bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1995 Danny Gasparovski. |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3 | * |
| 4 | * Please read the file COPYRIGHT for the |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 5 | * terms and conditions of the copyright. |
| 6 | */ |
| 7 | |
aliguori | e1c5a2b | 2009-01-08 19:18:21 +0000 | [diff] [blame] | 8 | #include "qemu-common.h" |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 9 | #include <slirp.h> |
| 10 | #include "ip_icmp.h" |
bellard | ec530c8 | 2006-04-25 22:36:06 +0000 | [diff] [blame] | 11 | #ifdef __sun__ |
| 12 | #include <sys/filio.h> |
| 13 | #endif |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 14 | |
blueswir1 | 9634d90 | 2007-10-26 19:01:16 +0000 | [diff] [blame] | 15 | static void sofcantrcvmore(struct socket *so); |
| 16 | static void sofcantsendmore(struct socket *so); |
| 17 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 18 | struct socket * |
blueswir1 | 511d2b1 | 2009-03-07 15:32:56 +0000 | [diff] [blame] | 19 | solookup(struct socket *head, struct in_addr laddr, u_int lport, |
| 20 | struct in_addr faddr, u_int fport) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 21 | { |
| 22 | struct socket *so; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 23 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 24 | for (so = head->so_next; so != head; so = so->so_next) { |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 25 | if (so->so_lport == lport && |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 26 | so->so_laddr.s_addr == laddr.s_addr && |
| 27 | so->so_faddr.s_addr == faddr.s_addr && |
| 28 | so->so_fport == fport) |
| 29 | break; |
| 30 | } |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 31 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 32 | if (so == head) |
| 33 | return (struct socket *)NULL; |
| 34 | return so; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 35 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 36 | } |
| 37 | |
| 38 | /* |
| 39 | * Create a new socket, initialise the fields |
| 40 | * It is the responsibility of the caller to |
| 41 | * insque() it into the correct linked-list |
| 42 | */ |
| 43 | struct socket * |
Jan Kiszka | 460fec6 | 2009-06-24 14:42:31 +0200 | [diff] [blame] | 44 | socreate(Slirp *slirp) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 45 | { |
| 46 | struct socket *so; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 47 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 48 | so = (struct socket *)malloc(sizeof(struct socket)); |
| 49 | if(so) { |
| 50 | memset(so, 0, sizeof(struct socket)); |
| 51 | so->so_state = SS_NOFDREF; |
| 52 | so->s = -1; |
Jan Kiszka | 460fec6 | 2009-06-24 14:42:31 +0200 | [diff] [blame] | 53 | so->slirp = slirp; |
Jan Kiszka | 7bd43ec | 2013-02-22 20:47:10 +0100 | [diff] [blame] | 54 | so->pollfds_idx = -1; |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 55 | } |
| 56 | return(so); |
| 57 | } |
| 58 | |
| 59 | /* |
| 60 | * remque and free a socket, clobber cache |
| 61 | */ |
| 62 | void |
blueswir1 | 511d2b1 | 2009-03-07 15:32:56 +0000 | [diff] [blame] | 63 | sofree(struct socket *so) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 64 | { |
Jan Kiszka | 460fec6 | 2009-06-24 14:42:31 +0200 | [diff] [blame] | 65 | Slirp *slirp = so->slirp; |
| 66 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 67 | if (so->so_emu==EMU_RSH && so->extra) { |
| 68 | sofree(so->extra); |
| 69 | so->extra=NULL; |
| 70 | } |
Jan Kiszka | 460fec6 | 2009-06-24 14:42:31 +0200 | [diff] [blame] | 71 | if (so == slirp->tcp_last_so) { |
| 72 | slirp->tcp_last_so = &slirp->tcb; |
| 73 | } else if (so == slirp->udp_last_so) { |
| 74 | slirp->udp_last_so = &slirp->udb; |
Jan Kiszka | e6d43cf | 2011-07-20 12:20:18 +0200 | [diff] [blame] | 75 | } else if (so == slirp->icmp_last_so) { |
| 76 | slirp->icmp_last_so = &slirp->icmp; |
Jan Kiszka | 460fec6 | 2009-06-24 14:42:31 +0200 | [diff] [blame] | 77 | } |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 78 | m_free(so->so_m); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 79 | |
| 80 | if(so->so_next && so->so_prev) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 81 | remque(so); /* crashes if so is not in a queue */ |
| 82 | |
| 83 | free(so); |
| 84 | } |
| 85 | |
aliguori | e1c5a2b | 2009-01-08 19:18:21 +0000 | [diff] [blame] | 86 | size_t sopreprbuf(struct socket *so, struct iovec *iov, int *np) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 87 | { |
