/sys/src/9/ip/icmp6.c
% cat >/sys/lib/dist/changes/1176939006.0.txt << EOF
Code cleanup
• Whitespace / style
• Comments
• Where possible, condense conditionals
EOF
[geoff] --rw-rw-r-- M 44 presotto sys 17893 Apr 18 19:10 sys/src/9/ip/icmp6.c
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/icmp6.c:284,293 -
/n/sources/plan9/sys/src/9/ip/icmp6.c:284,293
static void
goticmpkt6(Proto *icmp, Block *bp, int muxkey)
{
- ushort recid;
- uchar *addr;
- Conv **c, *s;
- IPICMP *p = (IPICMP *)bp->rp;
+ ushort recid;
+ uchar *addr;
+ Conv **c, *s;
+ IPICMP *p = (IPICMP *)bp->rp;
if(muxkey == 0) {
recid = nhgets(p->icmpid);
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/icmp6.c:609,620 -
/n/sources/plan9/sys/src/9/ip/icmp6.c:609,620
goto err;
}
- if(p->type == NbrSolicit)
- if(ipcmp(np->src, v6Unspecified) == 0)
- if(!issmcast(np->dst) || optexsts(np)) {
- ipriv->stats[AddrmxpErrs6]++;
- goto err;
- }
+ if (p->type == NbrSolicit &&
+ ipcmp(np->src, v6Unspecified) == 0)
+ if(!issmcast(np->dst) || optexsts(np)) {
+ ipriv->stats[AddrmxpErrs6]++;
+ goto err;
+ }
if(p->type == NbrAdvert)
if(isv6mcast(np->dst) &&
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/icmp6.c:670,678 -
/n/sources/plan9/sys/src/9/ip/icmp6.c:670,676
goto err;
}
}
-
return 1;
-
err:
ipriv->stats[InErrors6]++;
return 0;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/icmp6.c:692,698 -
/n/sources/plan9/sys/src/9/ip/icmp6.c:690,696
for(lifc = ifc->lifc; lifc; lifc = lifc->next)
if(ipcmp(lifc->local, target) == 0) {
- t = (lifc->tentative) ? t_unitent : t_unirany;
+ t = (lifc->tentative)? t_unitent: t_unirany;
runlock(ifc);
return t;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/icmp6.c:761,767 -
/n/sources/plan9/sys/src/9/ip/icmp6.c:759,765
}
p = (IPICMP *)bp->rp;
pr = Fsrcvpcolx(icmp->f, p->proto);
- if(pr != nil && pr->advise != nil) {
+ if(pr && pr->advise) {
(*pr->advise)(pr, bp, m2);
return;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/icmp6.c:837,843 -
/n/sources/plan9/sys/src/9/ip/icmp6.c:835,840
break;
}
return;
-
raise:
freeblist(bp);
}
[geoff] --rw-rw-r-- M 44 glenda sys 33863 Apr 18 19:12 sys/src/9/ip/ipifc.c
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:13,27 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:13,24
enum {
Maxmedia = 32,
Nself = Maxmedia*5,
- NHASH = (1<<6),
+ NHASH = 1<<6,
NCACHE = 256,
QMAX = 64*1024-1,
};
- Medium *media[Maxmedia] =
- {
- 0
- };
+ Medium *media[Maxmedia] = { 0 };
/*
* cache of local addresses (addresses we answer to)
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:144,158 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:141,155
ifc->maxtu = ifc->m->maxtu;
if(ifc->m->unbindonclose == 0)
ifc->conv->inuse++;
- ifc->rp.mflag = 0; // default not managed
+ ifc->rp.mflag = 0; /* default not managed */
ifc->rp.oflag = 0;
- ifc->rp.maxraint = 600000; // millisecs
+ ifc->rp.maxraint = 600000; /* millisecs */
ifc->rp.minraint = 200000;
- ifc->rp.linkmtu = 0; // no mtu sent
+ ifc->rp.linkmtu = 0; /* no mtu sent */
ifc->rp.reachtime = 0;
ifc->rp.rxmitra = 0;
ifc->rp.ttl = MAXTTL;
- ifc->rp.routerlt = 3*(ifc->rp.maxraint);
+ ifc->rp.routerlt = 3 * ifc->rp.maxraint;
/* any ancillary structures (like routes) no longer pertain */
ifc->ifcid++;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:189,195 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:186,192
ifc->ifcid++;
/* disassociate device */
- if(ifc->m != nil && ifc->m->unbind)
+ if(ifc->m && ifc->m->unbind)
(*ifc->m->unbind)(ifc);
memset(ifc->dev, 0, sizeof(ifc->dev));
ifc->arg = nil;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:213,219 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:210,218
return nil;
}
- char sfixedformat[] = "device %s maxtu %d sendra %d recvra %d mflag %d oflag %d maxraint %d minraint %d linkmtu %d reachtime %d rxmitra %d ttl %d routerlt %d pktin %lud pktout %lud errin %lud errout %lud\n";
+ char sfixedformat[] = "device %s maxtu %d sendra %d recvra %d mflag %d oflag"
