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1 | f0cbd3ec | bellard | /*
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2 | f0cbd3ec | bellard | * Copyright (c) 1982, 1986, 1988, 1990, 1993
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3 | f0cbd3ec | bellard | * The Regents of the University of California. All rights reserved.
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4 | f0cbd3ec | bellard | *
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5 | f0cbd3ec | bellard | * Redistribution and use in source and binary forms, with or without
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6 | f0cbd3ec | bellard | * modification, are permitted provided that the following conditions
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7 | f0cbd3ec | bellard | * are met:
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8 | f0cbd3ec | bellard | * 1. Redistributions of source code must retain the above copyright
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9 | f0cbd3ec | bellard | * notice, this list of conditions and the following disclaimer.
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10 | f0cbd3ec | bellard | * 2. Redistributions in binary form must reproduce the above copyright
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11 | f0cbd3ec | bellard | * notice, this list of conditions and the following disclaimer in the
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12 | f0cbd3ec | bellard | * documentation and/or other materials provided with the distribution.
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13 | 2f5f8996 | aliguori | * 3. Neither the name of the University nor the names of its contributors
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14 | f0cbd3ec | bellard | * may be used to endorse or promote products derived from this software
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15 | f0cbd3ec | bellard | * without specific prior written permission.
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16 | f0cbd3ec | bellard | *
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17 | f0cbd3ec | bellard | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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18 | f0cbd3ec | bellard | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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19 | f0cbd3ec | bellard | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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20 | f0cbd3ec | bellard | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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21 | f0cbd3ec | bellard | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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22 | f0cbd3ec | bellard | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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23 | f0cbd3ec | bellard | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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24 | f0cbd3ec | bellard | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | f0cbd3ec | bellard | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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26 | f0cbd3ec | bellard | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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27 | f0cbd3ec | bellard | * SUCH DAMAGE.
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28 | f0cbd3ec | bellard | *
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29 | f0cbd3ec | bellard | * @(#)udp_usrreq.c 8.4 (Berkeley) 1/21/94
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30 | f0cbd3ec | bellard | * udp_usrreq.c,v 1.4 1994/10/02 17:48:45 phk Exp
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31 | f0cbd3ec | bellard | */
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32 | f0cbd3ec | bellard | |
33 | f0cbd3ec | bellard | /*
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34 | f0cbd3ec | bellard | * Changes and additions relating to SLiRP
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35 | f0cbd3ec | bellard | * Copyright (c) 1995 Danny Gasparovski.
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36 | 5fafdf24 | ths | *
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37 | 5fafdf24 | ths | * Please read the file COPYRIGHT for the
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38 | f0cbd3ec | bellard | * terms and conditions of the copyright.
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39 | f0cbd3ec | bellard | */
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40 | f0cbd3ec | bellard | |
41 | f0cbd3ec | bellard | #include <slirp.h> |
42 | f0cbd3ec | bellard | #include "ip_icmp.h" |
43 | f0cbd3ec | bellard | |
44 | 9634d903 | blueswir1 | static u_int8_t udp_tos(struct socket *so); |
45 | 9634d903 | blueswir1 | |
46 | f0cbd3ec | bellard | void
