version 1.17, 1995/06/04 05:07:20 |
version 1.23, 1995/06/26 08:46:16 |
Line 68 int udpcksum = 0; /* XXX */ |
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Line 68 int udpcksum = 0; /* XXX */ |
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#endif |
#endif |
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struct sockaddr_in udp_in = { sizeof(udp_in), AF_INET }; |
struct sockaddr_in udp_in = { sizeof(udp_in), AF_INET }; |
struct inpcb *udp_last_inpcb = &udb; |
struct inpcb *udp_last_inpcb = 0; |
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static void udp_detach __P((struct inpcb *)); |
static void udp_detach __P((struct inpcb *)); |
static void udp_notify __P((struct inpcb *, int)); |
static void udp_notify __P((struct inpcb *, int)); |
Line 77 static struct mbuf *udp_saveopt __P((cad |
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Line 77 static struct mbuf *udp_saveopt __P((cad |
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void |
void |
udp_init() |
udp_init() |
{ |
{ |
udb.inp_next = udb.inp_prev = &udb; |
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in_pcbinit(&udbtable); |
} |
} |
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void |
void |
Line 183 udp_input(m, iphlen) |
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Line 184 udp_input(m, iphlen) |
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* (Algorithm copied from raw_intr().) |
* (Algorithm copied from raw_intr().) |
*/ |
*/ |
last = NULL; |
last = NULL; |
for (inp = udb.inp_next; inp != &udb; inp = inp->inp_next) { |
for (inp = udbtable.inpt_queue.cqh_first; |
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inp != (struct inpcb *)&udbtable.inpt_queue; |
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inp = inp->inp_queue.cqe_next) { |
if (inp->inp_lport != uh->uh_dport) |
if (inp->inp_lport != uh->uh_dport) |
continue; |
continue; |
if (inp->inp_laddr.s_addr != INADDR_ANY) { |
if (inp->inp_laddr.s_addr != INADDR_ANY) { |
Line 245 udp_input(m, iphlen) |
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Line 248 udp_input(m, iphlen) |
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* Locate pcb for datagram. |
* Locate pcb for datagram. |
*/ |
*/ |
inp = udp_last_inpcb; |
inp = udp_last_inpcb; |
if (inp->inp_lport != uh->uh_dport || |
if (inp == 0 || |
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inp->inp_lport != uh->uh_dport || |
inp->inp_fport != uh->uh_sport || |
inp->inp_fport != uh->uh_sport || |
inp->inp_faddr.s_addr != ip->ip_src.s_addr || |
inp->inp_faddr.s_addr != ip->ip_src.s_addr || |
inp->inp_laddr.s_addr != ip->ip_dst.s_addr) { |
inp->inp_laddr.s_addr != ip->ip_dst.s_addr) { |
inp = in_pcblookup(&udb, ip->ip_src, uh->uh_sport, |
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ip->ip_dst, uh->uh_dport, INPLOOKUP_WILDCARD); |
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if (inp) |
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udp_last_inpcb = inp; |
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udpstat.udpps_pcbcachemiss++; |
udpstat.udpps_pcbcachemiss++; |
} |
inp = in_pcblookup(&udbtable, ip->ip_src, uh->uh_sport, |
if (inp == 0) { |
ip->ip_dst, uh->uh_dport, INPLOOKUP_WILDCARD); |
udpstat.udps_noport++; |
if (inp == 0) { |
if (m->m_flags & (M_BCAST | M_MCAST)) { |
udpstat.udps_noport++; |
udpstat.udps_noportbcast++; |
if (m->m_flags & (M_BCAST | M_MCAST)) { |
goto bad; |
udpstat.udps_noportbcast++; |
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goto bad; |
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} |
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*ip = save_ip; |
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ip->ip_len += iphlen; |
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icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PORT, 0, 0); |
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return; |
} |
} |
*ip = save_ip; |
udp_last_inpcb = inp; |
ip->ip_len += iphlen; |
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icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PORT, 0, 0); |
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return; |
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} |
} |
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/* |
/* |
Line 363 udp_ctlinput(cmd, sa, ip) |
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Line 366 udp_ctlinput(cmd, sa, ip) |
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{ |
{ |
register struct udphdr *uh; |
register struct udphdr *uh; |
extern struct in_addr zeroin_addr; |
extern struct in_addr zeroin_addr; |
extern u_char inetctlerrmap[]; |
extern int inetctlerrmap[]; |
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void (*notify) __P((struct inpcb *, int)) = udp_notify; |
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int errno; |
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if (!PRC_IS_REDIRECT(cmd) && |
if ((unsigned)cmd >= PRC_NCMDS) |
((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0)) |
return; |
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errno = inetctlerrmap[cmd]; |
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if (PRC_IS_REDIRECT(cmd)) |
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notify = in_rtchange, ip = 0; |
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else if (cmd == PRC_HOSTDEAD) |
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ip = 0; |
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else if (errno == 0) |
return; |
return; |
if (ip) { |
if (ip) { |
uh = (struct udphdr *)((caddr_t)ip + (ip->ip_hl << 2)); |
uh = (struct udphdr *)((caddr_t)ip + (ip->ip_hl << 2)); |
in_pcbnotify(&udb, sa, uh->uh_dport, ip->ip_src, uh->uh_sport, |
in_pcbnotify(&udbtable, sa, uh->uh_dport, ip->ip_src, |
cmd, udp_notify); |
uh->uh_sport, errno, notify); |
} else |
} else |
in_pcbnotify(&udb, sa, 0, zeroin_addr, 0, cmd, udp_notify); |
in_pcbnotifyall(&udbtable, sa, errno, notify); |
} |
} |
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int |
int |
Line 498 udp_usrreq(so, req, m, addr, control) |
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Line 509 udp_usrreq(so, req, m, addr, control) |
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break; |
break; |
} |
} |
s = splnet(); |
s = splnet(); |
error = in_pcballoc(so, &udb); |
error = in_pcballoc(so, &udbtable); |
splx(s); |
splx(s); |
if (error) |
if (error) |
break; |
break; |
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int s = splnet(); |
int s = splnet(); |
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if (inp == udp_last_inpcb) |
if (inp == udp_last_inpcb) |
udp_last_inpcb = &udb; |
udp_last_inpcb = 0; |
in_pcbdetach(inp); |
in_pcbdetach(inp); |
splx(s); |
splx(s); |
} |
} |