aliguori | e1c5a2b | 2009-01-08 19:18:21 +0000 | [diff] [blame] | 88 | int n, lss, total; |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 89 | struct sbuf *sb = &so->so_snd; |
| 90 | int len = sb->sb_datalen - sb->sb_cc; |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 91 | int mss = so->so_tcpcb->t_maxseg; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 92 | |
aliguori | e1c5a2b | 2009-01-08 19:18:21 +0000 | [diff] [blame] | 93 | DEBUG_CALL("sopreprbuf"); |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 94 | DEBUG_ARG("so = %lx", (long )so); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 95 | |
aliguori | e1c5a2b | 2009-01-08 19:18:21 +0000 | [diff] [blame] | 96 | if (len <= 0) |
| 97 | return 0; |
| 98 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 99 | iov[0].iov_base = sb->sb_wptr; |
blueswir1 | 66029f6 | 2008-10-01 19:39:40 +0000 | [diff] [blame] | 100 | iov[1].iov_base = NULL; |
| 101 | iov[1].iov_len = 0; |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 102 | if (sb->sb_wptr < sb->sb_rptr) { |
| 103 | iov[0].iov_len = sb->sb_rptr - sb->sb_wptr; |
| 104 | /* Should never succeed, but... */ |
| 105 | if (iov[0].iov_len > len) |
| 106 | iov[0].iov_len = len; |
| 107 | if (iov[0].iov_len > mss) |
| 108 | iov[0].iov_len -= iov[0].iov_len%mss; |
| 109 | n = 1; |
| 110 | } else { |
| 111 | iov[0].iov_len = (sb->sb_data + sb->sb_datalen) - sb->sb_wptr; |
| 112 | /* Should never succeed, but... */ |
| 113 | if (iov[0].iov_len > len) iov[0].iov_len = len; |
| 114 | len -= iov[0].iov_len; |
| 115 | if (len) { |
| 116 | iov[1].iov_base = sb->sb_data; |
| 117 | iov[1].iov_len = sb->sb_rptr - sb->sb_data; |
| 118 | if(iov[1].iov_len > len) |
| 119 | iov[1].iov_len = len; |
| 120 | total = iov[0].iov_len + iov[1].iov_len; |
| 121 | if (total > mss) { |
| 122 | lss = total%mss; |
| 123 | if (iov[1].iov_len > lss) { |
| 124 | iov[1].iov_len -= lss; |
| 125 | n = 2; |
| 126 | } else { |
| 127 | lss -= iov[1].iov_len; |
| 128 | iov[0].iov_len -= lss; |
| 129 | n = 1; |
| 130 | } |
| 131 | } else |
| 132 | n = 2; |
| 133 | } else { |
| 134 | if (iov[0].iov_len > mss) |
| 135 | iov[0].iov_len -= iov[0].iov_len%mss; |
| 136 | n = 1; |
| 137 | } |
| 138 | } |
aliguori | e1c5a2b | 2009-01-08 19:18:21 +0000 | [diff] [blame] | 139 | if (np) |
| 140 | *np = n; |
| 141 | |
| 142 | return iov[0].iov_len + (n - 1) * iov[1].iov_len; |
| 143 | } |
| 144 | |
| 145 | /* |
| 146 | * Read from so's socket into sb_snd, updating all relevant sbuf fields |
| 147 | * NOTE: This will only be called if it is select()ed for reading, so |
| 148 | * a read() of 0 (or less) means it's disconnected |
| 149 | */ |
| 150 | int |
blueswir1 | 511d2b1 | 2009-03-07 15:32:56 +0000 | [diff] [blame] | 151 | soread(struct socket *so) |
aliguori | e1c5a2b | 2009-01-08 19:18:21 +0000 | [diff] [blame] | 152 | { |
| 153 | int n, nn; |
| 154 | struct sbuf *sb = &so->so_snd; |
| 155 | struct iovec iov[2]; |
| 156 | |
| 157 | DEBUG_CALL("soread"); |
| 158 | DEBUG_ARG("so = %lx", (long )so); |
| 159 | |
| 160 | /* |
| 161 | * No need to check if there's enough room to read. |
| 162 | * soread wouldn't have been called if there weren't |
| 163 | */ |
| 164 | sopreprbuf(so, iov, &n); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 165 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 166 | #ifdef HAVE_READV |
| 167 | nn = readv(so->s, (struct iovec *)iov, n); |
| 168 | DEBUG_MISC((dfd, " ... read nn = %d bytes\n", nn)); |
| 169 | #else |
Blue Swirl | 00aa004 | 2011-07-23 20:04:29 +0000 | [diff] [blame] | 170 | nn = qemu_recv(so->s, iov[0].iov_base, iov[0].iov_len,0); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 171 | #endif |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 172 | if (nn <= 0) { |
| 173 | if (nn < 0 && (errno == EINTR || errno == EAGAIN)) |
| 174 | return 0; |
| 175 | else { |
| 176 | DEBUG_MISC((dfd, " --- soread() disconnected, nn = %d, errno = %d-%s\n", nn, errno,strerror(errno))); |
| 177 | sofcantrcvmore(so); |
| 178 | tcp_sockclosed(sototcpcb(so)); |
| 179 | return -1; |
| 180 | } |
| 181 | } |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 182 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 183 | #ifndef HAVE_READV |
| 184 | /* |
| 185 | * If there was no error, try and read the second time round |
| 186 | * We read again if n = 2 (ie, there's another part of the buffer) |
| 187 | * and we read as much as we could in the first read |
| 188 | * We don't test for <= 0 this time, because there legitimately |
| 189 | * might not be any more data (since the socket is non-blocking), |
| 190 | * a close will be detected on next iteration. |