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47 | 460fec67 | Jan Kiszka | udp_init(Slirp *slirp) |
48 | f0cbd3ec | bellard | { |
49 | 460fec67 | Jan Kiszka | slirp->udb.so_next = slirp->udb.so_prev = &slirp->udb; |
50 | 460fec67 | Jan Kiszka | slirp->udp_last_so = &slirp->udb; |
51 | f0cbd3ec | bellard | } |
52 | 5fafdf24 | ths | /* m->m_data points at ip packet header
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53 | 5fafdf24 | ths | * m->m_len length ip packet
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54 | f0cbd3ec | bellard | * ip->ip_len length data (IPDU)
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55 | f0cbd3ec | bellard | */
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56 | f0cbd3ec | bellard | void
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57 | aeed97c4 | blueswir1 | udp_input(register struct mbuf *m, int iphlen) |
58 | f0cbd3ec | bellard | { |
59 | 460fec67 | Jan Kiszka | Slirp *slirp = m->slirp; |
60 | f0cbd3ec | bellard | register struct ip *ip; |
61 | f0cbd3ec | bellard | register struct udphdr *uh; |
62 | f0cbd3ec | bellard | int len;
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63 | 5fafdf24 | ths | struct ip save_ip;
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64 | f0cbd3ec | bellard | struct socket *so;
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65 | 5fafdf24 | ths | |
66 | f0cbd3ec | bellard | DEBUG_CALL("udp_input");
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67 | f0cbd3ec | bellard | DEBUG_ARG("m = %lx", (long)m); |
68 | f0cbd3ec | bellard | DEBUG_ARG("iphlen = %d", iphlen);
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69 | 5fafdf24 | ths | |
70 | f0cbd3ec | bellard | /*
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71 | f0cbd3ec | bellard | * Strip IP options, if any; should skip this,
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72 | f0cbd3ec | bellard | * make available to user, and use on returned packets,
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73 | f0cbd3ec | bellard | * but we don't yet have a way to check the checksum
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74 | f0cbd3ec | bellard | * with options still present.
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75 | f0cbd3ec | bellard | */
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76 | f0cbd3ec | bellard | if(iphlen > sizeof(struct ip)) { |
77 | f0cbd3ec | bellard | ip_stripoptions(m, (struct mbuf *)0); |
78 | f0cbd3ec | bellard | iphlen = sizeof(struct ip); |
79 | f0cbd3ec | bellard | } |
80 | f0cbd3ec | bellard | |
81 | f0cbd3ec | bellard | /*
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82 | f0cbd3ec | bellard | * Get IP and UDP header together in first mbuf.
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83 | f0cbd3ec | bellard | */
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84 | f0cbd3ec | bellard | ip = mtod(m, struct ip *);
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85 | f0cbd3ec | bellard | uh = (struct udphdr *)((caddr_t)ip + iphlen);
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86 | f0cbd3ec | bellard | |
87 | f0cbd3ec | bellard | /*
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88 | f0cbd3ec | bellard | * Make mbuf data length reflect UDP length.
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89 | f0cbd3ec | bellard | * If not enough data to reflect UDP length, drop.
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90 | f0cbd3ec | bellard | */
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91 | f0cbd3ec | bellard | len = ntohs((u_int16_t)uh->uh_ulen); |
92 | f0cbd3ec | bellard | |
93 | f0cbd3ec | bellard | if (ip->ip_len != len) {
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94 | f0cbd3ec | bellard | if (len > ip->ip_len) {
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95 | f0cbd3ec | bellard | goto bad;
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96 | f0cbd3ec | bellard | } |
97 | f0cbd3ec | bellard | m_adj(m, len - ip->ip_len); |
98 | f0cbd3ec | bellard | ip->ip_len = len; |
99 | f0cbd3ec | bellard | } |
100 | 5fafdf24 | ths | |
101 | f0cbd3ec | bellard | /*
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102 | f0cbd3ec | bellard | * Save a copy of the IP header in case we want restore it
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103 | f0cbd3ec | bellard | * for sending an ICMP error message in response.
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104 | f0cbd3ec | bellard | */
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105 | 5fafdf24 | ths | save_ip = *ip; |
106 | f0cbd3ec | bellard | save_ip.ip_len+= iphlen; /* tcp_input subtracts this */
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107 | f0cbd3ec | bellard | |
108 | f0cbd3ec | bellard | /*
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109 | f0cbd3ec | bellard | * Checksum extended UDP header and data.
