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Implemented PCB hashing. Includes new functions in_pcbinshash, in_pcbrehash,

Browse Source 
and in_pcblookuphash.
This commit is contained in:
David Greenman 1995-04-09 01:29:31 +00:00
parent 17792ebcb7
commit 15bd2b4385
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=7684
16 changed files with 231 additions and 132 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

137
sys/netinet/in_pcb.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)in_pcb.c 8.2 (Berkeley) 1/4/94
* $Id: in_pcb.c,v 1.7 1995/03/14 21:50:55 davidg Exp $
* $Id: in_pcb.c,v 1.8 1995/03/16 18:14:51 bde Exp $
*/
#include <sys/param.h>
@ -45,6 +45,7 @@
#include <sys/errno.h>
#include <sys/time.h>
#include <sys/proc.h>
#include <sys/queue.h>
#include <net/if.h>
#include <net/route.h>
@ -59,9 +60,9 @@
struct in_addr zeroin_addr;
int
in_pcballoc(so, head)
in_pcballoc(so, pcbinfo)
struct socket *so;
struct inpcb *head;
struct inpcbinfo *pcbinfo;
{
register struct inpcb *inp;
@ -69,9 +70,10 @@ in_pcballoc(so, head)
if (inp == NULL)
return (ENOBUFS);
bzero((caddr_t)inp, sizeof(*inp));
inp->inp_head = head;
inp->inp_pcbinfo = pcbinfo;
inp->inp_socket = so;
insque(inp, head);
LIST_INSERT_HEAD(pcbinfo->listhead, inp, inp_list);
in_pcbinshash(inp);
so->so_pcb = (caddr_t)inp;
return (0);
}
@ -82,8 +84,9 @@ in_pcbbind(inp, nam)
struct mbuf *nam;
{
register struct socket *so = inp->inp_socket;
register struct inpcb *head = inp->inp_head;
register struct sockaddr_in *sin;
struct inpcbhead *head = inp->inp_pcbinfo->listhead;
unsigned short *lastport = &inp->inp_pcbinfo->lastport;
struct sockaddr_in *sin;
struct proc *p = curproc; /* XXX */
u_short lport = 0;
int wild = 0, reuseport = (so->so_options & SO_REUSEPORT);
@ -141,13 +144,15 @@ in_pcbbind(inp, nam)
}
if (lport == 0)
do {
if (head->inp_lport++ < IPPORT_RESERVED ||
head->inp_lport > IPPORT_USERRESERVED)
head->inp_lport = IPPORT_RESERVED;
lport = htons(head->inp_lport);
++*lastport;
if (*lastport < IPPORT_RESERVED ||
*lastport > IPPORT_USERRESERVED)
*lastport = IPPORT_RESERVED;
lport = htons(*lastport);
} while (in_pcblookup(head,
zeroin_addr, 0, inp->inp_laddr, lport, wild));
inp->inp_lport = lport;
in_pcbrehash(inp);
return (0);
}
@ -295,7 +300,7 @@ in_pcbconnect(inp, nam)
if (error = in_pcbladdr(inp, nam, &ifaddr))
return(error);
if (in_pcblookup(inp->inp_head,
if (in_pcblookup(inp->inp_pcbinfo->listhead,
sin->sin_addr,
sin->sin_port,
inp->inp_laddr.s_addr ? inp->inp_laddr : ifaddr->sin_addr,
@ -309,6 +314,7 @@ in_pcbconnect(inp, nam)
}
inp->inp_faddr = sin->sin_addr;
inp->inp_fport = sin->sin_port;
in_pcbrehash(inp);
return (0);
}
@ -319,6 +325,7 @@ in_pcbdisconnect(inp)
inp->inp_faddr.s_addr = INADDR_ANY;
inp->inp_fport = 0;
in_pcbrehash(inp);
if (inp->inp_socket->so_state & SS_NOFDREF)
in_pcbdetach(inp);
}
@ -336,7 +343,8 @@ in_pcbdetach(inp)
if (inp->inp_route.ro_rt)
rtfree(inp->inp_route.ro_rt);
ip_freemoptions(inp->inp_moptions);
remque(inp);
LIST_REMOVE(inp, inp_hash);
LIST_REMOVE(inp, inp_list);
FREE(inp, M_PCB);
}
@ -385,7 +393,7 @@ in_setpeeraddr(inp, nam)
*/
void
in_pcbnotify(head, dst, fport_arg, laddr, lport_arg, cmd, notify)
struct inpcb *head;
struct inpcbhead *head;
struct sockaddr *dst;
u_int fport_arg, lport_arg;
struct in_addr laddr;
@ -418,17 +426,17 @@ in_pcbnotify(head, dst, fport_arg, laddr, lport_arg, cmd, notify)
notify = in_rtchange;
}
errno = inetctlerrmap[cmd];
