Damien Miller | e7a1e5c | 2006-08-05 11:34:19 +1000 | [diff] [blame^] | 1 | /* $OpenBSD: sftp-server.c,v 1.68 2006/07/26 13:57:17 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> |
Damien Miller | 8dbffe7 | 2006-08-05 11:02:17 +1000 | [diff] [blame] | 20 | #include <sys/param.h> |
Damien Miller | f17883e | 2006-03-15 11:45:54 +1100 | [diff] [blame] | 21 | #include <sys/stat.h> |
Damien Miller | 9aec919 | 2006-08-05 10:57:45 +1000 | [diff] [blame] | 22 | #ifdef HAVE_SYS_TIME_H |
| 23 | # include <sys/time.h> |
| 24 | #endif |
Damien Miller | 88f254b | 2006-03-15 11:25:13 +1100 | [diff] [blame] | 25 | |
| 26 | #include <dirent.h> |
Darren Tucker | 3997249 | 2006-07-12 22:22:46 +1000 | [diff] [blame] | 27 | #include <errno.h> |
Damien Miller | 57cf638 | 2006-07-10 21:13:46 +1000 | [diff] [blame] | 28 | #include <fcntl.h> |
Damien Miller | 9f2abc4 | 2006-07-10 20:53:08 +1000 | [diff] [blame] | 29 | #include <pwd.h> |
Damien Miller | e7a1e5c | 2006-08-05 11:34:19 +1000 | [diff] [blame^] | 30 | #include <stdlib.h> |
Damien Miller | e3476ed | 2006-07-24 14:13:33 +1000 | [diff] [blame] | 31 | #include <string.h> |
Damien Miller | 5598b4f | 2006-07-24 14:09:40 +1000 | [diff] [blame] | 32 | #include <time.h> |
Damien Miller | e3476ed | 2006-07-24 14:13:33 +1000 | [diff] [blame] | 33 | #include <unistd.h> |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 34 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 35 | #include "buffer.h" |
| 36 | #include "bufaux.h" |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 37 | #include "log.h" |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 38 | #include "xmalloc.h" |
Darren Tucker | ce321d8 | 2005-10-03 18:11:24 +1000 | [diff] [blame] | 39 | #include "misc.h" |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 40 | #include "uidswap.h" |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 41 | |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 42 | #include "sftp.h" |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 43 | #include "sftp-common.h" |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 44 | |
| 45 | /* helper */ |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 46 | #define get_int64() buffer_get_int64(&iqueue); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 47 | #define get_int() buffer_get_int(&iqueue); |
| 48 | #define get_string(lenp) buffer_get_string(&iqueue, lenp); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 49 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 50 | /* Our verbosity */ |
| 51 | LogLevel log_level = SYSLOG_LEVEL_ERROR; |
| 52 | |
| 53 | /* Our client */ |
| 54 | struct passwd *pw = NULL; |
| 55 | char *client_addr = NULL; |
Ben Lindstrom | 49a79c0 | 2000-11-17 03:47:20 +0000 | [diff] [blame] | 56 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 57 | /* input and output queue */ |
| 58 | Buffer iqueue; |
| 59 | Buffer oqueue; |
| 60 | |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 61 | /* Version of client */ |
| 62 | int version; |
| 63 | |
Darren Tucker | a6612d4 | 2003-06-28 12:39:03 +1000 | [diff] [blame] | 64 | /* portable attributes, etc. */ |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 65 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 66 | typedef struct Stat Stat; |
| 67 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 68 | struct Stat { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 69 | char *name; |
| 70 | char *long_name; |
| 71 | Attrib attrib; |
| 72 | }; |
| 73 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 74 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 75 | errno_to_portable(int unixerrno) |
| 76 | { |
| 77 | int ret = 0; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 78 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 79 | switch (unixerrno) { |
| 80 | case 0: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 81 | ret = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 82 | break; |
| 83 | case ENOENT: |
| 84 | case ENOTDIR: |
| 85 | case EBADF: |
| 86 | case ELOOP: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 87 | ret = SSH2_FX_NO_SUCH_FILE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 88 | break; |
| 89 | case EPERM: |
| 90 | case EACCES: |
| 91 | case EFAULT: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 92 | ret = SSH2_FX_PERMISSION_DENIED; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 93 | break; |
| 94 | case ENAMETOOLONG: |
| 95 | case EINVAL: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 96 | ret = SSH2_FX_BAD_MESSAGE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 97 | break; |
| 98 | default: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 99 | ret = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 100 | break; |
| 101 | } |
| 102 | return ret; |
| 103 | } |
| 104 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 105 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 106 | flags_from_portable(int pflags) |
| 107 | { |
| 108 | int flags = 0; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 109 | |
Ben Lindstrom | 3659251 | 2001-03-05 05:02:08 +0000 | [diff] [blame] | 110 | if ((pflags & SSH2_FXF_READ) && |
| 111 | (pflags & SSH2_FXF_WRITE)) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 112 | flags = O_RDWR; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 113 | } else if (pflags & SSH2_FXF_READ) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 114 | flags = O_RDONLY; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 115 | } else if (pflags & SSH2_FXF_WRITE) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 116 | flags = O_WRONLY; |
| 117 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 118 | if (pflags & SSH2_FXF_CREAT) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 119 | flags |= O_CREAT; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 120 | if (pflags & SSH2_FXF_TRUNC) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 121 | flags |= O_TRUNC; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 122 | if (pflags & SSH2_FXF_EXCL) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 123 | flags |= O_EXCL; |
| 124 | return flags; |
| 125 | } |
| 126 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 127 | static const char * |
| 128 | string_from_portable(int pflags) |
| 129 | { |
| 130 | static char ret[128]; |
| 131 | |
| 132 | *ret = '\0'; |
| 133 | |
| 134 | #define PAPPEND(str) { \ |
| 135 | if (*ret != '\0') \ |
| 136 | strlcat(ret, ",", sizeof(ret)); \ |
| 137 | strlcat(ret, str, sizeof(ret)); \ |
| 138 | } |
| 139 | |
| 140 | if (pflags & SSH2_FXF_READ) |
| 141 | PAPPEND("READ") |
| 142 | if (pflags & SSH2_FXF_WRITE) |
| 143 | PAPPEND("WRITE") |
| 144 | if (pflags & SSH2_FXF_CREAT) |
| 145 | PAPPEND("CREATE") |
| 146 | if (pflags & SSH2_FXF_TRUNC) |
| 147 | PAPPEND("TRUNCATE") |
| 148 | if (pflags & SSH2_FXF_EXCL) |
| 149 | PAPPEND("EXCL") |
| 150 | |
| 151 | return ret; |
| 152 | } |
| 153 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 154 | static Attrib * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 155 | get_attrib(void) |
| 156 | { |
| 157 | return decode_attrib(&iqueue); |
| 158 | } |
| 159 | |
| 160 | /* handle handles */ |
| 161 | |
| 162 | typedef struct Handle Handle; |
| 163 | struct Handle { |
| 164 | int use; |
| 165 | DIR *dirp; |
| 166 | int fd; |
| 167 | char *name; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 168 | u_int64_t bytes_read, bytes_write; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 169 | }; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 170 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 171 | enum { |
| 172 | HANDLE_UNUSED, |
| 173 | HANDLE_DIR, |
| 174 | HANDLE_FILE |
| 175 | }; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 176 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 177 | Handle handles[100]; |
| 178 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 179 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 180 | handle_init(void) |