+ " %d maxraint %d minraint %d linkmtu %d reachtime %d rxmitra %d ttl %d routerlt"
+ " %d pktin %lud pktout %lud errin %lud errout %lud\n";
char slineformat[] = " %-40I %-10M %-40I %-12lud %-12lud\n";
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:225,231 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:224,229
int m;
ifc = (Ipifc*)c->ptcl;
-
m = snprint(state, n, sfixedformat,
ifc->dev, ifc->maxtu, ifc->sendra6, ifc->recvra6,
ifc->rp.mflag, ifc->rp.oflag, ifc->rp.maxraint,
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:235,243 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:233,240
rlock(ifc);
for(lifc = ifc->lifc; lifc && n > m; lifc = lifc->next)
- m += snprint(state+m, n - m, slineformat,
- lifc->local, lifc->mask, lifc->remote,
- lifc->validlt, lifc->preflt);
+ m += snprint(state+m, n - m, slineformat, lifc->local,
+ lifc->mask, lifc->remote, lifc->validlt, lifc->preflt);
if(ifc->lifc == nil)
m += snprint(state+m, n - m, "\n");
runlock(ifc);
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:253,259 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:250,255
int m;
ifc = (Ipifc*)c->ptcl;
-
m = 0;
rlock(ifc);
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:337,343 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:333,339
ifc = (Ipifc*)c->ptcl;
m = ifc->m;
- if(m != nil && m->unbindonclose)
+ if(m && m->unbindonclose)
ipifcunbind(ifc);
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:349,358 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:345,352
{
int mtu;
- if(argc < 2)
+ if(argc < 2 || ifc->m == nil)
return Ebadarg;
- if(ifc->m == nil)
- return Ebadarg;
mtu = strtoul(argv[1], 0, 0);
if(mtu < ifc->m->mintu || mtu > ifc->m->maxtu)
return Ebadarg;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:366,377 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:360,370
char*
ipifcadd(Ipifc *ifc, char **argv, int argc, int tentative, Iplifc *lifcp)
{
+ int i, type, mtu, sendnbrdisc = 0;
uchar ip[IPaddrlen], mask[IPaddrlen], rem[IPaddrlen];
uchar bcast[IPaddrlen], net[IPaddrlen];
Iplifc *lifc, **l;
- int i, type, mtu;
Fs *f;
- int sendnbrdisc = 0;
if(ifc->m == nil)
return "ipifc not yet bound to device";
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:412,418 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:405,410
break;
default:
return Ebadarg;
- break;
}
if(isv4(ip))
tentative = 0;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:419,425 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:411,417
wlock(ifc);
/* ignore if this is already a local address for this ifc */
- for(lifc = ifc->lifc; lifc; lifc = lifc->next) {
+ for(lifc = ifc->lifc; lifc; lifc = lifc->next)
if(ipcmp(lifc->local, ip) == 0) {
if(lifc->tentative != tentative)
lifc->tentative = tentative;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:432,438 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:424,429
}
goto out;
}
- }
/* add the address to the list of logical ifc's for this ifc */
lifc = smalloc(sizeof(Iplifc));
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:447,459 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:438,449
lifc->validlt = lifcp->validlt;
lifc->preflt = lifcp->preflt;
lifc->origint = lifcp->origint;
- }
- else { // default values
+ } else { /* default values */
lifc->onlink = 1;
lifc->autoflag = 1;
- lifc->validlt = 0xffffffff;
- lifc->preflt = 0xffffffff;
- lifc->origint = NOW / 10^3;
+ lifc->validlt = ~0L;
+ lifc->preflt = ~0L;
+ lifc->origint = NOW / 1000;
}
lifc->next = nil;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:462,468 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:452,458
*l = lifc;
/* check for point-to-point interface */
- if(ipcmp(ip, v6loopback)) /* skip v6 loopback, it's a special address */
+ if(ipcmp(ip, v6loopback)) /* skip v6 loopback, it's a special address */
if(ipcmp(mask, IPallbits) == 0)
type |= Rptpt;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:503,516 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:493,506