for (inp = head->inp_next; inp != head;) {
for (inp = head->lh_first; inp != NULL;) {
if (inp->inp_faddr.s_addr != faddr.s_addr ||
inp->inp_socket == 0 ||
(lport && inp->inp_lport != lport) ||
(laddr.s_addr && inp->inp_laddr.s_addr != laddr.s_addr) ||
(fport && inp->inp_fport != fport)) {
inp = inp->inp_next;
inp = inp->inp_list.le_next;
continue;
}
oinp = inp;
inp = inp->inp_next;
inp = inp->inp_list.le_next;
if (notify)
(*notify)(oinp, errno);
}
@ -489,7 +497,7 @@ in_rtchange(inp, errno)
struct inpcb *
in_pcblookup(head, faddr, fport_arg, laddr, lport_arg, flags)
struct inpcb *head;
struct inpcbhead *head;
struct in_addr faddr, laddr;
u_int fport_arg, lport_arg;
int flags;
@ -498,19 +506,10 @@ in_pcblookup(head, faddr, fport_arg, laddr, lport_arg, flags)
int matchwild = 3, wildcard;
u_short fport = fport_arg, lport = lport_arg;
for (inp = head->inp_next; inp != head; inp = inp->inp_next) {
for (inp = head->lh_first; inp != NULL; inp = inp->inp_list.le_next) {
if (inp->inp_lport != lport)
continue;
wildcard = 0;
if (inp->inp_laddr.s_addr != INADDR_ANY) {
if (laddr.s_addr == INADDR_ANY)
wildcard++;
else if (inp->inp_laddr.s_addr != laddr.s_addr)
continue;
} else {
if (laddr.s_addr != INADDR_ANY)
wildcard++;
}
if (inp->inp_faddr.s_addr != INADDR_ANY) {
if (faddr.s_addr == INADDR_ANY)
wildcard++;
@ -521,19 +520,93 @@ in_pcblookup(head, faddr, fport_arg, laddr, lport_arg, flags)
if (faddr.s_addr != INADDR_ANY)
wildcard++;
}
if (inp->inp_laddr.s_addr != INADDR_ANY) {
if (laddr.s_addr == INADDR_ANY)
wildcard++;
else if (inp->inp_laddr.s_addr != laddr.s_addr)
continue;
} else {
if (laddr.s_addr != INADDR_ANY)
wildcard++;
}
if (wildcard && (flags & INPLOOKUP_WILDCARD) == 0)
continue;
if (wildcard < matchwild) {
match = inp;
matchwild = wildcard;
if (matchwild == 0) {
if (match->inp_prev != head) {
remque(match);
insque(match, head);
}
break;
}
}
}
return (match);
}
/*
* Lookup PCB in hash list.
*/
struct inpcb *
in_pcblookuphash(pcbinfo, faddr, fport_arg, laddr, lport_arg)
struct inpcbinfo *pcbinfo;
struct in_addr faddr, laddr;
u_int fport_arg, lport_arg;
{
struct inpcbhead *head;
register struct inpcb *inp;
u_short fport = fport_arg, lport = lport_arg;
/*
* First look for an exact match.
*/
head = &pcbinfo->hashbase[(faddr.s_addr + lport + fport) % pcbinfo->hashsize];
for (inp = head->lh_first; inp != NULL; inp = inp->inp_hash.le_next) {
if (inp->inp_faddr.s_addr != faddr.s_addr ||
inp->inp_fport != fport ||
inp->inp_lport != lport ||
inp->inp_laddr.s_addr != laddr.s_addr)
continue;
/*
* Move PCB to head of this hash chain so that it can be
* found more quickly in the future.
*/
if (inp != head->lh_first) {
LIST_REMOVE(inp, inp_hash);
LIST_INSERT_HEAD(head, inp, inp_hash);
}
return (inp);
}
/*
* Didn't find an exact match, so try again looking for a matching
* wildcard PCB.
*/
return (in_pcblookup(pcbinfo->listhead, faddr, fport_arg, laddr,
lport_arg, INPLOOKUP_WILDCARD));
}
void
in_pcbinshash(inp)
struct inpcb *inp;
{
struct inpcbhead *head;
head = &inp->inp_pcbinfo->hashbase[(inp->inp_faddr.s_addr +
inp->inp_lport + inp->inp_fport) % inp->inp_pcbinfo->hashsize];
LIST_INSERT_HEAD(head, inp, inp_hash);
}
void
in_pcbrehash(inp)
struct inpcb *inp;
{
struct inpcbhead *head;
LIST_REMOVE(inp, inp_hash);
head = &inp->inp_pcbinfo->hashbase[(inp->inp_faddr.s_addr +
inp->inp_lport + inp->inp_fport) % inp->inp_pcbinfo->hashsize];
LIST_INSERT_HEAD(head, inp, inp_hash);
}