| 181 | { |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 182 | u_int i; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 183 | |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 184 | for (i = 0; i < sizeof(handles)/sizeof(Handle); i++) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 185 | handles[i].use = HANDLE_UNUSED; |
| 186 | } |
| 187 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 188 | static int |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 189 | handle_new(int use, const char *name, int fd, DIR *dirp) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 190 | { |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 191 | u_int i; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 192 | |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 193 | for (i = 0; i < sizeof(handles)/sizeof(Handle); i++) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 194 | if (handles[i].use == HANDLE_UNUSED) { |
| 195 | handles[i].use = use; |
| 196 | handles[i].dirp = dirp; |
| 197 | handles[i].fd = fd; |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 198 | handles[i].name = xstrdup(name); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 199 | handles[i].bytes_read = handles[i].bytes_write = 0; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 200 | return i; |
| 201 | } |
| 202 | } |
| 203 | return -1; |
| 204 | } |
| 205 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 206 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 207 | handle_is_ok(int i, int type) |
| 208 | { |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 209 | return i >= 0 && (u_int)i < sizeof(handles)/sizeof(Handle) && |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 210 | handles[i].use == type; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 211 | } |
| 212 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 213 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 214 | handle_to_string(int handle, char **stringp, int *hlenp) |
| 215 | { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 216 | if (stringp == NULL || hlenp == NULL) |
| 217 | return -1; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 218 | *stringp = xmalloc(sizeof(int32_t)); |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 219 | put_u32(*stringp, handle); |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 220 | *hlenp = sizeof(int32_t); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 221 | return 0; |
| 222 | } |
| 223 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 224 | static int |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 225 | handle_from_string(const char *handle, u_int hlen) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 226 | { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 227 | int val; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 228 | |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 229 | if (hlen != sizeof(int32_t)) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 230 | return -1; |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 231 | val = get_u32(handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 232 | if (handle_is_ok(val, HANDLE_FILE) || |
| 233 | handle_is_ok(val, HANDLE_DIR)) |
| 234 | return val; |
| 235 | return -1; |
| 236 | } |
| 237 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 238 | static char * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 239 | handle_to_name(int handle) |
| 240 | { |
| 241 | if (handle_is_ok(handle, HANDLE_DIR)|| |
| 242 | handle_is_ok(handle, HANDLE_FILE)) |
| 243 | return handles[handle].name; |
| 244 | return NULL; |
| 245 | } |
| 246 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 247 | static DIR * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 248 | handle_to_dir(int handle) |
| 249 | { |
| 250 | if (handle_is_ok(handle, HANDLE_DIR)) |
| 251 | return handles[handle].dirp; |
| 252 | return NULL; |
| 253 | } |
| 254 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 255 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 256 | handle_to_fd(int handle) |
| 257 | { |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 258 | if (handle_is_ok(handle, HANDLE_FILE)) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 259 | return handles[handle].fd; |
| 260 | return -1; |
| 261 | } |
| 262 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 263 | static void |
| 264 | handle_update_read(int handle, ssize_t bytes) |
| 265 | { |
| 266 | if (handle_is_ok(handle, HANDLE_FILE) && bytes > 0) |
| 267 | handles[handle].bytes_read += bytes; |
| 268 | } |
| 269 | |
| 270 | static void |
| 271 | handle_update_write(int handle, ssize_t bytes) |
| 272 | { |
| 273 | if (handle_is_ok(handle, HANDLE_FILE) && bytes > 0) |
| 274 | handles[handle].bytes_write += bytes; |
| 275 | } |
| 276 | |
| 277 | static u_int64_t |
| 278 | handle_bytes_read(int handle) |
| 279 | { |
| 280 | if (handle_is_ok(handle, HANDLE_FILE)) |
| 281 | return (handles[handle].bytes_read); |
| 282 | return 0; |
| 283 | } |
| 284 | |
| 285 | static u_int64_t |
| 286 | handle_bytes_write(int handle) |
| 287 | { |
| 288 | if (handle_is_ok(handle, HANDLE_FILE)) |
| 289 | return (handles[handle].bytes_write); |
| 290 | return 0; |
| 291 | } |
| 292 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 293 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 294 | handle_close(int handle) |
| 295 | { |
| 296 | int ret = -1; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 297 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 298 | if (handle_is_ok(handle, HANDLE_FILE)) { |
| 299 | ret = close(handles[handle].fd); |
| 300 | handles[handle].use = HANDLE_UNUSED; |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 301 | xfree(handles[handle].name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 302 | } else if (handle_is_ok(handle, HANDLE_DIR)) { |
| 303 | ret = closedir(handles[handle].dirp); |
| 304 | handles[handle].use = HANDLE_UNUSED; |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 305 | xfree(handles[handle].name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 306 | } else { |
| 307 | errno = ENOENT; |
| 308 | } |
| 309 | return ret; |
| 310 | } |
| 311 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 312 | static void |
| 313 | handle_log_close(int handle, char *emsg) |
| 314 | { |
| 315 | if (handle_is_ok(handle, HANDLE_FILE)) { |
| 316 | logit("%s%sclose \"%s\" bytes read %llu written %llu", |
| 317 | emsg == NULL ? "" : emsg, emsg == NULL ? "" : " ", |
| 318 | handle_to_name(handle), |
| 319 | handle_bytes_read(handle), handle_bytes_write(handle)); |
| 320 | } else { |
| 321 | logit("%s%sclosedir \"%s\"", |
| 322 | emsg == NULL ? "" : emsg, emsg == NULL ? "" : " ", |
| 323 | handle_to_name(handle)); |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | static void |
| 328 | handle_log_exit(void) |
| 329 | { |
| 330 | u_int i; |
| 331 | |
| 332 | for (i = 0; i < sizeof(handles)/sizeof(Handle); i++) |
| 333 | if (handles[i].use != HANDLE_UNUSED) |
| 334 | handle_log_close(i, "forced"); |
| 335 | } |
| 336 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 337 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 338 | get_handle(void) |
| 339 | { |
| 340 | char *handle; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 341 | int val = -1; |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 342 | u_int hlen; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 343 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 344 | handle = get_string(&hlen); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 345 | if (hlen < 256) |
| 346 | val = handle_from_string(handle, hlen); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 347 | xfree(handle); |
| 348 | return val; |
| 349 | } |
| 350 | |
| 351 | /* send replies */ |
| 352 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 353 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 354 | send_msg(Buffer *m) |
| 355 | { |
| 356 | int mlen = buffer_len(m); |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 357 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 358 | buffer_put_int(&oqueue, mlen); |
| 359 | buffer_append(&oqueue, buffer_ptr(m), mlen); |