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110 | f0cbd3ec | bellard | */
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111 | 0d62c4cf | Jan Kiszka | if (uh->uh_sum) {
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112 | 429d0a3d | blueswir1 | memset(&((struct ipovly *)ip)->ih_mbuf, 0, sizeof(struct mbuf_ptr)); |
113 | f0cbd3ec | bellard | ((struct ipovly *)ip)->ih_x1 = 0; |
114 | f0cbd3ec | bellard | ((struct ipovly *)ip)->ih_len = uh->uh_ulen;
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115 | f0cbd3ec | bellard | if(cksum(m, len + sizeof(struct ip))) { |
116 | f0cbd3ec | bellard | goto bad;
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117 | f0cbd3ec | bellard | } |
118 | f0cbd3ec | bellard | } |
119 | f0cbd3ec | bellard | |
120 | f0cbd3ec | bellard | /*
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121 | f0cbd3ec | bellard | * handle DHCP/BOOTP
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122 | f0cbd3ec | bellard | */
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123 | f0cbd3ec | bellard | if (ntohs(uh->uh_dport) == BOOTP_SERVER) {
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124 | f0cbd3ec | bellard | bootp_input(m); |
125 | f0cbd3ec | bellard | goto bad;
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126 | f0cbd3ec | bellard | } |
127 | f0cbd3ec | bellard | |
128 | 460fec67 | Jan Kiszka | if (slirp->restricted) {
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129 | a9ba3a85 | aliguori | goto bad;
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130 | 460fec67 | Jan Kiszka | } |
131 | a9ba3a85 | aliguori | |
132 | c7f74643 | bellard | /*
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133 | c7f74643 | bellard | * handle TFTP
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134 | c7f74643 | bellard | */
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135 | c7f74643 | bellard | if (ntohs(uh->uh_dport) == TFTP_SERVER) {
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136 | c7f74643 | bellard | tftp_input(m); |
137 | c7f74643 | bellard | goto bad;
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138 | c7f74643 | bellard | } |
139 | c7f74643 | bellard | |
140 | f0cbd3ec | bellard | /*
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141 | f0cbd3ec | bellard | * Locate pcb for datagram.
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142 | f0cbd3ec | bellard | */
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143 | 460fec67 | Jan Kiszka | so = slirp->udp_last_so; |
144 | f0cbd3ec | bellard | if (so->so_lport != uh->uh_sport ||
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145 | f0cbd3ec | bellard | so->so_laddr.s_addr != ip->ip_src.s_addr) { |
146 | f0cbd3ec | bellard | struct socket *tmp;
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147 | 3b46e624 | ths | |
148 | 460fec67 | Jan Kiszka | for (tmp = slirp->udb.so_next; tmp != &slirp->udb;
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149 | 460fec67 | Jan Kiszka | tmp = tmp->so_next) { |
150 | f0cbd3ec | bellard | if (tmp->so_lport == uh->uh_sport &&
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151 | f0cbd3ec | bellard | tmp->so_laddr.s_addr == ip->ip_src.s_addr) { |
152 | f0cbd3ec | bellard | so = tmp; |
153 | f0cbd3ec | bellard | break;
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154 | f0cbd3ec | bellard | } |
155 | f0cbd3ec | bellard | } |
156 | 460fec67 | Jan Kiszka | if (tmp == &slirp->udb) {
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157 | f0cbd3ec | bellard | so = NULL;
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158 | f0cbd3ec | bellard | } else {
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159 | 460fec67 | Jan Kiszka | slirp->udp_last_so = so; |