30
sys/netinet/in_pcb.h
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)in_pcb.h 8.1 (Berkeley) 6/10/93
* $Id: in_pcb.h,v 1.4 1994/08/21 05:27:28 paul Exp $
* $Id: in_pcb.h,v 1.5 1995/03/16 18:14:52 bde Exp $
*/
#ifndef _NETINET_IN_PCB_H_
@ -44,11 +44,12 @@
* up (to a socket structure) and down (to a protocol-specific)
* control block.
*/
LIST_HEAD(inpcbhead, inpcb);
struct inpcb {
struct inpcb *inp_next,*inp_prev;
/* pointers to other pcb's */
struct inpcb *inp_head; /* pointer back to chain of inpcb's
for this protocol */
LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */
LIST_ENTRY(inpcb) inp_hash; /* hash list */
struct inpcbinfo *inp_pcbinfo;
struct in_addr inp_faddr; /* foreign host table entry */
u_short inp_fport; /* foreign port */
struct in_addr inp_laddr; /* local host table entry */
@ -62,6 +63,13 @@ struct inpcb {
struct ip_moptions *inp_moptions; /* IP multicast options */
};
struct inpcbinfo {
struct inpcbhead *listhead;
struct inpcbhead *hashbase;
unsigned long hashsize;
unsigned short lastport;
};
/* flags in inp_flags: */
#define INP_RECVOPTS 0x01 /* receive incoming IP options */
#define INP_RECVRETOPTS 0x02 /* receive IP options for reply */
@ -70,24 +78,28 @@ struct inpcb {
#define INP_HDRINCL 0x08 /* user supplies entire IP header */
#define INPLOOKUP_WILDCARD 1
#define INPLOOKUP_SETLOCAL 2
#define sotoinpcb(so) ((struct inpcb *)(so)->so_pcb)
#ifdef KERNEL
void in_losing __P((struct inpcb *));
int in_pcballoc __P((struct socket *, struct inpcb *));
int in_pcballoc __P((struct socket *, struct inpcbinfo *));
int in_pcbbind __P((struct inpcb *, struct mbuf *));
int in_pcbconnect __P((struct inpcb *, struct mbuf *));
void in_pcbdetach __P((struct inpcb *));
void in_pcbdisconnect __P((struct inpcb *));
void in_pcbinshash __P((struct inpcb *));
int in_pcbladdr __P((struct inpcb *, struct mbuf *,
struct sockaddr_in **));
struct inpcb *
in_pcblookup __P((struct inpcb *,
in_pcblookup __P((struct inpcbhead *,
struct in_addr, u_int, struct in_addr, u_int, int));
void in_pcbnotify __P((struct inpcb *, struct sockaddr *,
struct inpcb *
in_pcblookuphash __P((struct inpcbinfo *,
struct in_addr, u_int, struct in_addr, u_int));
void in_pcbnotify __P((struct inpcbhead *, struct sockaddr *,
u_int, struct in_addr, u_int, int, void (*)(struct inpcb *, int)));
void in_pcbrehash __P((struct inpcb *));
void in_rtchange __P((struct inpcb *, int));
void in_setpeeraddr __P((struct inpcb *, struct mbuf *));
void in_setsockaddr __P((struct inpcb *, struct mbuf *));