| 360 | buffer_consume(m, mlen); |
| 361 | } |
| 362 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 363 | static const char * |
| 364 | status_to_message(u_int32_t status) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 365 | { |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 366 | const char *status_messages[] = { |
| 367 | "Success", /* SSH_FX_OK */ |
| 368 | "End of file", /* SSH_FX_EOF */ |
| 369 | "No such file", /* SSH_FX_NO_SUCH_FILE */ |
| 370 | "Permission denied", /* SSH_FX_PERMISSION_DENIED */ |
| 371 | "Failure", /* SSH_FX_FAILURE */ |
| 372 | "Bad message", /* SSH_FX_BAD_MESSAGE */ |
| 373 | "No connection", /* SSH_FX_NO_CONNECTION */ |
| 374 | "Connection lost", /* SSH_FX_CONNECTION_LOST */ |
| 375 | "Operation unsupported", /* SSH_FX_OP_UNSUPPORTED */ |
| 376 | "Unknown error" /* Others */ |
| 377 | }; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 378 | return (status_messages[MIN(status,SSH2_FX_MAX)]); |
| 379 | } |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 380 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 381 | static void |
| 382 | send_status(u_int32_t id, u_int32_t status) |
| 383 | { |
| 384 | Buffer msg; |
| 385 | |
| 386 | debug3("request %u: sent status %u", id, status); |
| 387 | if (log_level > SYSLOG_LEVEL_VERBOSE || |
| 388 | (status != SSH2_FX_OK && status != SSH2_FX_EOF)) |
| 389 | logit("sent status %s", status_to_message(status)); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 390 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 391 | buffer_put_char(&msg, SSH2_FXP_STATUS); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 392 | buffer_put_int(&msg, id); |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 393 | buffer_put_int(&msg, status); |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 394 | if (version >= 3) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 395 | buffer_put_cstring(&msg, status_to_message(status)); |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 396 | buffer_put_cstring(&msg, ""); |
| 397 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 398 | send_msg(&msg); |
| 399 | buffer_free(&msg); |
| 400 | } |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 401 | static void |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 402 | 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] | 403 | { |
| 404 | Buffer msg; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 405 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 406 | buffer_init(&msg); |
| 407 | buffer_put_char(&msg, type); |
| 408 | buffer_put_int(&msg, id); |
| 409 | buffer_put_string(&msg, data, dlen); |
| 410 | send_msg(&msg); |
| 411 | buffer_free(&msg); |
| 412 | } |
| 413 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 414 | static void |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 415 | send_data(u_int32_t id, const char *data, int dlen) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 416 | { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 417 | debug("request %u: sent data len %d", id, dlen); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 418 | send_data_or_handle(SSH2_FXP_DATA, id, data, dlen); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 419 | } |
| 420 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 421 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 422 | send_handle(u_int32_t id, int handle) |
| 423 | { |
| 424 | char *string; |
| 425 | int hlen; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 426 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 427 | handle_to_string(handle, &string, &hlen); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 428 | debug("request %u: sent handle handle %d", id, handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 429 | send_data_or_handle(SSH2_FXP_HANDLE, id, string, hlen); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 430 | xfree(string); |
| 431 | } |
| 432 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 433 | static void |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 434 | send_names(u_int32_t id, int count, const Stat *stats) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 435 | { |
| 436 | Buffer msg; |
| 437 | int i; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 438 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 439 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 440 | buffer_put_char(&msg, SSH2_FXP_NAME); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 441 | buffer_put_int(&msg, id); |
| 442 | buffer_put_int(&msg, count); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 443 | debug("request %u: sent names count %d", id, count); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 444 | for (i = 0; i < count; i++) { |
| 445 | buffer_put_cstring(&msg, stats[i].name); |
| 446 | buffer_put_cstring(&msg, stats[i].long_name); |
| 447 | encode_attrib(&msg, &stats[i].attrib); |
| 448 | } |
| 449 | send_msg(&msg); |
| 450 | buffer_free(&msg); |
| 451 | } |
| 452 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 453 | static void |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 454 | send_attrib(u_int32_t id, const Attrib *a) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 455 | { |
| 456 | Buffer msg; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 457 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 458 | debug("request %u: sent attrib have 0x%x", id, a->flags); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 459 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 460 | buffer_put_char(&msg, SSH2_FXP_ATTRS); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 461 | buffer_put_int(&msg, id); |
| 462 | encode_attrib(&msg, a); |
| 463 | send_msg(&msg); |
| 464 | buffer_free(&msg); |
| 465 | } |
| 466 | |
| 467 | /* parse incoming */ |
| 468 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 469 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 470 | process_init(void) |
| 471 | { |
| 472 | Buffer msg; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 473 | |
Ben Lindstrom | 937df1d | 2002-06-06 21:58:35 +0000 | [diff] [blame] | 474 | version = get_int(); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 475 | verbose("received client version %d", version); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 476 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 477 | buffer_put_char(&msg, SSH2_FXP_VERSION); |
| 478 | buffer_put_int(&msg, SSH2_FILEXFER_VERSION); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 479 | send_msg(&msg); |
| 480 | buffer_free(&msg); |
| 481 | } |
| 482 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 483 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 484 | process_open(void) |
| 485 | { |
| 486 | u_int32_t id, pflags; |
| 487 | Attrib *a; |
| 488 | char *name; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 489 | int handle, fd, flags, mode, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 490 | |
| 491 | id = get_int(); |
| 492 | name = get_string(NULL); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 493 | pflags = get_int(); /* portable flags */ |
Damien Miller | 6444fe9 | 2006-07-10 21:31:27 +1000 | [diff] [blame] | 494 | debug3("request %u: open flags %d", id, pflags); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 495 | a = get_attrib(); |
| 496 | flags = flags_from_portable(pflags); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 497 | mode = (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ? a->perm : 0666; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 498 | logit("open \"%s\" flags %s mode 0%o", |
| 499 | name, string_from_portable(pflags), mode); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 500 | fd = open(name, flags, mode); |
| 501 | if (fd < 0) { |
| 502 | status = errno_to_portable(errno); |
| 503 | } else { |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 504 | handle = handle_new(HANDLE_FILE, name, fd, NULL); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 505 | if (handle < 0) { |
| 506 | close(fd); |
| 507 | } else { |