addselfcache(f, ifc, lifc, bcast, Rbcast);
addselfcache(f, ifc, lifc, IPv4bcast, Rbcast);
- }
- else {
+ } else {
if(ipcmp(ip, v6loopback) == 0) {
/* add node-local mcast address */
addselfcache(f, ifc, lifc, v6allnodesN, Rmulti);
/* add route for all node multicast */
- v6addroute(f, tifc, v6allnodesN, v6allnodesNmask, v6allnodesN, Rmulti);
+ v6addroute(f, tifc, v6allnodesN, v6allnodesNmask,
+ v6allnodesN, Rmulti);
}
/* add all nodes multicast address */
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:517,523 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:507,514
addselfcache(f, ifc, lifc, v6allnodesL, Rmulti);
/* add route for all nodes multicast */
- v6addroute(f, tifc, v6allnodesL, v6allnodesLmask, v6allnodesL, Rmulti);
+ v6addroute(f, tifc, v6allnodesL, v6allnodesLmask, v6allnodesL,
+ Rmulti);
/* add solicited-node multicast address */
ipv62smcast(bcast, ip);
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:579,585 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:570,575
free(lifc);
return nil;
-
}
/*
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:589,599 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:579,587
char*
ipifcrem(Ipifc *ifc, char **argv, int argc)
{
- uchar ip[IPaddrlen];
- uchar mask[IPaddrlen];
- uchar rem[IPaddrlen];
- Iplifc *lifc;
char *rv;
+ uchar ip[IPaddrlen], mask[IPaddrlen], rem[IPaddrlen];
+ Iplifc *lifc;
if(argc < 3)
return Ebadarg;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:612,623 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:600,610
* for pt to pt we actually specify the remote address as the
* addresss to remove.
*/
- for(lifc = ifc->lifc; lifc != nil; lifc = lifc->next) {
+ for(lifc = ifc->lifc; lifc != nil; lifc = lifc->next)
if (memcmp(ip, lifc->local, IPaddrlen) == 0
&& memcmp(mask, lifc->mask, IPaddrlen) == 0
&& memcmp(rem, lifc->remote, IPaddrlen) == 0)
break;
- }
rv = ipifcremlifc(ifc, lifc);
wunlock(ifc);
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:636,651 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:623,635
Ipifc *ifc;
e = &f->ipifc->conv[f->ipifc->nc];
- for(cp = f->ipifc->conv; cp < e; cp++){
+ for(cp = f->ipifc->conv; cp < e; cp++)
if(*cp != nil) {
ifc = (Ipifc*)(*cp)->ptcl;
m = ifc->m;
- if(m == nil)
- continue;
- if(m->addroute != nil)
+ if(m && m->addroute)
m->addroute(ifc, vers, addr, mask, gate, type);
}
- }
}
void
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:656,671 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:640,652
Ipifc *ifc;
e = &f->ipifc->conv[f->ipifc->nc];
- for(cp = f->ipifc->conv; cp < e; cp++){
+ for(cp = f->ipifc->conv; cp < e; cp++)
if(*cp != nil) {
ifc = (Ipifc*)(*cp)->ptcl;
m = ifc->m;
- if(m == nil)
- continue;
- if(m->remroute != nil)
+ if(m && m->remroute)
m->remroute(ifc, vers, addr, mask);
}
- }
}
/*
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:702,708 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:683,688
return err;
Fsconnected(c, nil);
-
return nil;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:718,744 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:698,724
return Ebadarg;
while (argsleft > 1) {
- if(strcmp(argv[i],"recvra")==0)
+ if(strcmp(argv[i], "recvra") == 0)
ifc->recvra6 = (atoi(argv[i+1]) != 0);
- else if(strcmp(argv[i],"sendra")==0)
+ else if(strcmp(argv[i], "sendra") == 0)
ifc->sendra6 = (atoi(argv[i+1]) != 0);
- else if(strcmp(argv[i],"mflag")==0)
+ else if(strcmp(argv[i], "mflag") == 0)
ifc->rp.mflag = (atoi(argv[i+1]) != 0);
- else if(strcmp(argv[i],"oflag")==0)
+ else if(strcmp(argv[i], "oflag") == 0)
ifc->rp.oflag = (atoi(argv[i+1]) != 0);
- else if(strcmp(argv[i],"maxraint")==0)
+ else if(strcmp(argv[i], "maxraint") == 0)
ifc->rp.maxraint = atoi(argv[i+1]);
- else if(strcmp(argv[i],"minraint")==0)
+ else if(strcmp(argv[i], "minraint") == 0)
ifc->rp.minraint = atoi(argv[i+1]);
- else if(strcmp(argv[i],"linkmtu")==0)
+ else if(strcmp(argv[i], "linkmtu") == 0)
ifc->rp.linkmtu = atoi(argv[i+1]);
- else if(strcmp(argv[i],"reachtime")==0)