3
sys/netinet/in_proto.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)in_proto.c 8.1 (Berkeley) 6/10/93
* $Id: in_proto.c,v 1.11 1995/02/09 23:13:20 wollman Exp $
* $Id: in_proto.c,v 1.12 1995/02/16 00:55:38 wollman Exp $
*/
#include <sys/param.h>
@ -39,6 +39,7 @@
#include <sys/protosw.h>
#include <sys/domain.h>
#include <sys/mbuf.h>
#include <sys/queue.h>
#include <net/if.h>
#include <net/radix.h>

1
sys/netinet/ip_mroute.c
View File

@ -21,6 +21,7 @@
#include <sys/time.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
#include <sys/queue.h>
#include <net/if.h>
#include <net/route.h>
#include <netinet/in.h>

3
sys/netinet/ip_output.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)ip_output.c 8.3 (Berkeley) 1/21/94
* $Id: ip_output.c,v 1.14 1995/03/20 18:11:31 wollman Exp $
* $Id: ip_output.c,v 1.15 1995/03/20 18:31:51 wollman Exp $
*/
#include <sys/param.h>
@ -42,6 +42,7 @@
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/queue.h>
#include <net/if.h>
#include <net/route.h>

20
sys/netinet/raw_ip.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)raw_ip.c 8.2 (Berkeley) 1/4/94
* $Id: raw_ip.c,v 1.15 1995/02/14 06:24:40 phk Exp $
* $Id: raw_ip.c,v 1.16 1995/03/16 16:25:43 wollman Exp $
*/
#include <sys/param.h>
@ -42,6 +42,7 @@
#include <sys/socketvar.h>
#include <sys/errno.h>
#include <sys/systm.h>
#include <sys/queue.h>
#include <net/if.h>
#include <net/route.h>
@ -55,7 +56,8 @@
#include <netinet/ip_fw.h>
struct inpcb rawinpcb;
struct inpcbhead ripcb;
struct inpcbinfo ripcbinfo;
/*
* Nominal space allocated to a raw ip socket.
@ -73,8 +75,14 @@ struct inpcb rawinpcb;
void
rip_init()
{
rawinpcb.inp_next = rawinpcb.inp_prev = &rawinpcb;
LIST_INIT(&ripcb);
ripcbinfo.listhead = &ripcb;
/*
* XXX We don't use the hash list for raw IP, but it's easier
* to allocate a one entry hash list than it is to check all
* over the place for hashbase == NULL.
*/
ripcbinfo.hashbase = phashinit(1, M_PCB, &ripcbinfo.hashsize);
}
struct sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET };
@ -92,7 +100,7 @@ rip_input(m)
struct socket *last = 0;
ripsrc.sin_addr = ip->ip_src;
for (inp = rawinpcb.inp_next; inp != &rawinpcb; inp = inp->inp_next) {
for (inp = ripcb.lh_first; inp != NULL; inp = inp->inp_list.le_next) {
if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != ip->ip_p)
continue;
if (inp->inp_laddr.s_addr &&
@ -317,7 +325,7 @@ rip_usrreq(so, req, m, nam, control)
break;
}
if ((error = soreserve(so, rip_sendspace, rip_recvspace)) ||
(error = in_pcballoc(so, &rawinpcb)))
(error = in_pcballoc(so, &ripcbinfo)))
break;
inp = (struct inpcb *)so->so_pcb;
inp->inp_ip.ip_p = (int)nam;

20
sys/netinet/tcp_input.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* From: @(#)tcp_input.c 8.5 (Berkeley) 4/10/94
* $Id: tcp_input.c,v 1.17 1995/03/27 07:12:24 davidg Exp $
* $Id: tcp_input.c,v 1.18 1995/04/05 10:32:14 olah Exp $
*/
#ifndef TUBA_INCLUDE
@ -43,6 +43,7 @@
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/errno.h>
#include <sys/queue.h>
#include <net/if.h>
#include <net/route.h>
@ -64,12 +65,12 @@ struct tcpiphdr tcp_saveti;
#endif
int tcprexmtthresh = 3;
struct inpcb *tcp_last_inpcb = &tcb;
tcp_seq tcp_iss;
tcp_cc tcp_ccgen;
struct inpcb tcb;
struct tcpstat tcpstat;
u_long tcp_now;
struct inpcbhead tcb;
struct inpcbinfo tcbinfo;
#endif /* TUBA_INCLUDE */
@ -333,17 +334,7 @@ tcp_input(m, iphlen)
* Locate pcb for segment.
*/
findpcb:
inp = tcp_last_inpcb;
if (inp->inp_lport != ti->ti_dport ||
inp->inp_fport != ti->ti_sport ||
inp->inp_faddr.s_addr != ti->ti_src.s_addr ||
inp->inp_laddr.s_addr != ti->ti_dst.s_addr) {
inp = in_pcblookup(&tcb, ti->ti_src, ti->ti_sport,
ti->ti_dst, ti->ti_dport, INPLOOKUP_WILDCARD);
if (inp)
tcp_last_inpcb = inp;
++tcpstat.tcps_pcbcachemiss;
}
inp = in_pcblookuphash(&tcbinfo, ti->ti_src, ti->ti_sport, ti->ti_dst, ti->ti_dport);
/*
* If the state is CLOSED (i.e., TCB does not exist) then
@ -393,6 +384,7 @@ tcp_input(m, iphlen)
inp = (struct inpcb *)so->so_pcb;
inp->inp_laddr = ti->ti_dst;
inp->inp_lport = ti->ti_dport;
in_pcbrehash(inp);
#if BSD>=43
inp->inp_options = ip_srcroute();
#endif