| 191 | * A return of -1 wont (shouldn't) happen, since it didn't happen above |
| 192 | */ |
bellard | 17444c9 | 2004-11-21 20:02:08 +0000 | [diff] [blame] | 193 | if (n == 2 && nn == iov[0].iov_len) { |
| 194 | int ret; |
Blue Swirl | 00aa004 | 2011-07-23 20:04:29 +0000 | [diff] [blame] | 195 | ret = qemu_recv(so->s, iov[1].iov_base, iov[1].iov_len,0); |
bellard | 17444c9 | 2004-11-21 20:02:08 +0000 | [diff] [blame] | 196 | if (ret > 0) |
| 197 | nn += ret; |
| 198 | } |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 199 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 200 | DEBUG_MISC((dfd, " ... read nn = %d bytes\n", nn)); |
| 201 | #endif |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 202 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 203 | /* Update fields */ |
| 204 | sb->sb_cc += nn; |
| 205 | sb->sb_wptr += nn; |
| 206 | if (sb->sb_wptr >= (sb->sb_data + sb->sb_datalen)) |
| 207 | sb->sb_wptr -= sb->sb_datalen; |
| 208 | return nn; |
| 209 | } |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 210 | |
aliguori | e1c5a2b | 2009-01-08 19:18:21 +0000 | [diff] [blame] | 211 | int soreadbuf(struct socket *so, const char *buf, int size) |
| 212 | { |
| 213 | int n, nn, copy = size; |
| 214 | struct sbuf *sb = &so->so_snd; |
| 215 | struct iovec iov[2]; |
| 216 | |
| 217 | DEBUG_CALL("soreadbuf"); |
| 218 | DEBUG_ARG("so = %lx", (long )so); |
| 219 | |
| 220 | /* |
| 221 | * No need to check if there's enough room to read. |
| 222 | * soread wouldn't have been called if there weren't |
| 223 | */ |
| 224 | if (sopreprbuf(so, iov, &n) < size) |
| 225 | goto err; |
| 226 | |
| 227 | nn = MIN(iov[0].iov_len, copy); |
| 228 | memcpy(iov[0].iov_base, buf, nn); |
| 229 | |
| 230 | copy -= nn; |
| 231 | buf += nn; |
| 232 | |
| 233 | if (copy == 0) |
| 234 | goto done; |
| 235 | |
| 236 | memcpy(iov[1].iov_base, buf, copy); |
| 237 | |
| 238 | done: |
| 239 | /* Update fields */ |
| 240 | sb->sb_cc += size; |
| 241 | sb->sb_wptr += size; |
| 242 | if (sb->sb_wptr >= (sb->sb_data + sb->sb_datalen)) |
| 243 | sb->sb_wptr -= sb->sb_datalen; |
| 244 | return size; |
| 245 | err: |
| 246 | |
| 247 | sofcantrcvmore(so); |
| 248 | tcp_sockclosed(sototcpcb(so)); |
| 249 | fprintf(stderr, "soreadbuf buffer to small"); |
| 250 | return -1; |
| 251 | } |
| 252 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 253 | /* |
| 254 | * Get urgent data |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 255 | * |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 256 | * When the socket is created, we set it SO_OOBINLINE, |
| 257 | * so when OOB data arrives, we soread() it and everything |
| 258 | * in the send buffer is sent as urgent data |
| 259 | */ |
| 260 | void |
blueswir1 | 511d2b1 | 2009-03-07 15:32:56 +0000 | [diff] [blame] | 261 | sorecvoob(struct socket *so) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 262 | { |
| 263 | struct tcpcb *tp = sototcpcb(so); |
| 264 | |
| 265 | DEBUG_CALL("sorecvoob"); |
| 266 | DEBUG_ARG("so = %lx", (long)so); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 267 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 268 | /* |
| 269 | * We take a guess at how much urgent data has arrived. |
| 270 | * In most situations, when urgent data arrives, the next |
| 271 | * read() should get all the urgent data. This guess will |
| 272 | * be wrong however if more data arrives just after the |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 273 | * urgent data, or the read() doesn't return all the |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 274 | * urgent data. |
| 275 | */ |
| 276 | soread(so); |
| 277 | tp->snd_up = tp->snd_una + so->so_snd.sb_cc; |
| 278 | tp->t_force = 1; |
| 279 | tcp_output(tp); |
| 280 | tp->t_force = 0; |
| 281 | } |
| 282 | |
| 283 | /* |
| 284 | * Send urgent data |
| 285 | * There's a lot duplicated code here, but... |
| 286 | */ |
| 287 | int |
blueswir1 | 511d2b1 | 2009-03-07 15:32:56 +0000 | [diff] [blame] | 288 | sosendoob(struct socket *so) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 289 | { |
| 290 | struct sbuf *sb = &so->so_rcv; |
| 291 | char buff[2048]; /* XXX Shouldn't be sending more oob data than this */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 292 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 293 | int n, len; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 294 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 295 | DEBUG_CALL("sosendoob"); |
| 296 | DEBUG_ARG("so = %lx", (long)so); |