160 | f0cbd3ec | bellard | } |
161 | f0cbd3ec | bellard | } |
162 | 5fafdf24 | ths | |
163 | f0cbd3ec | bellard | if (so == NULL) { |
164 | f0cbd3ec | bellard | /*
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165 | f0cbd3ec | bellard | * If there's no socket for this packet,
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166 | f0cbd3ec | bellard | * create one
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167 | f0cbd3ec | bellard | */
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168 | 460fec67 | Jan Kiszka | so = socreate(slirp); |
169 | 460fec67 | Jan Kiszka | if (!so) {
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170 | 460fec67 | Jan Kiszka | goto bad;
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171 | 460fec67 | Jan Kiszka | } |
172 | f0cbd3ec | bellard | if(udp_attach(so) == -1) { |
173 | 5fafdf24 | ths | DEBUG_MISC((dfd," udp_attach errno = %d-%s\n",
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174 | f0cbd3ec | bellard | errno,strerror(errno))); |
175 | f0cbd3ec | bellard | sofree(so); |
176 | f0cbd3ec | bellard | goto bad;
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177 | f0cbd3ec | bellard | } |
178 | 3b46e624 | ths | |
179 | f0cbd3ec | bellard | /*
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180 | f0cbd3ec | bellard | * Setup fields
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181 | f0cbd3ec | bellard | */
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182 | f0cbd3ec | bellard | so->so_laddr = ip->ip_src; |
183 | f0cbd3ec | bellard | so->so_lport = uh->uh_sport; |
184 | 3b46e624 | ths | |
185 | f0cbd3ec | bellard | if ((so->so_iptos = udp_tos(so)) == 0) |
186 | f0cbd3ec | bellard | so->so_iptos = ip->ip_tos; |
187 | 3b46e624 | ths | |
188 | f0cbd3ec | bellard | /*
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189 | f0cbd3ec | bellard | * XXXXX Here, check if it's in udpexec_list,
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190 | f0cbd3ec | bellard | * and if it is, do the fork_exec() etc.
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191 | f0cbd3ec | bellard | */
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192 | f0cbd3ec | bellard | } |
193 | f0cbd3ec | bellard | |
194 | 54fd9cdf | ths | so->so_faddr = ip->ip_dst; /* XXX */
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195 | 54fd9cdf | ths | so->so_fport = uh->uh_dport; /* XXX */
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196 | 54fd9cdf | ths | |
197 | f0cbd3ec | bellard | iphlen += sizeof(struct udphdr); |
198 | f0cbd3ec | bellard | m->m_len -= iphlen; |
199 | f0cbd3ec | bellard | m->m_data += iphlen; |
200 | f0cbd3ec | bellard | |
201 | f0cbd3ec | bellard | /*
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202 | f0cbd3ec | bellard | * Now we sendto() the packet.
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203 | f0cbd3ec | bellard | */
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204 | f0cbd3ec | bellard | if(sosendto(so,m) == -1) { |
205 | f0cbd3ec | bellard | m->m_len += iphlen; |
206 | f0cbd3ec | bellard | m->m_data -= iphlen; |
207 | f0cbd3ec | bellard | *ip=save_ip; |
208 | f0cbd3ec | bellard | DEBUG_MISC((dfd,"udp tx errno = %d-%s\n",errno,strerror(errno)));
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209 | 3b46e624 | ths | icmp_error(m, ICMP_UNREACH,ICMP_UNREACH_NET, 0,strerror(errno));
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210 | f0cbd3ec | bellard | } |
211 | f0cbd3ec | bellard | |
212 | f0cbd3ec | bellard | m_free(so->so_m); /* used for ICMP if error on sorecvfrom */
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213 | f0cbd3ec | bellard | |
214 | f0cbd3ec | bellard | /* restore the orig mbuf packet */