| 508 | send_handle(id, handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 509 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 510 | } |
| 511 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 512 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 513 | send_status(id, status); |
| 514 | xfree(name); |
| 515 | } |
| 516 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 517 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 518 | process_close(void) |
| 519 | { |
| 520 | u_int32_t id; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 521 | int handle, ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 522 | |
| 523 | id = get_int(); |
| 524 | handle = get_handle(); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 525 | debug3("request %u: close handle %u", id, handle); |
| 526 | handle_log_close(handle, NULL); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 527 | ret = handle_close(handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 528 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 529 | send_status(id, status); |
| 530 | } |
| 531 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 532 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 533 | process_read(void) |
| 534 | { |
| 535 | char buf[64*1024]; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 536 | u_int32_t id, len; |
| 537 | int handle, fd, ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 538 | u_int64_t off; |
| 539 | |
| 540 | id = get_int(); |
| 541 | handle = get_handle(); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 542 | off = get_int64(); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 543 | len = get_int(); |
| 544 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 545 | debug("request %u: read \"%s\" (handle %d) off %llu len %d", |
| 546 | id, handle_to_name(handle), handle, (unsigned long long)off, len); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 547 | if (len > sizeof buf) { |
| 548 | len = sizeof buf; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 549 | debug2("read change len %d", len); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 550 | } |
| 551 | fd = handle_to_fd(handle); |
| 552 | if (fd >= 0) { |
| 553 | if (lseek(fd, off, SEEK_SET) < 0) { |
| 554 | error("process_read: seek failed"); |
| 555 | status = errno_to_portable(errno); |
| 556 | } else { |
| 557 | ret = read(fd, buf, len); |
| 558 | if (ret < 0) { |
| 559 | status = errno_to_portable(errno); |
| 560 | } else if (ret == 0) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 561 | status = SSH2_FX_EOF; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 562 | } else { |
| 563 | send_data(id, buf, ret); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 564 | status = SSH2_FX_OK; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 565 | handle_update_read(handle, ret); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 566 | } |
| 567 | } |
| 568 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 569 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 570 | send_status(id, status); |
| 571 | } |
| 572 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 573 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 574 | process_write(void) |
| 575 | { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 576 | u_int32_t id; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 577 | u_int64_t off; |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 578 | u_int len; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 579 | int handle, fd, ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 580 | char *data; |
| 581 | |
| 582 | id = get_int(); |
| 583 | handle = get_handle(); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 584 | off = get_int64(); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 585 | data = get_string(&len); |
| 586 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 587 | debug("request %u: write \"%s\" (handle %d) off %llu len %d", |
| 588 | id, handle_to_name(handle), handle, (unsigned long long)off, len); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 589 | fd = handle_to_fd(handle); |
| 590 | if (fd >= 0) { |
| 591 | if (lseek(fd, off, SEEK_SET) < 0) { |
| 592 | status = errno_to_portable(errno); |
| 593 | error("process_write: seek failed"); |
| 594 | } else { |
| 595 | /* XXX ATOMICIO ? */ |
| 596 | ret = write(fd, data, len); |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 597 | if (ret < 0) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 598 | error("process_write: write failed"); |
| 599 | status = errno_to_portable(errno); |
Damien Miller | eccb9de | 2005-06-17 12:59:34 +1000 | [diff] [blame] | 600 | } else if ((size_t)ret == len) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 601 | status = SSH2_FX_OK; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 602 | handle_update_write(handle, ret); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 603 | } else { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 604 | debug2("nothing at all written"); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 605 | } |
| 606 | } |
| 607 | } |
| 608 | send_status(id, status); |
| 609 | xfree(data); |
| 610 | } |
| 611 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 612 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 613 | process_do_stat(int do_lstat) |
| 614 | { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 615 | Attrib a; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 616 | struct stat st; |
| 617 | u_int32_t id; |
| 618 | char *name; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 619 | int ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 620 | |
| 621 | id = get_int(); |
| 622 | name = get_string(NULL); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 623 | debug3("request %u: %sstat", id, do_lstat ? "l" : ""); |
| 624 | verbose("%sstat name \"%s\"", do_lstat ? "l" : "", name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 625 | ret = do_lstat ? lstat(name, &st) : stat(name, &st); |
| 626 | if (ret < 0) { |
| 627 | status = errno_to_portable(errno); |
| 628 | } else { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 629 | stat_to_attrib(&st, &a); |
| 630 | send_attrib(id, &a); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 631 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 632 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 633 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 634 | send_status(id, status); |
| 635 | xfree(name); |
| 636 | } |
| 637 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 638 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 639 | process_stat(void) |
| 640 | { |
| 641 | process_do_stat(0); |
| 642 | } |
| 643 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 644 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 645 | process_lstat(void) |
| 646 | { |
| 647 | process_do_stat(1); |
| 648 | } |
| 649 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 650 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 651 | process_fstat(void) |
| 652 | { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 653 | Attrib a; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 654 | struct stat st; |
| 655 | u_int32_t id; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 656 | int fd, ret, handle, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 657 | |
| 658 | id = get_int(); |
| 659 | handle = get_handle(); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 660 | debug("request %u: fstat \"%s\" (handle %u)", |
| 661 | id, handle_to_name(handle), handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 662 | fd = handle_to_fd(handle); |
| 663 | if (fd >= 0) { |
| 664 | ret = fstat(fd, &st); |
| 665 | if (ret < 0) { |
| 666 | status = errno_to_portable(errno); |
| 667 | } else { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 668 | stat_to_attrib(&st, &a); |
| 669 | send_attrib(id, &a); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 670 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 671 | } |