| 297 | DEBUG_ARG("sb->sb_cc = %d", sb->sb_cc); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 298 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 299 | if (so->so_urgc > 2048) |
| 300 | so->so_urgc = 2048; /* XXXX */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 301 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 302 | if (sb->sb_rptr < sb->sb_wptr) { |
| 303 | /* We can send it directly */ |
aliguori | e1c5a2b | 2009-01-08 19:18:21 +0000 | [diff] [blame] | 304 | n = slirp_send(so, sb->sb_rptr, so->so_urgc, (MSG_OOB)); /* |MSG_DONTWAIT)); */ |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 305 | so->so_urgc -= n; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 306 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 307 | DEBUG_MISC((dfd, " --- sent %d bytes urgent data, %d urgent bytes left\n", n, so->so_urgc)); |
| 308 | } else { |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 309 | /* |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 310 | * Since there's no sendv or sendtov like writev, |
| 311 | * we must copy all data to a linear buffer then |
| 312 | * send it all |
| 313 | */ |
| 314 | len = (sb->sb_data + sb->sb_datalen) - sb->sb_rptr; |
| 315 | if (len > so->so_urgc) len = so->so_urgc; |
| 316 | memcpy(buff, sb->sb_rptr, len); |
| 317 | so->so_urgc -= len; |
| 318 | if (so->so_urgc) { |
| 319 | n = sb->sb_wptr - sb->sb_data; |
| 320 | if (n > so->so_urgc) n = so->so_urgc; |
| 321 | memcpy((buff + len), sb->sb_data, n); |
| 322 | so->so_urgc -= n; |
| 323 | len += n; |
| 324 | } |
aliguori | e1c5a2b | 2009-01-08 19:18:21 +0000 | [diff] [blame] | 325 | n = slirp_send(so, buff, len, (MSG_OOB)); /* |MSG_DONTWAIT)); */ |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 326 | #ifdef DEBUG |
| 327 | if (n != len) |
| 328 | DEBUG_ERROR((dfd, "Didn't send all data urgently XXXXX\n")); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 329 | #endif |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 330 | DEBUG_MISC((dfd, " ---2 sent %d bytes urgent data, %d urgent bytes left\n", n, so->so_urgc)); |
| 331 | } |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 332 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 333 | sb->sb_cc -= n; |
| 334 | sb->sb_rptr += n; |
| 335 | if (sb->sb_rptr >= (sb->sb_data + sb->sb_datalen)) |
| 336 | sb->sb_rptr -= sb->sb_datalen; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 337 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 338 | return n; |
| 339 | } |
| 340 | |
| 341 | /* |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 342 | * Write data from so_rcv to so's socket, |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 343 | * updating all sbuf field as necessary |
| 344 | */ |
| 345 | int |
blueswir1 | 511d2b1 | 2009-03-07 15:32:56 +0000 | [diff] [blame] | 346 | sowrite(struct socket *so) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 347 | { |
| 348 | int n,nn; |
| 349 | struct sbuf *sb = &so->so_rcv; |
| 350 | int len = sb->sb_cc; |
| 351 | struct iovec iov[2]; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 352 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 353 | DEBUG_CALL("sowrite"); |
| 354 | DEBUG_ARG("so = %lx", (long)so); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 355 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 356 | if (so->so_urgc) { |
| 357 | sosendoob(so); |
| 358 | if (sb->sb_cc == 0) |
| 359 | return 0; |
| 360 | } |
| 361 | |
| 362 | /* |
| 363 | * No need to check if there's something to write, |
| 364 | * sowrite wouldn't have been called otherwise |
| 365 | */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 366 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 367 | iov[0].iov_base = sb->sb_rptr; |
blueswir1 | 66029f6 | 2008-10-01 19:39:40 +0000 | [diff] [blame] | 368 | iov[1].iov_base = NULL; |
| 369 | iov[1].iov_len = 0; |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 370 | if (sb->sb_rptr < sb->sb_wptr) { |
| 371 | iov[0].iov_len = sb->sb_wptr - sb->sb_rptr; |
| 372 | /* Should never succeed, but... */ |
| 373 | if (iov[0].iov_len > len) iov[0].iov_len = len; |
| 374 | n = 1; |
| 375 | } else { |
| 376 | iov[0].iov_len = (sb->sb_data + sb->sb_datalen) - sb->sb_rptr; |
| 377 | if (iov[0].iov_len > len) iov[0].iov_len = len; |
| 378 | len -= iov[0].iov_len; |
| 379 | if (len) { |
| 380 | iov[1].iov_base = sb->sb_data; |
| 381 | iov[1].iov_len = sb->sb_wptr - sb->sb_data; |
| 382 | if (iov[1].iov_len > len) iov[1].iov_len = len; |
| 383 | n = 2; |
| 384 | } else |
| 385 | n = 1; |
| 386 | } |
| 387 | /* Check if there's urgent data to send, and if so, send it */ |
