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
  78 #ifdef WITH_OPENSSL
  79 void
  80 ssh_packet_put_bignum2(struct ssh *ssh, BIGNUM * value)
  81 {
  82         int r;
  83
  84         if ((r = sshpkt_put_bignum2(ssh, value)) != 0)
  85                 fatal("%s: %s", __func__, ssh_err(r));
  86 }
  87
  88 # ifdef OPENSSL_HAS_ECC
  89 void
  90 ssh_packet_put_ecpoint(struct ssh *ssh, const EC_GROUP *curve,
  91     const EC_POINT *point)
  92 {
  93         int r;
  94
  95         if ((r = sshpkt_put_ec(ssh, point, curve)) != 0)
  96                 fatal("%s: %s", __func__, ssh_err(r));
  97 }
  98 # endif
  99 #endif /* WITH_OPENSSL */
 100
 101 void
 102 ssh_packet_send(struct ssh *ssh)
 103 {
 104         int r;
 105
 106         if ((r = sshpkt_send(ssh)) != 0)
 107                 fatal("%s: %s", __func__, ssh_err(r));
 108 }
 109
 110 u_int
 111 ssh_packet_get_char(struct ssh *ssh)
 112 {
 113         u_char ch;
 114         int r;
 115
 116         if ((r = sshpkt_get_u8(ssh, &ch)) != 0)
 117                 fatal("%s: %s", __func__, ssh_err(r));
 118         return ch;
 119 }
 120
 121 u_int
 122 ssh_packet_get_int(struct ssh *ssh)
 123 {
 124         u_int val;
 125         int r;
 126
 127         if ((r = sshpkt_get_u32(ssh, &val)) != 0)
 128                 fatal("%s: %s", __func__, ssh_err(r));
 129         return val;
 130 }
 131
 132 u_int64_t
 133 ssh_packet_get_int64(struct ssh *ssh)
 134 {
 135         u_int64_t val;
 136         int r;
 137
 138         if ((r = sshpkt_get_u64(ssh, &val)) != 0)
 139                 fatal("%s: %s", __func__, ssh_err(r));
 140         return val;
 141 }
 142
 143
 144 #ifdef WITH_OPENSSL
 145 void
 146 ssh_packet_get_bignum2(struct ssh *ssh, BIGNUM * value)
 147 {
 148         int r;
 149
 150         if ((r = sshpkt_get_bignum2(ssh, value)) != 0)
 151                 fatal("%s: %s", __func__, ssh_err(r));
 152 }
 153
 154 # ifdef OPENSSL_HAS_ECC
 155 void
 156 ssh_packet_get_ecpoint(struct ssh *ssh, const EC_GROUP *curve, EC_POINT *point)
 157 {
 158         int r;
 159
 160         if ((r = sshpkt_get_ec(ssh, point, curve)) != 0)
 161                 fatal("%s: %s", __func__, ssh_err(r));
 162 }
 163 # endif
 164 #endif /* WITH_OPENSSL */
 165
 166 void *
 167 ssh_packet_get_string(struct ssh *ssh, u_int *length_ptr)
 168 {
 169         int r;
 170         size_t len;
 171         u_char *val;
 172
 173         if ((r = sshpkt_get_string(ssh, &val, &len)) != 0)
 174                 fatal("%s: %s", __func__, ssh_err(r));
 175         if (length_ptr != NULL)
 176                 *length_ptr = (u_int)len;
 177         return val;
 178 }
 179
 180 const void *
 181 ssh_packet_get_string_ptr(struct ssh *ssh, u_int *length_ptr)
 182 {
 183         int r;
 184         size_t len;
 185         const u_char *val;
 186
 187         if ((r = sshpkt_get_string_direct(ssh, &val, &len)) != 0)
 188                 fatal("%s: %s", __func__, ssh_err(r));
 189         if (length_ptr != NULL)
 190                 *length_ptr = (u_int)len;
 191         return val;
 192 }
 193
 194 char *
 195 ssh_packet_get_cstring(struct ssh *ssh, u_int *length_ptr)
 196 {
 197         int r;
 198         size_t len;
 199         char *val;
 200
 201         if ((r = sshpkt_get_cstring(ssh, &val, &len)) != 0)
 202                 fatal("%s: %s", __func__, ssh_err(r));
 203         if (length_ptr != NULL)
 204                 *length_ptr = (u_int)len;
 205         return val;
 206 }
 207
 208 /* Old API, that had to be reimplemented */
 209
 210 void
 211 packet_set_connection(int fd_in, int fd_out)
 212 {
 213         active_state = ssh_packet_set_connection(active_state, fd_in, fd_out);
 214         if (active_state == NULL)
 215                 fatal("%s: ssh_packet_set_connection failed", __func__);
 216 }
 217
 218 u_int
 219 packet_get_char(void)
 220 {
 221         return (ssh_packet_get_char(active_state));
 222 }
 223
 224 u_int
 225 packet_get_int(void)
 226 {
 227         return (ssh_packet_get_int(active_state));
 228 }
 229
 230 int
 231 packet_read_seqnr(u_int32_t *seqnr)
 232 {
 233         u_char type;
 234         int r;
 235
 236         if ((r = ssh_packet_read_seqnr(active_state, &type, seqnr)) != 0)
 237                 sshpkt_fatal(active_state, __func__, r);
 238         return type;
 239 }
 240
 241 int
 242 packet_read_poll_seqnr(u_int32_t *seqnr)
 243 {
 244         u_char type;
 245         int r;
 246
 247         if ((r = ssh_packet_read_poll_seqnr(active_state, &type, seqnr)))
 248                 sshpkt_fatal(active_state, __func__, r);
 249         return type;
 250 }
 251
 252 void
 253 packet_close(void)
 254 {
 255         ssh_packet_close(active_state);
 256         active_state = NULL;
 257 }
 258
 259 void
 260 packet_process_incoming(const char *buf, u_int len)
 261 {
 262         int r;
 263
 264         if ((r = ssh_packet_process_incoming(active_state, buf, len)) != 0)
 265                 sshpkt_fatal(active_state, __func__, r);
 266 }
 267
 268 void
 269 packet_write_wait(void)
 270 {
 271         int r;
 272
 273         if ((r = ssh_packet_write_wait(active_state)) != 0)
 274                 sshpkt_fatal(active_state, __func__, r);
 275 }
 276
 277 void
 278 packet_write_poll(void)
 279 {
 280         int r;
 281
 282         if ((r = ssh_packet_write_poll(active_state)) != 0)
 283                 sshpkt_fatal(active_state, __func__, r);
 284 }
 285
 286 void
 287 packet_read_expect(int expected_type)
 288 {
 289         int r;
 290
 291         if ((r = ssh_packet_read_expect(active_state, expected_type)) != 0)
 292                 sshpkt_fatal(active_state, __func__, r);
 293 }
 294
 295 void
 296 packet_disconnect(const char *fmt, ...)
 297 {
 298         char buf[1024];
 299         va_list args;
 300
 301         va_start(args, fmt);
 302         vsnprintf(buf, sizeof(buf), fmt, args);
 303         va_end(args);
 304         ssh_packet_disconnect(active_state, "%s", buf);
 305 }
 306
 307 void
 308 packet_send_debug(const char *fmt, ...)
 309 {
 310         char buf[1024];
 311         va_list args;
 312
 313         va_start(args, fmt);
 314         vsnprintf(buf, sizeof(buf), fmt, args);
 315         va_end(args);
 316         ssh_packet_send_debug(active_state, "%s", buf);
 317 }