| 672 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 673 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 674 | send_status(id, status); |
| 675 | } |
| 676 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 677 | static struct timeval * |
Damien Miller | f58b58c | 2003-11-17 21:18:23 +1100 | [diff] [blame] | 678 | attrib_to_tv(const Attrib *a) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 679 | { |
| 680 | static struct timeval tv[2]; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 681 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 682 | tv[0].tv_sec = a->atime; |
| 683 | tv[0].tv_usec = 0; |
| 684 | tv[1].tv_sec = a->mtime; |
| 685 | tv[1].tv_usec = 0; |
| 686 | return tv; |
| 687 | } |
| 688 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 689 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 690 | process_setstat(void) |
| 691 | { |
| 692 | Attrib *a; |
| 693 | u_int32_t id; |
| 694 | char *name; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 695 | int status = SSH2_FX_OK, ret; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 696 | |
| 697 | id = get_int(); |
| 698 | name = get_string(NULL); |
| 699 | a = get_attrib(); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 700 | debug("request %u: setstat name \"%s\"", id, name); |
Damien Miller | 00c9217 | 2002-02-13 14:05:00 +1100 | [diff] [blame] | 701 | if (a->flags & SSH2_FILEXFER_ATTR_SIZE) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 702 | logit("set \"%s\" size %llu", name, a->size); |
Damien Miller | 00c9217 | 2002-02-13 14:05:00 +1100 | [diff] [blame] | 703 | ret = truncate(name, a->size); |
| 704 | if (ret == -1) |
| 705 | status = errno_to_portable(errno); |
| 706 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 707 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 708 | logit("set \"%s\" mode %04o", name, a->perm); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 709 | ret = chmod(name, a->perm & 0777); |
| 710 | if (ret == -1) |
| 711 | status = errno_to_portable(errno); |
| 712 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 713 | if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 714 | char buf[64]; |
| 715 | time_t t = a->mtime; |
| 716 | |
| 717 | strftime(buf, sizeof(buf), "%Y%m%d-%H:%M:%S", |
| 718 | localtime(&t)); |
| 719 | logit("set \"%s\" modtime %s", name, buf); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 720 | ret = utimes(name, attrib_to_tv(a)); |
| 721 | if (ret == -1) |
| 722 | status = errno_to_portable(errno); |
| 723 | } |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 724 | if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 725 | logit("set \"%s\" owner %lu group %lu", name, |
| 726 | (u_long)a->uid, (u_long)a->gid); |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 727 | ret = chown(name, a->uid, a->gid); |
| 728 | if (ret == -1) |
| 729 | status = errno_to_portable(errno); |
| 730 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 731 | send_status(id, status); |
| 732 | xfree(name); |
| 733 | } |
| 734 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 735 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 736 | process_fsetstat(void) |
| 737 | { |
| 738 | Attrib *a; |
| 739 | u_int32_t id; |
| 740 | int handle, fd, ret; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 741 | int status = SSH2_FX_OK; |
Kevin Steves | f7ffab3 | 2001-01-24 20:11:06 +0000 | [diff] [blame] | 742 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 743 | id = get_int(); |
| 744 | handle = get_handle(); |
| 745 | a = get_attrib(); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 746 | debug("request %u: fsetstat handle %d", id, handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 747 | fd = handle_to_fd(handle); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 748 | if (fd < 0) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 749 | status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 750 | } else { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 751 | char *name = handle_to_name(handle); |
| 752 | |
Damien Miller | 00c9217 | 2002-02-13 14:05:00 +1100 | [diff] [blame] | 753 | if (a->flags & SSH2_FILEXFER_ATTR_SIZE) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 754 | logit("set \"%s\" size %llu", name, a->size); |
Damien Miller | 00c9217 | 2002-02-13 14:05:00 +1100 | [diff] [blame] | 755 | ret = ftruncate(fd, a->size); |
| 756 | if (ret == -1) |
| 757 | status = errno_to_portable(errno); |
| 758 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 759 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 760 | logit("set \"%s\" mode %04o", name, a->perm); |
Ben Lindstrom | 200e3c9 | 2001-01-15 01:56:46 +0000 | [diff] [blame] | 761 | #ifdef HAVE_FCHMOD |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 762 | ret = fchmod(fd, a->perm & 0777); |
Ben Lindstrom | 200e3c9 | 2001-01-15 01:56:46 +0000 | [diff] [blame] | 763 | #else |
Kevin Steves | b6b37ba | 2001-01-24 20:01:44 +0000 | [diff] [blame] | 764 | ret = chmod(name, a->perm & 0777); |
Ben Lindstrom | 200e3c9 | 2001-01-15 01:56:46 +0000 | [diff] [blame] | 765 | #endif |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 766 | if (ret == -1) |
| 767 | status = errno_to_portable(errno); |
| 768 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 769 | if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 770 | char buf[64]; |
| 771 | time_t t = a->mtime; |
| 772 | |
| 773 | strftime(buf, sizeof(buf), "%Y%m%d-%H:%M:%S", |
| 774 | localtime(&t)); |
| 775 | logit("set \"%s\" modtime %s", name, buf); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 776 | #ifdef HAVE_FUTIMES |
| 777 | ret = futimes(fd, attrib_to_tv(a)); |
| 778 | #else |
| 779 | ret = utimes(name, attrib_to_tv(a)); |
| 780 | #endif |
| 781 | if (ret == -1) |
| 782 | status = errno_to_portable(errno); |
| 783 | } |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 784 | if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 785 | logit("set \"%s\" owner %lu group %lu", name, |
| 786 | (u_long)a->uid, (u_long)a->gid); |
Ben Lindstrom | 34bb0c7 | 2001-02-13 02:40:56 +0000 | [diff] [blame] | 787 | #ifdef HAVE_FCHOWN |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 788 | ret = fchown(fd, a->uid, a->gid); |
Ben Lindstrom | 34bb0c7 | 2001-02-13 02:40:56 +0000 | [diff] [blame] | 789 | #else |
| 790 | ret = chown(name, a->uid, a->gid); |
| 791 | #endif |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 792 | if (ret == -1) |
| 793 | status = errno_to_portable(errno); |
| 794 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 795 | } |
| 796 | send_status(id, status); |
| 797 | } |
| 798 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 799 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 800 | process_opendir(void) |
| 801 | { |
| 802 | DIR *dirp = NULL; |
| 803 | char *path; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 804 | int handle, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 805 | u_int32_t id; |
| 806 | |
| 807 | id = get_int(); |
| 808 | path = get_string(NULL); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 809 | debug3("request %u: opendir", id); |
| 810 | logit("opendir \"%s\"", path); |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 811 | dirp = opendir(path); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 812 | if (dirp == NULL) { |
| 813 | status = errno_to_portable(errno); |
| 814 | } else { |
Damien Miller | 0011138 | 2003-03-10 11:21:17 +1100 | [diff] [blame] | 815 | handle = handle_new(HANDLE_DIR, path, 0, dirp); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 816 | if (handle < 0) { |
| 817 | closedir(dirp); |
| 818 | } else { |
| 819 | send_handle(id, handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 820 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 821 | } |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 822 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 823 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 824 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 825 | send_status(id, status); |
| 826 | xfree(path); |
| 827 | } |
