that logs active handles upon normal exit */ |
| 1178 | void |
| 1179 | cleanup_exit(int i) |
| 1180 | { |
| 1181 | if (pw != NULL && client_addr != NULL) { |
| 1182 | handle_log_exit(); |
| 1183 | logit("session closed for local user %s from [%s]", |
| 1184 | pw->pw_name, client_addr); |
| 1185 | } |
| 1186 | _exit(i); |
| 1187 | } |
| 1188 | |
| 1189 | static void |
| 1190 | usage(void) |
| 1191 | { |
| 1192 | extern char *__progname; |
| 1193 | |
| 1194 | fprintf(stderr, |
| 1195 | "usage: %s [-he] [-l log_level] [-f log_facility]\n", __progname); |
| 1196 | exit(1); |
| 1197 | } |
| 1198 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1199 | int |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1200 | main(int argc, char **argv) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1201 | { |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1202 | fd_set *rset, *wset; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1203 | int in, out, max, ch, skipargs = 0, log_stderr = 0; |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1204 | ssize_t len, olen, set_size; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1205 | SyslogFacility log_facility = SYSLOG_FACILITY_AUTH; |
| 1206 | char *cp; |
| 1207 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1208 | extern char *optarg; |
| 1209 | extern char *__progname; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1210 | |
Darren Tucker | ce321d8 | 2005-10-03 18:11:24 +1000 | [diff] [blame] | 1211 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
| 1212 | sanitise_stdfd(); |
| 1213 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1214 | __progname = ssh_get_progname(argv[0]); |
| 1215 | log_init(__progname, log_level, log_facility, log_stderr); |
Ben Lindstrom | c7f4ccd | 2001-03-15 00:09:15 +0000 | [diff] [blame] | 1216 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1217 | while (!skipargs && (ch = getopt(argc, argv, "C:f:l:che")) != -1) { |
| 1218 | switch (ch) { |
| 1219 | case 'c': |
| 1220 | /* |
| 1221 | * Ignore all arguments if we are invoked as a |
| 1222 | * shell using "sftp-server -c command" |
| 1223 | */ |
| 1224 | skipargs = 1; |
| 1225 | break; |
| 1226 | case 'e': |
| 1227 | log_stderr = 1; |
| 1228 | break; |
| 1229 | case 'l': |
| 1230 | log_level = log_level_number(optarg); |
| 1231 | if (log_level == SYSLOG_LEVEL_NOT_SET) |
| 1232 | error("Invalid log level \"%s\"", optarg); |
| 1233 | break; |
| 1234 | case 'f': |
| 1235 | log_facility = log_facility_number(optarg); |
| 1236 | if (log_level == SYSLOG_FACILITY_NOT_SET) |
| 1237 | error("Invalid log facility \"%s\"", optarg); |
| 1238 | break; |
| 1239 | case 'h': |
| 1240 | default: |
| 1241 | usage(); |
| 1242 | } |
| 1243 | } |
| 1244 | |
| 1245 | log_init(__progname, log_level, log_facility, log_stderr); |
| 1246 | |
| 1247 | if ((cp = getenv("SSH_CONNECTION")) != NULL) { |
| 1248 | client_addr = xstrdup(cp); |
| 1249 | if ((cp = strchr(client_addr, ' ')) == NULL) |
| 1250 | fatal("Malformed SSH_CONNECTION variable: \"%s\"", |
| 1251 | getenv("SSH_CONNECTION")); |
| 1252 | *cp = '\0'; |
| 1253 | } else |
| 1254 | client_addr = xstrdup("UNKNOWN"); |
| 1255 | |
| 1256 | if ((pw = getpwuid(getuid())) == NULL) |
| 1257 | fatal("No user found for uid %lu", (u_long)getuid()); |
| 1258 | pw = pwcopy(pw); |
| 1259 | |
| 1260 | logit("session opened for local user %s from [%s]", |
| 1261 | pw->pw_name, client_addr); |
| 1262 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1263 | handle_init(); |
| 1264 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1265 | in = dup(STDIN_FILENO); |
| 1266 | out = dup(STDOUT_FILENO); |
| 1267 | |
Damien Miller | 402b331 | 2001-04-14 00:28:42 +1000 | [diff] [blame] | 1268 | #ifdef HAVE_CYGWIN |
| 1269 | setmode(in, O_BINARY); |
| 1270 | setmode(out, O_BINARY); |
| 1271 | #endif |
| 1272 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1273 | max = 0; |
| 1274 | if (in > max) |
| 1275 | max = in; |
| 1276 | if (out > max) |
| 1277 | max = out; |
| 1278 | |
| 1279 | buffer_init(&iqueue); |
| 1280 | buffer_init(&oqueue); |
| 1281 | |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1282 | set_size = howmany(max + 1, NFDBITS) * sizeof(fd_mask); |
| 1283 | rset = (fd_set *)xmalloc(set_size); |
| 1284 | wset = (fd_set *)xmalloc(set_size); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1285 | |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1286 | for (;;) { |
| 1287 | memset(rset, 0, set_size); |
| 1288 | memset(wset, 0, set_size); |
| 1289 | |
| 1290 | FD_SET(in, rset); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1291 | olen = buffer_len(&oqueue); |
| 1292 | if (olen > 0) |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1293 | FD_SET(out, wset); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1294 | |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1295 | if (select(max+1, rset, wset, NULL, NULL) < 0) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1296 | if (errno == EINTR) |
| 1297 | continue; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1298 | error("select: %s", strerror(errno)); |
| 1299 | cleanup_exit(2); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1300 | } |
| 1301 | |
| 1302 | /* copy stdin to iqueue */ |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1303 | if (FD_ISSET(in, rset)) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1304 | char buf[4*4096]; |
| 1305 | len = read(in, buf, sizeof buf); |
| 1306 | if (len == 0) { |
| 1307 | debug("read eof"); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1308 | cleanup_exit(0); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1309 | } else if (len < 0) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1310 | error("read: %s", strerror(errno)); |
| 1311 | cleanup_exit(1); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1312 | } else { |
| 1313 | buffer_append(&iqueue, buf, len); |
| 1314 | } |
| 1315 | } |
| 1316 | /* send oqueue to stdout */ |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1317 | if (FD_ISSET(out, wset)) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1318 | len = write(out, buffer_ptr(&oqueue), olen); |
| 1319 | if (len < 0) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1320 | error("write: %s", strerror(errno)); |
| 1321 | cleanup_exit(1); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1322 | } else { |
| 1323 | buffer_consume(&oqueue, len); |
| 1324 | } |
| 1325 | } |
| 1326 | /* process requests from client */ |
| 1327 | process(); |
| 1328 | } |
| 1329 | } |