| 388 | |
| 389 | #ifdef HAVE_READV |
| 390 | nn = writev(so->s, (const struct iovec *)iov, n); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 391 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 392 | DEBUG_MISC((dfd, " ... wrote nn = %d bytes\n", nn)); |
| 393 | #else |
aliguori | e1c5a2b | 2009-01-08 19:18:21 +0000 | [diff] [blame] | 394 | nn = slirp_send(so, iov[0].iov_base, iov[0].iov_len,0); |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 395 | #endif |
| 396 | /* This should never happen, but people tell me it does *shrug* */ |
| 397 | if (nn < 0 && (errno == EAGAIN || errno == EINTR)) |
| 398 | return 0; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 399 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 400 | if (nn <= 0) { |
| 401 | DEBUG_MISC((dfd, " --- sowrite disconnected, so->so_state = %x, errno = %d\n", |
| 402 | so->so_state, errno)); |
| 403 | sofcantsendmore(so); |
| 404 | tcp_sockclosed(sototcpcb(so)); |
| 405 | return -1; |
| 406 | } |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 407 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 408 | #ifndef HAVE_READV |
bellard | 3bc2175 | 2004-11-24 20:39:26 +0000 | [diff] [blame] | 409 | if (n == 2 && nn == iov[0].iov_len) { |
| 410 | int ret; |
aliguori | e1c5a2b | 2009-01-08 19:18:21 +0000 | [diff] [blame] | 411 | ret = slirp_send(so, iov[1].iov_base, iov[1].iov_len,0); |
bellard | 3bc2175 | 2004-11-24 20:39:26 +0000 | [diff] [blame] | 412 | if (ret > 0) |
| 413 | nn += ret; |
| 414 | } |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 415 | DEBUG_MISC((dfd, " ... wrote nn = %d bytes\n", nn)); |
| 416 | #endif |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 417 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 418 | /* Update sbuf */ |
| 419 | sb->sb_cc -= nn; |
| 420 | sb->sb_rptr += nn; |
| 421 | if (sb->sb_rptr >= (sb->sb_data + sb->sb_datalen)) |
| 422 | sb->sb_rptr -= sb->sb_datalen; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 423 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 424 | /* |
| 425 | * If in DRAIN mode, and there's no more data, set |
| 426 | * it CANTSENDMORE |
| 427 | */ |
| 428 | if ((so->so_state & SS_FWDRAIN) && sb->sb_cc == 0) |
| 429 | sofcantsendmore(so); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 430 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 431 | return nn; |
| 432 | } |
| 433 | |
| 434 | /* |
| 435 | * recvfrom() a UDP socket |
| 436 | */ |
| 437 | void |
blueswir1 | 511d2b1 | 2009-03-07 15:32:56 +0000 | [diff] [blame] | 438 | sorecvfrom(struct socket *so) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 439 | { |
| 440 | struct sockaddr_in addr; |
balrog | 242acf3 | 2008-05-10 01:49:53 +0000 | [diff] [blame] | 441 | socklen_t addrlen = sizeof(struct sockaddr_in); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 442 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 443 | DEBUG_CALL("sorecvfrom"); |
| 444 | DEBUG_ARG("so = %lx", (long)so); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 445 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 446 | if (so->so_type == IPPROTO_ICMP) { /* This is a "ping" reply */ |
| 447 | char buff[256]; |
| 448 | int len; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 449 | |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 450 | len = recvfrom(so->s, buff, 256, 0, |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 451 | (struct sockaddr *)&addr, &addrlen); |
| 452 | /* XXX Check if reply is "correct"? */ |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 453 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 454 | if(len == -1 || len == 0) { |
| 455 | u_char code=ICMP_UNREACH_PORT; |
| 456 | |
| 457 | if(errno == EHOSTUNREACH) code=ICMP_UNREACH_HOST; |
| 458 | else if(errno == ENETUNREACH) code=ICMP_UNREACH_NET; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 459 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 460 | DEBUG_MISC((dfd," udp icmp rx errno = %d-%s\n", |
| 461 | errno,strerror(errno))); |
| 462 | icmp_error(so->so_m, ICMP_UNREACH,code, 0,strerror(errno)); |
| 463 | } else { |
| 464 | icmp_reflect(so->so_m); |
blueswir1 | 511d2b1 | 2009-03-07 15:32:56 +0000 | [diff] [blame] | 465 | so->so_m = NULL; /* Don't m_free() it again! */ |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 466 | } |
| 467 | /* No need for this socket anymore, udp_detach it */ |
| 468 | udp_detach(so); |
| 469 | } else { /* A "normal" UDP packet */ |
| 470 | struct mbuf *m; |
Blue Swirl | c5b76b3 | 2009-06-13 08:44:31 +0000 | [diff] [blame] | 471 | int len; |