| 828 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 829 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 830 | process_readdir(void) |
| 831 | { |
| 832 | DIR *dirp; |
| 833 | struct dirent *dp; |
| 834 | char *path; |
| 835 | int handle; |
| 836 | u_int32_t id; |
| 837 | |
| 838 | id = get_int(); |
| 839 | handle = get_handle(); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 840 | debug("request %u: readdir \"%s\" (handle %d)", id, |
| 841 | handle_to_name(handle), handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 842 | dirp = handle_to_dir(handle); |
| 843 | path = handle_to_name(handle); |
| 844 | if (dirp == NULL || path == NULL) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 845 | send_status(id, SSH2_FX_FAILURE); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 846 | } else { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 847 | struct stat st; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 848 | char pathname[MAXPATHLEN]; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 849 | Stat *stats; |
| 850 | int nstats = 10, count = 0, i; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 851 | |
Damien Miller | 07d86be | 2006-03-26 14:19:21 +1100 | [diff] [blame] | 852 | stats = xcalloc(nstats, sizeof(Stat)); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 853 | while ((dp = readdir(dirp)) != NULL) { |
| 854 | if (count >= nstats) { |
| 855 | nstats *= 2; |
Damien Miller | 3681209 | 2006-03-26 14:22:47 +1100 | [diff] [blame] | 856 | stats = xrealloc(stats, nstats, sizeof(Stat)); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 857 | } |
| 858 | /* XXX OVERFLOW ? */ |
Ben Lindstrom | 95148e3 | 2001-08-06 21:30:53 +0000 | [diff] [blame] | 859 | snprintf(pathname, sizeof pathname, "%s%s%s", path, |
| 860 | strcmp(path, "/") ? "/" : "", dp->d_name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 861 | if (lstat(pathname, &st) < 0) |
| 862 | continue; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 863 | stat_to_attrib(&st, &(stats[count].attrib)); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 864 | stats[count].name = xstrdup(dp->d_name); |
Damien Miller | e1a4981 | 2002-09-12 09:54:25 +1000 | [diff] [blame] | 865 | stats[count].long_name = ls_file(dp->d_name, &st, 0); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 866 | count++; |
| 867 | /* send up to 100 entries in one message */ |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 868 | /* XXX check packet size instead */ |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 869 | if (count == 100) |
| 870 | break; |
| 871 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 872 | if (count > 0) { |
| 873 | send_names(id, count, stats); |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 874 | for (i = 0; i < count; i++) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 875 | xfree(stats[i].name); |
| 876 | xfree(stats[i].long_name); |
| 877 | } |
| 878 | } else { |
| 879 | send_status(id, SSH2_FX_EOF); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 880 | } |
| 881 | xfree(stats); |
| 882 | } |
| 883 | } |
| 884 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 885 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 886 | process_remove(void) |
| 887 | { |
| 888 | char *name; |
| 889 | u_int32_t id; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 890 | int status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 891 | int ret; |
| 892 | |
| 893 | id = get_int(); |
| 894 | name = get_string(NULL); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 895 | debug3("request %u: remove", id); |
| 896 | logit("remove name \"%s\"", name); |
Kevin Steves | a074feb | 2000-12-21 22:33:45 +0000 | [diff] [blame] | 897 | ret = unlink(name); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 898 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 899 | send_status(id, status); |
| 900 | xfree(name); |
| 901 | } |
| 902 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 903 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 904 | process_mkdir(void) |
| 905 | { |
| 906 | Attrib *a; |
| 907 | u_int32_t id; |
| 908 | char *name; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 909 | int ret, mode, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 910 | |
| 911 | id = get_int(); |
| 912 | name = get_string(NULL); |
| 913 | a = get_attrib(); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 914 | mode = (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ? |
| 915 | a->perm & 0777 : 0777; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 916 | debug3("request %u: mkdir", id); |
| 917 | logit("mkdir name \"%s\" mode 0%o", name, mode); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 918 | ret = mkdir(name, mode); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 919 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 920 | send_status(id, status); |
| 921 | xfree(name); |
| 922 | } |
| 923 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 924 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 925 | process_rmdir(void) |
| 926 | { |
| 927 | u_int32_t id; |
| 928 | char *name; |
| 929 | int ret, status; |
| 930 | |
| 931 | id = get_int(); |
| 932 | name = get_string(NULL); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 933 | debug3("request %u: rmdir", id); |
| 934 | logit("rmdir name \"%s\"", name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 935 | ret = rmdir(name); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 936 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 937 | send_status(id, status); |
| 938 | xfree(name); |
| 939 | } |
| 940 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 941 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 942 | process_realpath(void) |
| 943 | { |
| 944 | char resolvedname[MAXPATHLEN]; |
| 945 | u_int32_t id; |
| 946 | char *path; |
| 947 | |
| 948 | id = get_int(); |
| 949 | path = get_string(NULL); |
Ben Lindstrom | fa1b3d0 | 2000-12-10 01:55:37 +0000 | [diff] [blame] | 950 | if (path[0] == '\0') { |
| 951 | xfree(path); |
| 952 | path = xstrdup("."); |
| 953 | } |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 954 | debug3("request %u: realpath", id); |
| 955 | verbose("realpath \"%s\"", path); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 956 | if (realpath(path, resolvedname) == NULL) { |
| 957 | send_status(id, errno_to_portable(errno)); |
| 958 | } else { |
| 959 | Stat s; |
| 960 | attrib_clear(&s.attrib); |
| 961 | s.name = s.long_name = resolvedname; |
| 962 | send_names(id, 1, &s); |
| 963 | } |
| 964 | xfree(path); |
| 965 | } |
| 966 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 967 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 968 | process_rename(void) |
| 969 | { |
| 970 | u_int32_t id; |
| 971 | char *oldpath, *newpath; |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 972 | int status; |
Damien Miller | b3207e8 | 2003-03-26 16:01:11 +1100 | [diff] [blame] | 973 | struct stat sb; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 974 | |
| 975 | id = get_int(); |
| 976 | oldpath = get_string(NULL); |
| 977 | newpath = get_string(NULL); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 978 | debug3("request %u: rename", id); |
| 979 | logit("rename old \"%s\" new \"%s\"", oldpath, newpath); |
Damien Miller | b3207e8 | 2003-03-26 16:01:11 +1100 | [diff] [blame] | 980 | status = SSH2_FX_FAILURE; |
| 981 | if (lstat(oldpath, &sb) == -1) |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 982 | status = errno_to_portable(errno); |
Damien Miller | b3207e8 | 2003-03-26 16:01:11 +1100 | [diff] [blame] | 983 | else if (S_ISREG(sb.st_mode)) { |
| 984 | /* Race-free rename of regular files */ |
Darren Tucker | aedc1d6 | 2004-06-25 17:06:02 +1000 | [diff] [blame] | 985 | if (link(oldpath, newpath) == -1) { |
Darren Tucker | e59b508 | 2004-06-28 16:01:19 +1000 | [diff] [blame] | 986 | if (errno == EOPNOTSUPP |
| 987 | #ifdef LINK_OPNOTSUPP_ERRNO |
| 988 | || errno == LINK_OPNOTSUPP_ERRNO |
| 989 | #endif |
| 990 | ) { |
Darren Tucker | aedc1d6 | 2004-06-25 17:06:02 +1000 | [diff] [blame] | 991 | struct stat st; |