3
sys/netinet/tcp_output.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)tcp_output.c 8.3 (Berkeley) 12/30/93
* $Id: tcp_output.c,v 1.7 1995/02/09 23:13:24 wollman Exp $
* $Id: tcp_output.c,v 1.8 1995/02/16 00:55:40 wollman Exp $
*/
#include <sys/param.h>
@ -42,6 +42,7 @@
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/errno.h>
#include <sys/queue.h>
#include <net/route.h>

20
sys/netinet/tcp_reass.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* From: @(#)tcp_input.c 8.5 (Berkeley) 4/10/94
* $Id: tcp_input.c,v 1.17 1995/03/27 07:12:24 davidg Exp $
* $Id: tcp_input.c,v 1.18 1995/04/05 10:32:14 olah Exp $
*/
#ifndef TUBA_INCLUDE
@ -43,6 +43,7 @@
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/errno.h>
#include <sys/queue.h>
#include <net/if.h>
#include <net/route.h>
@ -64,12 +65,12 @@ struct tcpiphdr tcp_saveti;
#endif
int tcprexmtthresh = 3;
struct inpcb *tcp_last_inpcb = &tcb;
tcp_seq tcp_iss;
tcp_cc tcp_ccgen;
struct inpcb tcb;
struct tcpstat tcpstat;
u_long tcp_now;
struct inpcbhead tcb;
struct inpcbinfo tcbinfo;
#endif /* TUBA_INCLUDE */
@ -333,17 +334,7 @@ tcp_input(m, iphlen)
* Locate pcb for segment.
*/
findpcb:
inp = tcp_last_inpcb;
if (inp->inp_lport != ti->ti_dport ||
inp->inp_fport != ti->ti_sport ||
inp->inp_faddr.s_addr != ti->ti_src.s_addr ||
inp->inp_laddr.s_addr != ti->ti_dst.s_addr) {
inp = in_pcblookup(&tcb, ti->ti_src, ti->ti_sport,
ti->ti_dst, ti->ti_dport, INPLOOKUP_WILDCARD);
if (inp)
tcp_last_inpcb = inp;
++tcpstat.tcps_pcbcachemiss;
}
inp = in_pcblookuphash(&tcbinfo, ti->ti_src, ti->ti_sport, ti->ti_dst, ti->ti_dport);
/*
* If the state is CLOSED (i.e., TCB does not exist) then
@ -393,6 +384,7 @@ tcp_input(m, iphlen)
inp = (struct inpcb *)so->so_pcb;
inp->inp_laddr = ti->ti_dst;
inp->inp_lport = ti->ti_dport;
in_pcbrehash(inp);
#if BSD>=43
inp->inp_options = ip_srcroute();
#endif

