crypto/openssh/opacket.c

   1 /* Written by Markus Friedl. Placed in the public domain.  */
   2
   3 #include "includes.h"
   4
   5 #include "ssherr.h"
   6 #include "packet.h"
   7 #include "log.h"
   8
   9 struct ssh *active_state, *backup_state;
  10
  11 /* Map old to new API */
  12
  13 void
  14 ssh_packet_start(struct ssh *ssh, u_char type)
  15 {
  16         int r;
  17
  18         if ((r = sshpkt_start(ssh, type)) != 0)
  19                 fatal("%s: %s", __func__, ssh_err(r));
  20 }
  21
  22 void
  23 ssh_packet_put_char(struct ssh *ssh, int value)
  24 {
  25         u_char ch = value;
  26         int r;
  27
  28         if ((r = sshpkt_put_u8(ssh, ch)) != 0)
  29                 fatal("%s: %s", __func__, ssh_err(r));
  30 }
  31
  32 void
  33 ssh_packet_put_int(struct ssh *ssh, u_int value)
  34 {
  35         int r;
  36
  37         if ((r = sshpkt_put_u32(ssh, value)) != 0)
  38                 fatal("%s: %s", __func__, ssh_err(r));
  39 }
  40
  41 void
  42 ssh_packet_put_int64(struct ssh *ssh, u_int64_t value)
  43 {
  44         int r;
  45
  46         if ((r = sshpkt_put_u64(ssh, value)) != 0)
  47                 fatal("%s: %s", __func__, ssh_err(r));
  48 }
  49
  50 void
  51 ssh_packet_put_string(struct ssh *ssh, const void *buf, u_int len)
  52 {
  53         int r;
  54
  55         if ((r = sshpkt_put_string(ssh, buf, len)) != 0)
  56                 fatal("%s: %s", __func__, ssh_err(r));
  57 }
  58
  59 void
  60 ssh_packet_put_cstring(struct ssh *ssh, const char *str)
  61 {
  62         int r;
  63
  64         if ((r = sshpkt_put_cstring(ssh, str)) != 0)
  65                 fatal("%s: %s", __func__, ssh_err(r));
  66 }
  67
  68 void
  69 ssh_packet_put_raw(struct ssh *ssh, const void *buf, u_int len)
  70 {
  71         int r;
  72
  73         if ((r = sshpkt_put(ssh, buf, len)) != 0)
  74                 fatal("%s: %s", __func__, ssh_err(r));
  75 }
  76
  77 #ifdef WITH_SSH1
  78 void
  79 ssh_packet_put_bignum(struct ssh *ssh, BIGNUM * value)
  80 {
  81         int r;
  82
  83         if ((r = sshpkt_put_bignum1(ssh, value)) != 0)
  84                 fatal("%s: %s", __func__, ssh_err(r));
  85 }
  86 #endif
  87
  88 #ifdef WITH_OPENSSL
  89 void
  90 ssh_packet_put_bignum2(struct ssh *ssh, BIGNUM * value)
  91 {
  92         int r;
  93
  94         if ((r = sshpkt_put_bignum2(ssh, value)) != 0)
  95                 fatal("%s: %s", __func__, ssh_err(r));
  96 }
  97
  98 # ifdef OPENSSL_HAS_ECC
  99 void
 100 ssh_packet_put_ecpoint(struct ssh *ssh, const EC_GROUP *curve,
 101     const EC_POINT *point)
 102 {
 103         int r;
 104
 105         if ((r = sshpkt_put_ec(ssh, point, curve)) != 0)
 106                 fatal("%s: %s", __func__, ssh_err(r));
 107 }
 108 # endif
 109 #endif /* WITH_OPENSSL */
 110
 111 void
 112 ssh_packet_send(struct ssh *ssh)
 113 {
 114         int r;
 115
 116         if ((r = sshpkt_send(ssh)) != 0)
 117                 fatal("%s: %s", __func__, ssh_err(r));
 118 }
 119
 120 u_int
 121 ssh_packet_get_char(struct ssh *ssh)
 122 {
 123         u_char ch;
 124         int r;
 125
 126         if ((r = sshpkt_get_u8(ssh, &ch)) != 0)
 127                 fatal("%s: %s", __func__, ssh_err(r));
 128         return ch;
 129 }
 130
 131 u_int
 132 ssh_packet_get_int(struct ssh *ssh)
 133 {
 134         u_int val;
 135         int r;
 136
 137         if ((r = sshpkt_get_u32(ssh, &val)) != 0)
 138                 fatal("%s: %s", __func__, ssh_err(r));
 139         return val;
 140 }
 141
 142 u_int64_t
 143 ssh_packet_get_int64(struct ssh *ssh)
 144 {
 145         u_int64_t val;
 146         int r;
 147
 148         if ((r = sshpkt_get_u64(ssh, &val)) != 0)
 149                 fatal("%s: %s", __func__, ssh_err(r));
 150         return val;
 151 }
 152
 153 #ifdef WITH_SSH1
 154 void
 155 ssh_packet_get_bignum(struct ssh *ssh, BIGNUM * value)
 156 {
 157         int r;
 158
 159         if ((r = sshpkt_get_bignum1(ssh, value)) != 0)
 160                 fatal("%s: %s", __func__, ssh_err(r));
 161 }
 162 #endif
 163
 164 #ifdef WITH_OPENSSL
 165 void
 166 ssh_packet_get_bignum2(struct ssh *ssh, BIGNUM * value)
 167 {
 168         int r;
 169
 170         if ((r = sshpkt_get_bignum2(ssh, value)) != 0)
 171                 fatal("%s: %s", __func__, ssh_err(r));
 172 }
 173
 174 # ifdef OPENSSL_HAS_ECC