| 472 | #ifdef _WIN32 |
| 473 | unsigned long n; |
| 474 | #else |
| 475 | int n; |
| 476 | #endif |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 477 | |
Jan Kiszka | 460fec6 | 2009-06-24 14:42:31 +0200 | [diff] [blame] | 478 | m = m_get(so->slirp); |
| 479 | if (!m) { |
| 480 | return; |
| 481 | } |
blueswir1 | 9634d90 | 2007-10-26 19:01:16 +0000 | [diff] [blame] | 482 | m->m_data += IF_MAXLINKHDR; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 483 | |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 484 | /* |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 485 | * XXX Shouldn't FIONREAD packets destined for port 53, |
| 486 | * but I don't know the max packet size for DNS lookups |
| 487 | */ |
| 488 | len = M_FREEROOM(m); |
| 489 | /* if (so->so_fport != htons(53)) { */ |
bellard | 379ff53 | 2004-07-12 22:33:07 +0000 | [diff] [blame] | 490 | ioctlsocket(so->s, FIONREAD, &n); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 491 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 492 | if (n > len) { |
| 493 | n = (m->m_data - m->m_dat) + m->m_len + n + 1; |
| 494 | m_inc(m, n); |
| 495 | len = M_FREEROOM(m); |
| 496 | } |
| 497 | /* } */ |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 498 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 499 | m->m_len = recvfrom(so->s, m->m_data, len, 0, |
| 500 | (struct sockaddr *)&addr, &addrlen); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 501 | DEBUG_MISC((dfd, " did recvfrom %d, errno = %d-%s\n", |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 502 | m->m_len, errno,strerror(errno))); |
| 503 | if(m->m_len<0) { |
| 504 | u_char code=ICMP_UNREACH_PORT; |
| 505 | |
| 506 | if(errno == EHOSTUNREACH) code=ICMP_UNREACH_HOST; |
| 507 | else if(errno == ENETUNREACH) code=ICMP_UNREACH_NET; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 508 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 509 | DEBUG_MISC((dfd," rx error, tx icmp ICMP_UNREACH:%i\n", code)); |
| 510 | icmp_error(so->so_m, ICMP_UNREACH,code, 0,strerror(errno)); |
| 511 | m_free(m); |
| 512 | } else { |
| 513 | /* |
| 514 | * Hack: domain name lookup will be used the most for UDP, |
| 515 | * and since they'll only be used once there's no need |
| 516 | * for the 4 minute (or whatever) timeout... So we time them |
| 517 | * out much quicker (10 seconds for now...) |
| 518 | */ |
| 519 | if (so->so_expire) { |
| 520 | if (so->so_fport == htons(53)) |
| 521 | so->so_expire = curtime + SO_EXPIREFAST; |
| 522 | else |
| 523 | so->so_expire = curtime + SO_EXPIRE; |
| 524 | } |
| 525 | |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 526 | /* |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 527 | * If this packet was destined for CTL_ADDR, |
| 528 | * make it look like that's where it came from, done by udp_output |
| 529 | */ |
| 530 | udp_output(so, m, &addr); |
| 531 | } /* rx error */ |
| 532 | } /* if ping packet */ |
| 533 | } |
| 534 | |
| 535 | /* |
| 536 | * sendto() a socket |
| 537 | */ |
| 538 | int |
blueswir1 | 511d2b1 | 2009-03-07 15:32:56 +0000 | [diff] [blame] | 539 | sosendto(struct socket *so, struct mbuf *m) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 540 | { |
Jan Kiszka | 460fec6 | 2009-06-24 14:42:31 +0200 | [diff] [blame] | 541 | Slirp *slirp = so->slirp; |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 542 | int ret; |
| 543 | struct sockaddr_in addr; |
| 544 | |
| 545 | DEBUG_CALL("sosendto"); |
| 546 | DEBUG_ARG("so = %lx", (long)so); |
| 547 | DEBUG_ARG("m = %lx", (long)m); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 548 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 549 | addr.sin_family = AF_INET; |
Jan Kiszka | 460fec6 | 2009-06-24 14:42:31 +0200 | [diff] [blame] | 550 | if ((so->so_faddr.s_addr & slirp->vnetwork_mask.s_addr) == |
| 551 | slirp->vnetwork_addr.s_addr) { |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 552 | /* It's an alias */ |
Jan Kiszka | 460fec6 | 2009-06-24 14:42:31 +0200 | [diff] [blame] | 553 | if (so->so_faddr.s_addr == slirp->vnameserver_addr.s_addr) { |
Ed Swierk | df7a86e | 2009-08-20 19:00:31 -0700 | [diff] [blame] | 554 | if (get_dns_addr(&addr.sin_addr) < 0) |
| 555 | addr.sin_addr = loopback_addr; |
Jan Kiszka | a13a412 | 2009-06-24 14:42:28 +0200 | [diff] [blame] | 556 | } else { |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 557 | addr.sin_addr = loopback_addr; |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 558 | } |
| 559 | } else |
| 560 | addr.sin_addr = so->so_faddr; |
| 561 | addr.sin_port = so->so_fport; |
