version 1.93.4.2, 2004/03/31 20:10:29 |
version 1.96, 2002/08/14 00:23:36 |
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/* |
/* |
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
* All rights reserved. |
* All rights reserved. |
* |
* |
* Redistribution and use in source and binary forms, with or without |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* modification, are permitted provided that the following conditions |
* are met: |
* are met: |
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* 3. Neither the name of the project nor the names of its contributors |
* 3. Neither the name of the project nor the names of its contributors |
* may be used to endorse or promote products derived from this software |
* may be used to endorse or promote products derived from this software |
* without specific prior written permission. |
* without specific prior written permission. |
* |
* |
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
Line 216 udp_input(m, va_alist) |
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Line 216 udp_input(m, va_alist) |
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int iphlen, proto; |
int iphlen, proto; |
int len; |
int len; |
int n; |
int n; |
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u_int16_t ip_len; |
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va_start(ap, m); |
va_start(ap, m); |
iphlen = va_arg(ap, int); |
iphlen = va_arg(ap, int); |
Line 262 udp_input(m, va_alist) |
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Line 263 udp_input(m, va_alist) |
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return; |
return; |
} |
} |
#endif |
#endif |
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KASSERT(UDP_HDR_ALIGNED_P(uh)); |
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/* destination port of 0 is illegal, based on RFC768. */ |
/* destination port of 0 is illegal, based on RFC768. */ |
if (uh->uh_dport == 0) |
if (uh->uh_dport == 0) |
Line 271 udp_input(m, va_alist) |
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Line 273 udp_input(m, va_alist) |
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* Make mbuf data length reflect UDP length. |
* Make mbuf data length reflect UDP length. |
* If not enough data to reflect UDP length, drop. |
* If not enough data to reflect UDP length, drop. |
*/ |
*/ |
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ip_len = ntohs(ip->ip_len); |
len = ntohs((u_int16_t)uh->uh_ulen); |
len = ntohs((u_int16_t)uh->uh_ulen); |
if (ip->ip_len != iphlen + len) { |
if (ip_len != iphlen + len) { |
if (ip->ip_len < iphlen + len || len < sizeof(struct udphdr)) { |
if (ip_len < iphlen + len || len < sizeof(struct udphdr)) { |
udpstat.udps_badlen++; |
udpstat.udps_badlen++; |
goto bad; |
goto bad; |
} |
} |
m_adj(m, iphlen + len - ip->ip_len); |
m_adj(m, iphlen + len - ip_len); |
} |
} |
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/* |
/* |
Line 418 udp6_input(mp, offp, proto) |
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Line 421 udp6_input(mp, offp, proto) |
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return IPPROTO_DONE; |
return IPPROTO_DONE; |
} |
} |
#endif |
#endif |
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KASSERT(UDP_HDR_ALIGNED_P(uh)); |
ulen = ntohs((u_short)uh->uh_ulen); |
ulen = ntohs((u_short)uh->uh_ulen); |
/* |
/* |
* RFC2675 section 4: jumbograms will have 0 in the UDP header field, |
* RFC2675 section 4: jumbograms will have 0 in the UDP header field, |
Line 445 udp6_input(mp, offp, proto) |
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Line 449 udp6_input(mp, offp, proto) |
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/* |
/* |
* Checksum extended UDP header and data. |
* Checksum extended UDP header and data. |
*/ |
*/ |
if (uh->uh_sum == 0) { |
if (uh->uh_sum == 0) |
udp6stat.udp6s_nosum++; |
udp6stat.udp6s_nosum++; |
goto bad; |
else if (in6_cksum(m, IPPROTO_UDP, off, ulen) != 0) { |
} |
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if (in6_cksum(m, IPPROTO_UDP, off, ulen) != 0) { |
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udp6stat.udp6s_badsum++; |
udp6stat.udp6s_badsum++; |
goto bad; |
goto bad; |
} |
} |
Line 892 udp_output(m, va_alist) |
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Line 894 udp_output(m, va_alist) |
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* Compute the packet length of the IP header, and |
* Compute the packet length of the IP header, and |
* punt if the length looks bogus. |
* punt if the length looks bogus. |
*/ |
*/ |
if ((len + sizeof(struct udpiphdr)) > IP_MAXPACKET) { |
if (len + sizeof(struct udpiphdr) > IP_MAXPACKET) { |
error = EMSGSIZE; |
error = EMSGSIZE; |
goto release; |
goto release; |
} |
} |
Line 924 udp_output(m, va_alist) |
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Line 926 udp_output(m, va_alist) |
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m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum); |
m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum); |
} else |
} else |
ui->ui_sum = 0; |
ui->ui_sum = 0; |
((struct ip *)ui)->ip_len = sizeof (struct udpiphdr) + len; |
((struct ip *)ui)->ip_len = htons(sizeof (struct udpiphdr) + len); |
((struct ip *)ui)->ip_ttl = inp->inp_ip.ip_ttl; /* XXX */ |
((struct ip *)ui)->ip_ttl = inp->inp_ip.ip_ttl; /* XXX */ |
((struct ip *)ui)->ip_tos = inp->inp_ip.ip_tos; /* XXX */ |
((struct ip *)ui)->ip_tos = inp->inp_ip.ip_tos; /* XXX */ |
udpstat.udps_opackets++; |
udpstat.udps_opackets++; |
Line 1139 udp_sysctl(name, namelen, oldp, oldlenp, |
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Line 1141 udp_sysctl(name, namelen, oldp, oldlenp, |
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return (sysctl_int(oldp, oldlenp, newp, newlen, |
return (sysctl_int(oldp, oldlenp, newp, newlen, |
&udp_sendspace)); |
&udp_sendspace)); |
case UDPCTL_RECVSPACE: |
case UDPCTL_RECVSPACE: |
return (sysctl_int(oldp, oldlenp, newp, newlen, |
return (sysctl_int(oldp, oldlenp, newp, newlen, |
&udp_recvspace)); |
&udp_recvspace)); |
default: |
default: |
return (ENOPROTOOPT); |
return (ENOPROTOOPT); |