| 992 | |
| 993 | /* |
| 994 | * fs doesn't support links, so fall back to |
| 995 | * stat+rename. This is racy. |
| 996 | */ |
| 997 | if (stat(newpath, &st) == -1) { |
| 998 | if (rename(oldpath, newpath) == -1) |
| 999 | status = |
| 1000 | errno_to_portable(errno); |
| 1001 | else |
| 1002 | status = SSH2_FX_OK; |
| 1003 | } |
| 1004 | } else { |
| 1005 | status = errno_to_portable(errno); |
| 1006 | } |
| 1007 | } else if (unlink(oldpath) == -1) { |
Damien Miller | b3207e8 | 2003-03-26 16:01:11 +1100 | [diff] [blame] | 1008 | status = errno_to_portable(errno); |
| 1009 | /* clean spare link */ |
| 1010 | unlink(newpath); |
| 1011 | } else |
| 1012 | status = SSH2_FX_OK; |
| 1013 | } else if (stat(newpath, &sb) == -1) { |
| 1014 | if (rename(oldpath, newpath) == -1) |
| 1015 | status = errno_to_portable(errno); |
| 1016 | else |
| 1017 | status = SSH2_FX_OK; |
| 1018 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1019 | send_status(id, status); |
| 1020 | xfree(oldpath); |
| 1021 | xfree(newpath); |
| 1022 | } |
| 1023 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 1024 | static void |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1025 | process_readlink(void) |
| 1026 | { |
| 1027 | u_int32_t id; |
Ben Lindstrom | abbb73d | 2001-05-17 03:14:57 +0000 | [diff] [blame] | 1028 | int len; |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 1029 | char buf[MAXPATHLEN]; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1030 | char *path; |
| 1031 | |
| 1032 | id = get_int(); |
| 1033 | path = get_string(NULL); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1034 | debug3("request %u: readlink", id); |
| 1035 | verbose("readlink \"%s\"", path); |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 1036 | if ((len = readlink(path, buf, sizeof(buf) - 1)) == -1) |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1037 | send_status(id, errno_to_portable(errno)); |
| 1038 | else { |
| 1039 | Stat s; |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 1040 | |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 1041 | buf[len] = '\0'; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1042 | attrib_clear(&s.attrib); |
Darren Tucker | 3f9fdc7 | 2004-06-22 12:56:01 +1000 | [diff] [blame] | 1043 | s.name = s.long_name = buf; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1044 | send_names(id, 1, &s); |
| 1045 | } |
| 1046 | xfree(path); |
| 1047 | } |
| 1048 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 1049 | static void |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1050 | process_symlink(void) |
| 1051 | { |
| 1052 | u_int32_t id; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1053 | char *oldpath, *newpath; |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 1054 | int ret, status; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1055 | |
| 1056 | id = get_int(); |
| 1057 | oldpath = get_string(NULL); |
| 1058 | newpath = get_string(NULL); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1059 | debug3("request %u: symlink", id); |
| 1060 | logit("symlink old \"%s\" new \"%s\"", oldpath, newpath); |
Damien Miller | 9e51a73 | 2003-02-24 11:58:44 +1100 | [diff] [blame] | 1061 | /* this will fail if 'newpath' exists */ |
| 1062 | ret = symlink(oldpath, newpath); |
| 1063 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1064 | send_status(id, status); |
| 1065 | xfree(oldpath); |
| 1066 | xfree(newpath); |
| 1067 | } |
| 1068 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 1069 | static void |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1070 | process_extended(void) |
| 1071 | { |
| 1072 | u_int32_t id; |
| 1073 | char *request; |
| 1074 | |
| 1075 | id = get_int(); |
| 1076 | request = get_string(NULL); |
| 1077 | send_status(id, SSH2_FX_OP_UNSUPPORTED); /* MUST */ |
| 1078 | xfree(request); |
| 1079 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1080 | |
| 1081 | /* stolen from ssh-agent */ |
| 1082 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 1083 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1084 | process(void) |
| 1085 | { |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 1086 | u_int msg_len; |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 1087 | u_int buf_len; |
| 1088 | u_int consumed; |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 1089 | u_int type; |
| 1090 | u_char *cp; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1091 | |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 1092 | buf_len = buffer_len(&iqueue); |
| 1093 | if (buf_len < 5) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1094 | return; /* Incomplete message. */ |
Damien Miller | 708d21c | 2002-01-22 23:18:15 +1100 | [diff] [blame] | 1095 | cp = buffer_ptr(&iqueue); |
Damien Miller | 3f94188 | 2006-03-31 23:13:02 +1100 | [diff] [blame] | 1096 | msg_len = get_u32(cp); |
Damien Miller | 5444618 | 2006-01-02 23:40:50 +1100 | [diff] [blame] | 1097 | if (msg_len > SFTP_MAX_MSG_LENGTH) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1098 | error("bad message from %s local user %s", |
| 1099 | client_addr, pw->pw_name); |
| 1100 | cleanup_exit(11); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1101 | } |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 1102 | if (buf_len < msg_len + 4) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1103 | return; |
| 1104 | buffer_consume(&iqueue, 4); |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 1105 | buf_len -= 4; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1106 | type = buffer_get_char(&iqueue); |
| 1107 | switch (type) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1108 | case SSH2_FXP_INIT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1109 | process_init(); |
| 1110 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1111 | case SSH2_FXP_OPEN: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1112 | process_open(); |
| 1113 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1114 | case SSH2_FXP_CLOSE: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1115 | process_close(); |
| 1116 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1117 | case SSH2_FXP_READ: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1118 | process_read(); |
| 1119 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1120 | case SSH2_FXP_WRITE: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1121 | process_write(); |
| 1122 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1123 | case SSH2_FXP_LSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1124 | process_lstat(); |
| 1125 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1126 | case SSH2_FXP_FSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1127 | process_fstat(); |
| 1128 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1129 | case SSH2_FXP_SETSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1130 | process_setstat(); |
| 1131 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1132 | case SSH2_FXP_FSETSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1133 | process_fsetstat(); |
| 1134 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1135 | case SSH2_FXP_OPENDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1136 | process_opendir(); |
| 1137 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1138 | case SSH2_FXP_READDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1139 | process_readdir(); |
| 1140 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1141 | case SSH2_FXP_REMOVE: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1142 | process_remove(); |
| 1143 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1144 | case SSH2_FXP_MKDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1145 | process_mkdir(); |
| 1146 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1147 | case SSH2_FXP_RMDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1148 | process_rmdir(); |
| 1149 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1150 | case SSH2_FXP_REALPATH: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1151 | process_realpath(); |