18
sys/netinet/tcp_subr.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)tcp_subr.c 8.1 (Berkeley) 6/10/93
* $Id: tcp_subr.c,v 1.8 1995/03/06 02:49:24 nate Exp $
* $Id: tcp_subr.c,v 1.9 1995/03/16 18:15:05 bde Exp $
*/
#include <sys/param.h>
@ -43,6 +43,7 @@
#include <sys/socketvar.h>
#include <sys/protosw.h>
#include <sys/errno.h>
#include <sys/queue.h>
#include <net/route.h>
#include <net/if.h>
@ -71,7 +72,13 @@ int tcp_do_rfc1323 = 1;
int tcp_do_rfc1644 = 1;
static void tcp_cleartaocache(void);
extern struct inpcb *tcp_last_inpcb;
/*
* Target size of TCP PCB hash table. Will be rounded down to a prime
* number.
*/
#ifndef TCBHASHSIZE
#define TCBHASHSIZE 128
#endif
/*
* Tcp initialization
@ -83,7 +90,9 @@ tcp_init()
tcp_iss = 1; /* wrong */
tcp_ccgen = 1;
tcp_cleartaocache();
tcb.inp_next = tcb.inp_prev = &tcb;
LIST_INIT(&tcb);
tcbinfo.listhead = &tcb;
tcbinfo.hashbase = phashinit(TCBHASHSIZE, M_PCB, &tcbinfo.hashsize);
if (max_protohdr < sizeof(struct tcpiphdr))
max_protohdr = sizeof(struct tcpiphdr);
if (max_linkhdr + sizeof(struct tcpiphdr) > MHLEN)
@ -373,9 +382,6 @@ tcp_close(tp)
free(tp, M_PCB);
inp->inp_ppcb = 0;
soisdisconnected(so);
/* clobber input pcb cache if we're closing the cached connection */
if (inp == tcp_last_inpcb)
tcp_last_inpcb = &tcb;
in_pcbdetach(inp);
tcpstat.tcps_closed++;
return ((struct tcpcb *)0);

33
sys/netinet/tcp_timer.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)tcp_timer.c 8.1 (Berkeley) 6/10/93
* $Id: tcp_timer.c,v 1.3 1995/02/09 23:13:26 wollman Exp $
* $Id: tcp_timer.c,v 1.4 1995/02/16 00:55:42 wollman Exp $
*/
#ifndef TUBA_INCLUDE
@ -43,6 +43,7 @@
#include <sys/socketvar.h>
#include <sys/protosw.h>
#include <sys/errno.h>
#include <sys/queue.h>
#include <net/if.h>
#include <net/route.h>
@ -71,11 +72,11 @@ tcp_fasttimo()
{
register struct inpcb *inp;
register struct tcpcb *tp;
int s = splnet();
int s;
inp = tcb.inp_next;
if (inp)
for (; inp != &tcb; inp = inp->inp_next)
s = splnet();
for (inp = tcb.lh_first; inp != NULL; inp = inp->inp_list.le_next) {
if ((tp = (struct tcpcb *)inp->inp_ppcb) &&
(tp->t_flags & TF_DELACK)) {
tp->t_flags &= ~TF_DELACK;
@ -83,6 +84,7 @@ tcp_fasttimo()
tcpstat.tcps_delack++;
(void) tcp_output(tp);
}
}
splx(s);
}
@ -96,20 +98,23 @@ tcp_slowtimo()
{
register struct inpcb *ip, *ipnxt;
register struct tcpcb *tp;
int s = splnet();
register int i;
int s;
s = splnet();
tcp_maxidle = TCPTV_KEEPCNT * tcp_keepintvl;
/*
* Search through tcb's and update active timers.
*/
ip = tcb.inp_next;
if (ip == 0) {
ip = tcb.lh_first;
if (ip == NULL) {
splx(s);
return;
}
for (; ip != &tcb; ip = ipnxt) {
ipnxt = ip->inp_next;
/*
* Search through tcb's and update active timers.
*/
for (; ip != NULL; ip = ipnxt) {
ipnxt = ip->inp_list.le_next;
tp = intotcpcb(ip);
if (tp == 0)
continue;
@ -118,7 +123,7 @@ tcp_slowtimo()
(void) tcp_usrreq(tp->t_inpcb->inp_socket,
PRU_SLOWTIMO, (struct mbuf *)0,
(struct mbuf *)i, (struct mbuf *)0);
if (ipnxt->inp_prev != ip)
if (*ipnxt->inp_list.le_prev != ip)
goto tpgone;
}
}