| 562 | |
| 563 | DEBUG_MISC((dfd, " sendto()ing, addr.sin_port=%d, addr.sin_addr.s_addr=%.16s\n", ntohs(addr.sin_port), inet_ntoa(addr.sin_addr))); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 564 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 565 | /* Don't care what port we get */ |
| 566 | ret = sendto(so->s, m->m_data, m->m_len, 0, |
| 567 | (struct sockaddr *)&addr, sizeof (struct sockaddr)); |
| 568 | if (ret < 0) |
| 569 | return -1; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 570 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 571 | /* |
| 572 | * Kill the socket if there's no reply in 4 minutes, |
| 573 | * but only if it's an expirable socket |
| 574 | */ |
| 575 | if (so->so_expire) |
| 576 | so->so_expire = curtime + SO_EXPIRE; |
Jan Kiszka | f932b6c | 2009-06-24 14:42:29 +0200 | [diff] [blame] | 577 | so->so_state &= SS_PERSISTENT_MASK; |
| 578 | so->so_state |= SS_ISFCONNECTED; /* So that it gets select()ed */ |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 579 | return 0; |
| 580 | } |
| 581 | |
| 582 | /* |
Jan Kiszka | 3c6a058 | 2009-06-24 14:42:28 +0200 | [diff] [blame] | 583 | * Listen for incoming TCP connections |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 584 | */ |
| 585 | struct socket * |
Stefan Weil | b6dce92 | 2010-07-22 22:15:23 +0200 | [diff] [blame] | 586 | tcp_listen(Slirp *slirp, uint32_t haddr, u_int hport, uint32_t laddr, |
Jan Kiszka | 460fec6 | 2009-06-24 14:42:31 +0200 | [diff] [blame] | 587 | u_int lport, int flags) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 588 | { |
| 589 | struct sockaddr_in addr; |
| 590 | struct socket *so; |
balrog | 242acf3 | 2008-05-10 01:49:53 +0000 | [diff] [blame] | 591 | int s, opt = 1; |
| 592 | socklen_t addrlen = sizeof(addr); |
Juha Riihimäki | ab07b98 | 2010-04-13 09:16:55 +0300 | [diff] [blame] | 593 | memset(&addr, 0, addrlen); |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 594 | |
Jan Kiszka | 3c6a058 | 2009-06-24 14:42:28 +0200 | [diff] [blame] | 595 | DEBUG_CALL("tcp_listen"); |
Jan Kiszka | 9f34949 | 2009-06-24 14:42:29 +0200 | [diff] [blame] | 596 | DEBUG_ARG("haddr = %x", haddr); |
| 597 | DEBUG_ARG("hport = %d", hport); |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 598 | DEBUG_ARG("laddr = %x", laddr); |
| 599 | DEBUG_ARG("lport = %d", lport); |
| 600 | DEBUG_ARG("flags = %x", flags); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 601 | |
Jan Kiszka | 460fec6 | 2009-06-24 14:42:31 +0200 | [diff] [blame] | 602 | so = socreate(slirp); |
| 603 | if (!so) { |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 604 | return NULL; |
| 605 | } |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 606 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 607 | /* Don't tcp_attach... we don't need so_snd nor so_rcv */ |
| 608 | if ((so->so_tcpcb = tcp_newtcpcb(so)) == NULL) { |
| 609 | free(so); |
| 610 | return NULL; |
| 611 | } |
Jan Kiszka | 460fec6 | 2009-06-24 14:42:31 +0200 | [diff] [blame] | 612 | insque(so, &slirp->tcb); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 613 | |
| 614 | /* |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 615 | * SS_FACCEPTONCE sockets must time out. |
| 616 | */ |
| 617 | if (flags & SS_FACCEPTONCE) |
| 618 | so->so_tcpcb->t_timer[TCPT_KEEP] = TCPTV_KEEP_INIT*2; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 619 | |
Jan Kiszka | f932b6c | 2009-06-24 14:42:29 +0200 | [diff] [blame] | 620 | so->so_state &= SS_PERSISTENT_MASK; |
| 621 | so->so_state |= (SS_FACCEPTCONN | flags); |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 622 | so->so_lport = lport; /* Kept in network format */ |
| 623 | so->so_laddr.s_addr = laddr; /* Ditto */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 624 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 625 | addr.sin_family = AF_INET; |
Jan Kiszka | 3c6a058 | 2009-06-24 14:42:28 +0200 | [diff] [blame] | 626 | addr.sin_addr.s_addr = haddr; |
| 627 | addr.sin_port = hport; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 628 | |
Kevin Wolf | 40ff6d7 | 2009-12-02 12:24:42 +0100 | [diff] [blame] | 629 | if (((s = qemu_socket(AF_INET,SOCK_STREAM,0)) < 0) || |
Sebastian Ottlik | aad1239 | 2013-10-02 12:23:15 +0200 | [diff] [blame] | 630 | (socket_set_fast_reuse(s) < 0) || |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 631 | (bind(s,(struct sockaddr *)&addr, sizeof(addr)) < 0) || |
| 632 | (listen(s,1) < 0)) { |
| 633 | int tmperrno = errno; /* Don't clobber the real reason we failed */ |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 634 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 635 | close(s); |