| 1152 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1153 | case SSH2_FXP_STAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1154 | process_stat(); |
| 1155 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1156 | case SSH2_FXP_RENAME: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1157 | process_rename(); |
| 1158 | break; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1159 | case SSH2_FXP_READLINK: |
| 1160 | process_readlink(); |
| 1161 | break; |
| 1162 | case SSH2_FXP_SYMLINK: |
| 1163 | process_symlink(); |
| 1164 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1165 | case SSH2_FXP_EXTENDED: |
| 1166 | process_extended(); |
| 1167 | break; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1168 | default: |
| 1169 | error("Unknown message %d", type); |
| 1170 | break; |
| 1171 | } |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 1172 | /* discard the remaining bytes from the current packet */ |
| 1173 | if (buf_len < buffer_len(&iqueue)) |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1174 | fatal("iqueue grew unexpectedly"); |
Ben Lindstrom | 2c14047 | 2002-06-06 21:57:54 +0000 | [diff] [blame] | 1175 | consumed = buf_len - buffer_len(&iqueue); |
| 1176 | if (msg_len < consumed) |
| 1177 | fatal("msg_len %d < consumed %d", msg_len, consumed); |
| 1178 | if (msg_len > consumed) |
| 1179 | buffer_consume(&iqueue, msg_len - consumed); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1180 | } |
| 1181 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1182 | /* Cleanup handler that logs active handles upon normal exit */ |
| 1183 | void |
| 1184 | cleanup_exit(int i) |
| 1185 | { |
| 1186 | if (pw != NULL && client_addr != NULL) { |
| 1187 | handle_log_exit(); |
| 1188 | logit("session closed for local user %s from [%s]", |
| 1189 | pw->pw_name, client_addr); |
| 1190 | } |
| 1191 | _exit(i); |
| 1192 | } |
| 1193 | |
| 1194 | static void |
| 1195 | usage(void) |
| 1196 | { |
| 1197 | extern char *__progname; |
| 1198 | |
| 1199 | fprintf(stderr, |
| 1200 | "usage: %s [-he] [-l log_level] [-f log_facility]\n", __progname); |
| 1201 | exit(1); |
| 1202 | } |
| 1203 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1204 | int |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1205 | main(int argc, char **argv) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1206 | { |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1207 | fd_set *rset, *wset; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1208 | int in, out, max, ch, skipargs = 0, log_stderr = 0; |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1209 | ssize_t len, olen, set_size; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1210 | SyslogFacility log_facility = SYSLOG_FACILITY_AUTH; |
| 1211 | char *cp; |
| 1212 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1213 | extern char *optarg; |
| 1214 | extern char *__progname; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1215 | |
Darren Tucker | ce321d8 | 2005-10-03 18:11:24 +1000 | [diff] [blame] | 1216 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
| 1217 | sanitise_stdfd(); |
| 1218 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1219 | __progname = ssh_get_progname(argv[0]); |
| 1220 | log_init(__progname, log_level, log_facility, log_stderr); |
Ben Lindstrom | c7f4ccd | 2001-03-15 00:09:15 +0000 | [diff] [blame] | 1221 | |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1222 | while (!skipargs && (ch = getopt(argc, argv, "C:f:l:che")) != -1) { |
| 1223 | switch (ch) { |
| 1224 | case 'c': |
| 1225 | /* |
| 1226 | * Ignore all arguments if we are invoked as a |
| 1227 | * shell using "sftp-server -c command" |
| 1228 | */ |
| 1229 | skipargs = 1; |
| 1230 | break; |
| 1231 | case 'e': |
| 1232 | log_stderr = 1; |
| 1233 | break; |
| 1234 | case 'l': |
| 1235 | log_level = log_level_number(optarg); |
| 1236 | if (log_level == SYSLOG_LEVEL_NOT_SET) |
| 1237 | error("Invalid log level \"%s\"", optarg); |
| 1238 | break; |
| 1239 | case 'f': |
| 1240 | log_facility = log_facility_number(optarg); |
| 1241 | if (log_level == SYSLOG_FACILITY_NOT_SET) |
| 1242 | error("Invalid log facility \"%s\"", optarg); |
| 1243 | break; |
| 1244 | case 'h': |
| 1245 | default: |
| 1246 | usage(); |
| 1247 | } |
| 1248 | } |
| 1249 | |
| 1250 | log_init(__progname, log_level, log_facility, log_stderr); |
| 1251 | |
| 1252 | if ((cp = getenv("SSH_CONNECTION")) != NULL) { |
| 1253 | client_addr = xstrdup(cp); |
| 1254 | if ((cp = strchr(client_addr, ' ')) == NULL) |
| 1255 | fatal("Malformed SSH_CONNECTION variable: \"%s\"", |
| 1256 | getenv("SSH_CONNECTION")); |
| 1257 | *cp = '\0'; |
| 1258 | } else |
| 1259 | client_addr = xstrdup("UNKNOWN"); |
| 1260 | |
| 1261 | if ((pw = getpwuid(getuid())) == NULL) |
| 1262 | fatal("No user found for uid %lu", (u_long)getuid()); |
| 1263 | pw = pwcopy(pw); |
| 1264 | |
| 1265 | logit("session opened for local user %s from [%s]", |
| 1266 | pw->pw_name, client_addr); |
| 1267 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1268 | handle_init(); |
| 1269 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1270 | in = dup(STDIN_FILENO); |
| 1271 | out = dup(STDOUT_FILENO); |
| 1272 | |
Damien Miller | 402b331 | 2001-04-14 00:28:42 +1000 | [diff] [blame] | 1273 | #ifdef HAVE_CYGWIN |
| 1274 | setmode(in, O_BINARY); |
| 1275 | setmode(out, O_BINARY); |
| 1276 | #endif |
| 1277 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1278 | max = 0; |
| 1279 | if (in > max) |
| 1280 | max = in; |
| 1281 | if (out > max) |
| 1282 | max = out; |
| 1283 | |
| 1284 | buffer_init(&iqueue); |
| 1285 | buffer_init(&oqueue); |
| 1286 | |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1287 | set_size = howmany(max + 1, NFDBITS) * sizeof(fd_mask); |
| 1288 | rset = (fd_set *)xmalloc(set_size); |
| 1289 | wset = (fd_set *)xmalloc(set_size); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1290 | |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1291 | for (;;) { |
| 1292 | memset(rset, 0, set_size); |
| 1293 | memset(wset, 0, set_size); |
| 1294 | |
| 1295 | FD_SET(in, rset); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1296 | olen = buffer_len(&oqueue); |
| 1297 | if (olen > 0) |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1298 | FD_SET(out, wset); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1299 | |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1300 | if (select(max+1, rset, wset, NULL, NULL) < 0) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1301 | if (errno == EINTR) |
| 1302 | continue; |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1303 | error("select: %s", strerror(errno)); |
| 1304 | cleanup_exit(2); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1305 | } |
| 1306 | |
| 1307 | /* copy stdin to iqueue */ |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1308 | if (FD_ISSET(in, rset)) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1309 | char buf[4*4096]; |
| 1310 | len = read(in, buf, sizeof buf); |
| 1311 | if (len == 0) { |
| 1312 | debug("read eof"); |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1313 | cleanup_exit(0); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1314 | } else if (len < 0) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1315 | error("read: %s", strerror(errno)); |
| 1316 | cleanup_exit(1); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1317 | } else { |
| 1318 | buffer_append(&iqueue, buf, len); |
| 1319 | } |
| 1320 | } |
| 1321 | /* send oqueue to stdout */ |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1322 | if (FD_ISSET(out, wset)) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1323 | len = write(out, buffer_ptr(&oqueue), olen); |
| 1324 | if (len < 0) { |
Damien Miller | fef95ad | 2006-07-10 20:46:55 +1000 | [diff] [blame] | 1325 | error("write: %s", strerror(errno)); |
| 1326 | cleanup_exit(1); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1327 | } else { |
| 1328 | buffer_consume(&oqueue, len); |
| 1329 | } |
| 1330 | } |
| 1331 | /* process requests from client */ |
| 1332 | process(); |
| 1333 | } |
| 1334 | } |