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215 | f0cbd3ec | bellard | m->m_len += iphlen; |
216 | f0cbd3ec | bellard | m->m_data -= iphlen; |
217 | f0cbd3ec | bellard | *ip=save_ip; |
218 | f0cbd3ec | bellard | so->so_m=m; /* ICMP backup */
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219 | f0cbd3ec | bellard | |
220 | f0cbd3ec | bellard | return;
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221 | f0cbd3ec | bellard | bad:
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222 | f0cbd3ec | bellard | m_freem(m); |
223 | f0cbd3ec | bellard | return;
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224 | f0cbd3ec | bellard | } |
225 | f0cbd3ec | bellard | |
226 | 5fafdf24 | ths | int udp_output2(struct socket *so, struct mbuf *m, |
227 | f0cbd3ec | bellard | struct sockaddr_in *saddr, struct sockaddr_in *daddr, |
228 | f0cbd3ec | bellard | int iptos)
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229 | f0cbd3ec | bellard | { |
230 | f0cbd3ec | bellard | register struct udpiphdr *ui; |
231 | f0cbd3ec | bellard | int error = 0; |
232 | f0cbd3ec | bellard | |
233 | f0cbd3ec | bellard | DEBUG_CALL("udp_output");
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234 | f0cbd3ec | bellard | DEBUG_ARG("so = %lx", (long)so); |
235 | f0cbd3ec | bellard | DEBUG_ARG("m = %lx", (long)m); |
236 | f0cbd3ec | bellard | DEBUG_ARG("saddr = %lx", (long)saddr->sin_addr.s_addr); |
237 | f0cbd3ec | bellard | DEBUG_ARG("daddr = %lx", (long)daddr->sin_addr.s_addr); |
238 | f0cbd3ec | bellard | |
239 | f0cbd3ec | bellard | /*
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240 | f0cbd3ec | bellard | * Adjust for header
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241 | f0cbd3ec | bellard | */
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242 | f0cbd3ec | bellard | m->m_data -= sizeof(struct udpiphdr); |
243 | f0cbd3ec | bellard | m->m_len += sizeof(struct udpiphdr); |
244 | 5fafdf24 | ths | |
245 | f0cbd3ec | bellard | /*
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246 | f0cbd3ec | bellard | * Fill in mbuf with extended UDP header
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247 | f0cbd3ec | bellard | * and addresses and length put into network format.
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248 | f0cbd3ec | bellard | */
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249 | f0cbd3ec | bellard | ui = mtod(m, struct udpiphdr *);
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250 | 429d0a3d | blueswir1 | memset(&ui->ui_i.ih_mbuf, 0 , sizeof(struct mbuf_ptr)); |
251 | f0cbd3ec | bellard | ui->ui_x1 = 0;
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252 | f0cbd3ec | bellard | ui->ui_pr = IPPROTO_UDP; |
253 | 0d62c4cf | Jan Kiszka | ui->ui_len = htons(m->m_len - sizeof(struct ip)); |
254 | f0cbd3ec | bellard | /* XXXXX Check for from-one-location sockets, or from-any-location sockets */
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255 | f0cbd3ec | bellard | ui->ui_src = saddr->sin_addr; |
256 | f0cbd3ec | bellard | ui->ui_dst = daddr->sin_addr; |
257 | f0cbd3ec | bellard | ui->ui_sport = saddr->sin_port; |
258 | f0cbd3ec | bellard | ui->ui_dport = daddr->sin_port; |
259 | f0cbd3ec | bellard | ui->ui_ulen = ui->ui_len; |
260 | f0cbd3ec | bellard | |
261 | f0cbd3ec | bellard | /*
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262 | f0cbd3ec | bellard | * Stuff checksum and output datagram.
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263 | f0cbd3ec | bellard | */
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264 | f0cbd3ec | bellard | ui->ui_sum = 0;
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265 | 0d62c4cf | Jan Kiszka | if ((ui->ui_sum = cksum(m, m->m_len)) == 0) |
266 | f0cbd3ec | bellard | ui->ui_sum = 0xffff;