| 636 | sofree(so); |
| 637 | /* Restore the real errno */ |
bellard | 02d2c54 | 2004-10-07 23:27:35 +0000 | [diff] [blame] | 638 | #ifdef _WIN32 |
| 639 | WSASetLastError(tmperrno); |
| 640 | #else |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 641 | errno = tmperrno; |
bellard | 02d2c54 | 2004-10-07 23:27:35 +0000 | [diff] [blame] | 642 | #endif |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 643 | return NULL; |
| 644 | } |
Stefan Weil | 9957fc7 | 2013-03-08 19:58:32 +0100 | [diff] [blame] | 645 | qemu_setsockopt(s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int)); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 646 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 647 | getsockname(s,(struct sockaddr *)&addr,&addrlen); |
| 648 | so->so_fport = addr.sin_port; |
| 649 | if (addr.sin_addr.s_addr == 0 || addr.sin_addr.s_addr == loopback_addr.s_addr) |
Jan Kiszka | 460fec6 | 2009-06-24 14:42:31 +0200 | [diff] [blame] | 650 | so->so_faddr = slirp->vhost_addr; |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 651 | else |
| 652 | so->so_faddr = addr.sin_addr; |
| 653 | |
| 654 | so->s = s; |
| 655 | return so; |
| 656 | } |
| 657 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 658 | /* |
| 659 | * Various session state calls |
| 660 | * XXX Should be #define's |
| 661 | * The socket state stuff needs work, these often get call 2 or 3 |
| 662 | * times each when only 1 was needed |
| 663 | */ |
| 664 | void |
blueswir1 | 511d2b1 | 2009-03-07 15:32:56 +0000 | [diff] [blame] | 665 | soisfconnecting(struct socket *so) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 666 | { |
| 667 | so->so_state &= ~(SS_NOFDREF|SS_ISFCONNECTED|SS_FCANTRCVMORE| |
| 668 | SS_FCANTSENDMORE|SS_FWDRAIN); |
| 669 | so->so_state |= SS_ISFCONNECTING; /* Clobber other states */ |
| 670 | } |
| 671 | |
| 672 | void |
blueswir1 | 511d2b1 | 2009-03-07 15:32:56 +0000 | [diff] [blame] | 673 | soisfconnected(struct socket *so) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 674 | { |
| 675 | so->so_state &= ~(SS_ISFCONNECTING|SS_FWDRAIN|SS_NOFDREF); |
| 676 | so->so_state |= SS_ISFCONNECTED; /* Clobber other states */ |
| 677 | } |
| 678 | |
blueswir1 | 9634d90 | 2007-10-26 19:01:16 +0000 | [diff] [blame] | 679 | static void |
| 680 | sofcantrcvmore(struct socket *so) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 681 | { |
| 682 | if ((so->so_state & SS_NOFDREF) == 0) { |
| 683 | shutdown(so->s,0); |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 684 | } |
| 685 | so->so_state &= ~(SS_ISFCONNECTING); |
Jan Kiszka | f932b6c | 2009-06-24 14:42:29 +0200 | [diff] [blame] | 686 | if (so->so_state & SS_FCANTSENDMORE) { |
| 687 | so->so_state &= SS_PERSISTENT_MASK; |
| 688 | so->so_state |= SS_NOFDREF; /* Don't select it */ |
| 689 | } else { |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 690 | so->so_state |= SS_FCANTRCVMORE; |
Jan Kiszka | f932b6c | 2009-06-24 14:42:29 +0200 | [diff] [blame] | 691 | } |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 692 | } |
| 693 | |
blueswir1 | 9634d90 | 2007-10-26 19:01:16 +0000 | [diff] [blame] | 694 | static void |
| 695 | sofcantsendmore(struct socket *so) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 696 | { |
| 697 | if ((so->so_state & SS_NOFDREF) == 0) { |
bellard | 02d2c54 | 2004-10-07 23:27:35 +0000 | [diff] [blame] | 698 | shutdown(so->s,1); /* send FIN to fhost */ |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 699 | } |
| 700 | so->so_state &= ~(SS_ISFCONNECTING); |
Jan Kiszka | f932b6c | 2009-06-24 14:42:29 +0200 | [diff] [blame] | 701 | if (so->so_state & SS_FCANTRCVMORE) { |
| 702 | so->so_state &= SS_PERSISTENT_MASK; |
| 703 | so->so_state |= SS_NOFDREF; /* as above */ |
| 704 | } else { |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 705 | so->so_state |= SS_FCANTSENDMORE; |
Jan Kiszka | f932b6c | 2009-06-24 14:42:29 +0200 | [diff] [blame] | 706 | } |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 707 | } |
| 708 | |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 709 | /* |
| 710 | * Set write drain mode |
| 711 | * Set CANTSENDMORE once all data has been write()n |
| 712 | */ |
| 713 | void |
blueswir1 | 511d2b1 | 2009-03-07 15:32:56 +0000 | [diff] [blame] | 714 | sofwdrain(struct socket *so) |
bellard | f0cbd3e | 2004-04-22 00:10:48 +0000 | [diff] [blame] | 715 | { |
| 716 | if (so->so_rcv.sb_cc) |
| 717 | so->so_state |= SS_FWDRAIN; |
| 718 | else |
| 719 | sofcantsendmore(so); |
| 720 | } |