18
sys/netinet/tcp_timewait.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)tcp_subr.c 8.1 (Berkeley) 6/10/93
* $Id: tcp_subr.c,v 1.8 1995/03/06 02:49:24 nate Exp $
* $Id: tcp_subr.c,v 1.9 1995/03/16 18:15:05 bde Exp $
*/
#include <sys/param.h>
@ -43,6 +43,7 @@
#include <sys/socketvar.h>
#include <sys/protosw.h>
#include <sys/errno.h>
#include <sys/queue.h>
#include <net/route.h>
#include <net/if.h>
@ -71,7 +72,13 @@ int tcp_do_rfc1323 = 1;
int tcp_do_rfc1644 = 1;
static void tcp_cleartaocache(void);
extern struct inpcb *tcp_last_inpcb;
/*
* Target size of TCP PCB hash table. Will be rounded down to a prime
* number.
*/
#ifndef TCBHASHSIZE
#define TCBHASHSIZE 128
#endif
/*
* Tcp initialization
@ -83,7 +90,9 @@ tcp_init()
tcp_iss = 1; /* wrong */
tcp_ccgen = 1;
tcp_cleartaocache();
tcb.inp_next = tcb.inp_prev = &tcb;
LIST_INIT(&tcb);
tcbinfo.listhead = &tcb;
tcbinfo.hashbase = phashinit(TCBHASHSIZE, M_PCB, &tcbinfo.hashsize);
if (max_protohdr < sizeof(struct tcpiphdr))
max_protohdr = sizeof(struct tcpiphdr);
if (max_linkhdr + sizeof(struct tcpiphdr) > MHLEN)
@ -373,9 +382,6 @@ tcp_close(tp)
free(tp, M_PCB);
inp->inp_ppcb = 0;
soisdisconnected(so);
/* clobber input pcb cache if we're closing the cached connection */
if (inp == tcp_last_inpcb)
tcp_last_inpcb = &tcb;
in_pcbdetach(inp);
tcpstat.tcps_closed++;
return ((struct tcpcb *)0);

9
sys/netinet/tcp_usrreq.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* From: @(#)tcp_usrreq.c 8.2 (Berkeley) 1/3/94
* $Id: tcp_usrreq.c,v 1.11 1995/02/17 00:29:42 wollman Exp $
* $Id: tcp_usrreq.c,v 1.12 1995/03/16 18:15:06 bde Exp $
*/
#include <sys/param.h>
@ -184,7 +184,7 @@ tcp_usrreq(so, req, m, nam, control)
*/
case PRU_LISTEN:
if (inp->inp_lport == 0)
error = in_pcbbind(inp, (struct mbuf *)0);
error = in_pcbbind(inp, NULL);
if (error == 0)
tp->t_state = TCPS_LISTEN;
break;
@ -408,7 +408,7 @@ tcp_connect(tp, nam)
* TIME_WAIT state, creating an ADDRINUSE error.
*/
error = in_pcbladdr(inp, nam, &ifaddr);
oinp = in_pcblookup(inp->inp_head,
oinp = in_pcblookup(inp->inp_pcbinfo->listhead,
sin->sin_addr, sin->sin_port,
inp->inp_laddr.s_addr != INADDR_ANY ? inp->inp_laddr
: ifaddr->sin_addr,
@ -426,6 +426,7 @@ tcp_connect(tp, nam)
inp->inp_laddr = ifaddr->sin_addr;
inp->inp_faddr = sin->sin_addr;
inp->inp_fport = sin->sin_port;
in_pcbrehash(inp);
tp->t_template = tcp_template(tp);
if (tp->t_template == 0) {
@ -578,7 +579,7 @@ tcp_attach(so)
if (error)
return (error);
}
error = in_pcballoc(so, &tcb);
error = in_pcballoc(so, &tcbinfo);
if (error)
return (error);
inp = sotoinpcb(so);

6
sys/netinet/tcp_var.h
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)tcp_var.h 8.3 (Berkeley) 4/10/94
* $Id: tcp_var.h,v 1.9 1995/02/16 00:55:44 wollman Exp $
* $Id: tcp_var.h,v 1.10 1995/03/16 18:15:07 bde Exp $
*/
#ifndef _NETINET_TCP_VAR_H_
@ -307,13 +307,15 @@ struct tcpstat {
}
#ifdef KERNEL
extern struct inpcb tcb; /* head of queue of active tcpcb's */
extern struct inpcbhead tcb; /* head of queue of active tcpcb's */
extern struct inpcbinfo tcbinfo;
extern struct tcpstat tcpstat; /* tcp statistics */
extern int tcp_do_rfc1323; /* XXX */
extern int tcp_do_rfc1644; /* XXX */
extern int tcp_mssdflt; /* XXX */
extern u_long tcp_now; /* for RFC 1323 timestamps */
extern int tcp_rttdflt; /* XXX */
extern u_short tcp_lastport; /* last assigned port */
int tcp_attach __P((struct socket *));
void tcp_canceltimers __P((struct tcpcb *));