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267 | f0cbd3ec | bellard | ((struct ip *)ui)->ip_len = m->m_len;
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268 | f0cbd3ec | bellard | |
269 | 9634d903 | blueswir1 | ((struct ip *)ui)->ip_ttl = IPDEFTTL;
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270 | f0cbd3ec | bellard | ((struct ip *)ui)->ip_tos = iptos;
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271 | 5fafdf24 | ths | |
272 | f0cbd3ec | bellard | error = ip_output(so, m); |
273 | 5fafdf24 | ths | |
274 | f0cbd3ec | bellard | return (error);
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275 | f0cbd3ec | bellard | } |
276 | f0cbd3ec | bellard | |
277 | 5fafdf24 | ths | int udp_output(struct socket *so, struct mbuf *m, |
278 | f0cbd3ec | bellard | struct sockaddr_in *addr)
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279 | f0cbd3ec | bellard | |
280 | f0cbd3ec | bellard | { |
281 | 460fec67 | Jan Kiszka | Slirp *slirp = so->slirp; |
282 | f0cbd3ec | bellard | struct sockaddr_in saddr, daddr;
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283 | f0cbd3ec | bellard | |
284 | f0cbd3ec | bellard | saddr = *addr; |
285 | 460fec67 | Jan Kiszka | if ((so->so_faddr.s_addr & slirp->vnetwork_mask.s_addr) ==
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286 | 460fec67 | Jan Kiszka | slirp->vnetwork_addr.s_addr) { |
287 | 460fec67 | Jan Kiszka | uint32_t inv_mask = ~slirp->vnetwork_mask.s_addr; |
288 | 460fec67 | Jan Kiszka | |
289 | 460fec67 | Jan Kiszka | if ((so->so_faddr.s_addr & inv_mask) == inv_mask) {
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290 | 460fec67 | Jan Kiszka | saddr.sin_addr = slirp->vhost_addr; |
291 | a13a4126 | Jan Kiszka | } else if (addr->sin_addr.s_addr == loopback_addr.s_addr || |
292 | 460fec67 | Jan Kiszka | so->so_faddr.s_addr != slirp->vhost_addr.s_addr) { |
293 | a13a4126 | Jan Kiszka | saddr.sin_addr = so->so_faddr; |
294 | a13a4126 | Jan Kiszka | } |
295 | c904d61f | bellard | } |
296 | f0cbd3ec | bellard | daddr.sin_addr = so->so_laddr; |
297 | f0cbd3ec | bellard | daddr.sin_port = so->so_lport; |
298 | 3b46e624 | ths | |
299 | f0cbd3ec | bellard | return udp_output2(so, m, &saddr, &daddr, so->so_iptos);
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300 | f0cbd3ec | bellard | } |
301 | f0cbd3ec | bellard | |
302 | f0cbd3ec | bellard | int
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303 | aeed97c4 | blueswir1 | udp_attach(struct socket *so)
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304 | f0cbd3ec | bellard | { |
305 | 40ff6d7e | Kevin Wolf | if((so->s = qemu_socket(AF_INET,SOCK_DGRAM,0)) != -1) { |
306 | 97df1ee5 | Ed Swierk | so->so_expire = curtime + SO_EXPIRE; |
307 | 97df1ee5 | Ed Swierk | insque(so, &so->slirp->udb); |
308 | f0cbd3ec | bellard | } |
309 | f0cbd3ec | bellard | return(so->s);
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310 | f0cbd3ec | bellard | } |
311 | f0cbd3ec | bellard | |
312 | f0cbd3ec | bellard | void
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313 | aeed97c4 | blueswir1 | udp_detach(struct socket *so)
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314 | f0cbd3ec | bellard | { |
315 | 379ff53d | bellard | closesocket(so->s); |
316 | f0cbd3ec | bellard | sofree(so); |
317 | f0cbd3ec | bellard | } |
318 | f0cbd3ec | bellard | |
319 | 9634d903 | blueswir1 | static const struct tos_t udptos[] = { |
320 | f0cbd3ec | bellard | {0, 53, IPTOS_LOWDELAY, 0}, /* DNS */ |
321 | f0cbd3ec | bellard | {0, 0, 0, 0} |
322 | f0cbd3ec | bellard | }; |
323 | f0cbd3ec | bellard | |
324 | 9634d903 | blueswir1 | static u_int8_t
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325 | 9634d903 | blueswir1 | udp_tos(struct socket *so)