 175 void
 176 ssh_packet_get_ecpoint(struct ssh *ssh, const EC_GROUP *curve, EC_POINT *point)
 177 {
 178         int r;
 179
 180         if ((r = sshpkt_get_ec(ssh, point, curve)) != 0)
 181                 fatal("%s: %s", __func__, ssh_err(r));
 182 }
 183 # endif
 184 #endif /* WITH_OPENSSL */
 185
 186 void *
 187 ssh_packet_get_string(struct ssh *ssh, u_int *length_ptr)
 188 {
 189         int r;
 190         size_t len;
 191         u_char *val;
 192
 193         if ((r = sshpkt_get_string(ssh, &val, &len)) != 0)
 194                 fatal("%s: %s", __func__, ssh_err(r));
 195         if (length_ptr != NULL)
 196                 *length_ptr = (u_int)len;
 197         return val;
 198 }
 199
 200 const void *
 201 ssh_packet_get_string_ptr(struct ssh *ssh, u_int *length_ptr)
 202 {
 203         int r;
 204         size_t len;
 205         const u_char *val;
 206
 207         if ((r = sshpkt_get_string_direct(ssh, &val, &len)) != 0)
 208                 fatal("%s: %s", __func__, ssh_err(r));
 209         if (length_ptr != NULL)
 210                 *length_ptr = (u_int)len;
 211         return val;
 212 }
 213
 214 char *
 215 ssh_packet_get_cstring(struct ssh *ssh, u_int *length_ptr)
 216 {
 217         int r;
 218         size_t len;
 219         char *val;
 220
 221         if ((r = sshpkt_get_cstring(ssh, &val, &len)) != 0)
 222                 fatal("%s: %s", __func__, ssh_err(r));
 223         if (length_ptr != NULL)
 224                 *length_ptr = (u_int)len;
 225         return val;
 226 }
 227
 228 /* Old API, that had to be reimplemented */
 229
 230 void
 231 packet_set_connection(int fd_in, int fd_out)
 232 {
 233         active_state = ssh_packet_set_connection(active_state, fd_in, fd_out);
 234         if (active_state == NULL)
 235                 fatal("%s: ssh_packet_set_connection failed", __func__);
 236 }
 237
 238 u_int
 239 packet_get_char(void)
 240 {
 241         return (ssh_packet_get_char(active_state));
 242 }
 243
 244 u_int
 245 packet_get_int(void)
 246 {
 247         return (ssh_packet_get_int(active_state));
 248 }
 249
 250 int
 251 packet_read_seqnr(u_int32_t *seqnr)
 252 {
 253         u_char type;
 254         int r;
 255
 256         if ((r = ssh_packet_read_seqnr(active_state, &type, seqnr)) != 0)
 257                 sshpkt_fatal(active_state, __func__, r);
 258         return type;
 259 }
 260
 261 int
 262 packet_read_poll_seqnr(u_int32_t *seqnr)
 263 {
 264         u_char type;
 265         int r;
 266
 267         if ((r = ssh_packet_read_poll_seqnr(active_state, &type, seqnr)))
 268                 sshpkt_fatal(active_state, __func__, r);
 269         return type;
 270 }
 271
 272 void
 273 packet_close(void)
 274 {
 275         ssh_packet_close(active_state);
 276         active_state = NULL;
 277 }
 278
 279 void
 280 packet_process_incoming(const char *buf, u_int len)
 281 {
 282         int r;
 283
 284         if ((r = ssh_packet_process_incoming(active_state, buf, len)) != 0)
 285                 sshpkt_fatal(active_state, __func__, r);
 286 }
 287
 288 void
 289 packet_write_wait(void)
 290 {
 291         int r;
 292
 293         if ((r = ssh_packet_write_wait(active_state)) != 0)
 294                 sshpkt_fatal(active_state, __func__, r);
 295 }
 296
 297 void
 298 packet_write_poll(void)
 299 {
 300         int r;
 301
 302         if ((r = ssh_packet_write_poll(active_state)) != 0)
 303                 sshpkt_fatal(active_state, __func__, r);
 304 }
 305
 306 void
 307 packet_read_expect(int expected_type)
 308 {
 309         int r;
 310
 311         if ((r = ssh_packet_read_expect(active_state, expected_type)) != 0)
 312                 sshpkt_fatal(active_state, __func__, r);
 313 }
 314
 315 void
 316 packet_disconnect(const char *fmt, ...)
 317 {
 318         char buf[1024];
 319         va_list args;
 320
 321         va_start(args, fmt);
 322         vsnprintf(buf, sizeof(buf), fmt, args);
 323         va_end(args);
 324         ssh_packet_disconnect(active_state, "%s", buf);
 325 }
 326
 327 void
 328 packet_send_debug(const char *fmt, ...)
 329 {
 330         char buf[1024];
 331         va_list args;
 332
 333         va_start(args, fmt);
 334         vsnprintf(buf, sizeof(buf), fmt, args);
 335         va_end(args);
 336         ssh_packet_send_debug(active_state, "%s", buf);
 337 }