37
sys/netinet/udp_usrreq.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)udp_usrreq.c 8.4 (Berkeley) 1/21/94
* $Id: udp_usrreq.c,v 1.7 1995/02/16 01:47:36 wollman Exp $
* $Id: udp_usrreq.c,v 1.8 1995/03/16 18:15:09 bde Exp $
*/
#include <sys/param.h>
@ -43,6 +43,7 @@
#include <sys/socketvar.h>
#include <sys/errno.h>
#include <sys/stat.h>
#include <sys/queue.h>
#include <vm/vm.h>
#include <sys/sysctl.h>
@ -69,11 +70,16 @@ int udpcksum = 1;
int udpcksum = 0; /* XXX */
#endif
struct inpcb udb; /* from udp_var.h */
struct inpcbhead udb; /* from udp_var.h */
struct inpcbinfo udbinfo;
#ifndef UDBHASHSIZE
#define UDBHASHSIZE 64
#endif
struct udpstat udpstat; /* from udp_var.h */
struct sockaddr_in udp_in = { sizeof(udp_in), AF_INET };
struct inpcb *udp_last_inpcb = &udb;
static void udp_detach __P((struct inpcb *));
static void udp_notify __P((struct inpcb *, int));
@ -82,7 +88,9 @@ static struct mbuf *udp_saveopt __P((caddr_t, int, int));
void
udp_init()
{
udb.inp_next = udb.inp_prev = &udb;
LIST_INIT(&udb);
udbinfo.listhead = &udb;
udbinfo.hashbase = phashinit(UDBHASHSIZE, M_PCB, &udbinfo.hashsize);
}
void
@ -189,7 +197,7 @@ udp_input(m, iphlen)
* (Algorithm copied from raw_intr().)
*/
last = NULL;
for (inp = udb.inp_next; inp != &udb; inp = inp->inp_next) {
for (inp = udb.lh_first; inp != NULL; inp = inp->inp_list.le_next) {
if (inp->inp_lport != uh->uh_dport)
continue;
if (inp->inp_laddr.s_addr != INADDR_ANY) {
@ -250,18 +258,9 @@ udp_input(m, iphlen)
/*
* Locate pcb for datagram.
*/
inp = udp_last_inpcb;
if (inp->inp_lport != uh->uh_dport ||
inp->inp_fport != uh->uh_sport ||
inp->inp_faddr.s_addr != ip->ip_src.s_addr ||
inp->inp_laddr.s_addr != ip->ip_dst.s_addr) {
inp = in_pcblookup(&udb, ip->ip_src, uh->uh_sport,
ip->ip_dst, uh->uh_dport, INPLOOKUP_WILDCARD);
if (inp)
udp_last_inpcb = inp;
udpstat.udpps_pcbcachemiss++;
}
if (inp == 0) {
inp = in_pcblookuphash(&udbinfo, ip->ip_src, uh->uh_sport,
ip->ip_dst, uh->uh_dport);
if (inp == NULL) {
udpstat.udps_noport++;
if (m->m_flags & (M_BCAST | M_MCAST)) {
udpstat.udps_noportbcast++;
@ -503,7 +502,7 @@ udp_usrreq(so, req, m, addr, control)
break;
}
s = splnet();
error = in_pcballoc(so, &udb);
error = in_pcballoc(so, &udbinfo);
splx(s);
if (error)
break;
@ -617,8 +616,6 @@ udp_detach(inp)
{
int s = splnet();
if (inp == udp_last_inpcb)
udp_last_inpcb = &udb;
in_pcbdetach(inp);
splx(s);
}

5
sys/netinet/udp_var.h
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)udp_var.h 8.1 (Berkeley) 6/10/93
* $Id: udp_var.h,v 1.3 1994/08/21 05:27:42 paul Exp $
* $Id: udp_var.h,v 1.4 1995/02/16 00:27:47 wollman Exp $
*/
#ifndef _NETINET_UDP_VAR_H_
@ -88,7 +88,8 @@ struct udpstat {
}
#ifdef KERNEL
extern struct inpcb udb;
extern struct inpcbhead udb;
extern struct inpcbinfo udbinfo;
extern struct udpstat udpstat;
void udp_ctlinput __P((int, struct sockaddr *, struct ip *));