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326 | f0cbd3ec | bellard | { |
327 | f0cbd3ec | bellard | int i = 0; |
328 | 5fafdf24 | ths | |
329 | f0cbd3ec | bellard | while(udptos[i].tos) {
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330 | f0cbd3ec | bellard | if ((udptos[i].fport && ntohs(so->so_fport) == udptos[i].fport) ||
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331 | f0cbd3ec | bellard | (udptos[i].lport && ntohs(so->so_lport) == udptos[i].lport)) { |
332 | f0cbd3ec | bellard | so->so_emu = udptos[i].emu; |
333 | f0cbd3ec | bellard | return udptos[i].tos;
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334 | f0cbd3ec | bellard | } |
335 | f0cbd3ec | bellard | i++; |
336 | f0cbd3ec | bellard | } |
337 | 5fafdf24 | ths | |
338 | f0cbd3ec | bellard | return 0; |
339 | f0cbd3ec | bellard | } |
340 | f0cbd3ec | bellard | |
341 | f0cbd3ec | bellard | struct socket *
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342 | 460fec67 | Jan Kiszka | udp_listen(Slirp *slirp, u_int32_t haddr, u_int hport, u_int32_t laddr, |
343 | 460fec67 | Jan Kiszka | u_int lport, int flags)
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344 | f0cbd3ec | bellard | { |
345 | f0cbd3ec | bellard | struct sockaddr_in addr;
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346 | f0cbd3ec | bellard | struct socket *so;
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347 | 242acf3a | balrog | socklen_t addrlen = sizeof(struct sockaddr_in), opt = 1; |
348 | 5fafdf24 | ths | |
349 | 460fec67 | Jan Kiszka | so = socreate(slirp); |
350 | 460fec67 | Jan Kiszka | if (!so) {
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351 | 460fec67 | Jan Kiszka | return NULL; |
352 | f0cbd3ec | bellard | } |
353 | 40ff6d7e | Kevin Wolf | so->s = qemu_socket(AF_INET,SOCK_DGRAM,0);
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354 | f0cbd3ec | bellard | so->so_expire = curtime + SO_EXPIRE; |
355 | 460fec67 | Jan Kiszka | insque(so, &slirp->udb); |
356 | f0cbd3ec | bellard | |
357 | f0cbd3ec | bellard | addr.sin_family = AF_INET; |
358 | 3c6a0580 | Jan Kiszka | addr.sin_addr.s_addr = haddr; |
359 | 3c6a0580 | Jan Kiszka | addr.sin_port = hport; |
360 | f0cbd3ec | bellard | |
361 | f0cbd3ec | bellard | if (bind(so->s,(struct sockaddr *)&addr, addrlen) < 0) { |
362 | f0cbd3ec | bellard | udp_detach(so); |
363 | f0cbd3ec | bellard | return NULL; |
364 | f0cbd3ec | bellard | } |
365 | f0cbd3ec | bellard | setsockopt(so->s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(int)); |
366 | 5fafdf24 | ths | |
367 | f0cbd3ec | bellard | getsockname(so->s,(struct sockaddr *)&addr,&addrlen);
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368 | f0cbd3ec | bellard | so->so_fport = addr.sin_port; |
369 | a13a4126 | Jan Kiszka | if (addr.sin_addr.s_addr == 0 || |
370 | a13a4126 | Jan Kiszka | addr.sin_addr.s_addr == loopback_addr.s_addr) { |
371 | 460fec67 | Jan Kiszka | so->so_faddr = slirp->vhost_addr; |
372 | a13a4126 | Jan Kiszka | } else {
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373 | f0cbd3ec | bellard | so->so_faddr = addr.sin_addr; |
374 | a13a4126 | Jan Kiszka | } |
375 | f0cbd3ec | bellard | so->so_lport = lport; |
376 | f0cbd3ec | bellard | so->so_laddr.s_addr = laddr; |
377 | f0cbd3ec | bellard | if (flags != SS_FACCEPTONCE)
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378 | f0cbd3ec | bellard | so->so_expire = 0;
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379 | 5fafdf24 | ths | |
380 | f932b6ce | Jan Kiszka | so->so_state &= SS_PERSISTENT_MASK; |
381 | 6dd5ffb6 | Jan Kiszka | so->so_state |= SS_ISFCONNECTED | flags; |
382 | 5fafdf24 | ths | |
383 | f0cbd3ec | bellard | return so;
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384 | f0cbd3ec | bellard | } |