+ else if(strcmp(argv[i], "reachtime") == 0)
ifc->rp.reachtime = atoi(argv[i+1]);
- else if(strcmp(argv[i],"rxmitra")==0)
+ else if(strcmp(argv[i], "rxmitra") == 0)
ifc->rp.rxmitra = atoi(argv[i+1]);
- else if(strcmp(argv[i],"ttl")==0)
+ else if(strcmp(argv[i], "ttl") == 0)
ifc->rp.ttl = atoi(argv[i+1]);
- else if(strcmp(argv[i],"routerlt")==0)
+ else if(strcmp(argv[i], "routerlt") == 0)
ifc->rp.routerlt = atoi(argv[i+1]);
else
return Ebadarg;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:747,759 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:727,738
i += 2;
}
- // consistency check
+ /* consistency check */
if(ifc->rp.maxraint < ifc->rp.minraint) {
ifc->rp.maxraint = vmax;
ifc->rp.minraint = vmin;
return Ebadarg;
}
-
return nil;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:760,771 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:739,745
char*
ipifcsendra6(Ipifc *ifc, char **argv, int argc)
{
- int i;
-
- i = 0;
- if(argc > 1)
- i = atoi(argv[1]);
- ifc->sendra6 = (i!=0);
+ ifc->sendra6 = ((argc > 1? atoi(argv[1]): 0) != 0);
return nil;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:772,783 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:746,752
char*
ipifcrecvra6(Ipifc *ifc, char **argv, int argc)
{
- int i;
-
- i = 0;
- if(argc > 1)
- i = atoi(argv[1]);
- ifc->recvra6 = (i!=0);
+ ifc->recvra6 = ((argc > 1? atoi(argv[1]): 0) != 0);
return nil;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:789,795 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:758,763
ipifcctl(Conv* c, char**argv, int argc)
{
Ipifc *ifc;
- int i;
ifc = (Ipifc*)c->ptcl;
if(strcmp(argv[0], "add") == 0)
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:809,823 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:777,786
else if(strcmp(argv[0], "reassemble") == 0){
ifc->reassemble = 1;
return nil;
- }
- else if(strcmp(argv[0], "iprouting") == 0){
- i = 1;
- if(argc > 1)
- i = atoi(argv[1]);
- iprouting(c->p->f, i);
+ } else if(strcmp(argv[0], "iprouting") == 0){
+ iprouting(c->p->f, (argc > 1? atoi(argv[1]): 1));
return nil;
- }
- else if(strcmp(argv[0], "addpref6") == 0)
+ } else if(strcmp(argv[0], "addpref6") == 0)
return ipifcaddpref6(ifc, argv, argc);
else if(strcmp(argv[0], "setpar6") == 0)
return ipifcsetpar6(ifc, argv, argc);
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:857,863 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:820,826
ipifc->nc = Maxmedia;
ipifc->ptclsize = sizeof(Ipifc);
- f->ipifc = ipifc; /* hack for ipifcremroute, findipifc, ... */
+ f->ipifc = ipifc; /* hack for ipifcremroute, findipifc, ... */
f->self = smalloc(sizeof(Ipselftab)); /* hack for ipforme */
Fsproto(f, ipifc);
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:913,927 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:876,890
/* add to routing table */
if(isv4(a))
- v4addroute(f, tifc, a+IPv4off, IPallbits+IPv4off, a+IPv4off, type);
+ v4addroute(f, tifc, a+IPv4off, IPallbits+IPv4off,
+ a+IPv4off, type);
else
v6addroute(f, tifc, a, IPallbits, a, type);
if((type & Rmulti) && ifc->m->addmulti != nil)
(*ifc->m->addmulti)(ifc, a, lifc->local);
- } else {
+ } else
lp->ref++;
- }
qunlock(f->self);
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:950,956 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:913,919
}
l = &np->next;
}
- p->expire = now + 5000; /* give other threads 5 secs to get out */
+ p->expire = now + 5000; /* give other threads 5 secs to get out */
p->next = nil;
*l = p;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:969,975 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:932,938
}
l = &np->next;
}
- p->expire = now + 5000; /* give other threads 5 secs to get out */
+ p->expire = now + 5000; /* give other threads 5 secs to get out */
p->next = nil;
*l = p;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1018,1024 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:981,987
*/
l_self = &p->link;
for(link = *l_self; link; link = *l_self){
- if(link == *(l_lifc))
+ if(link == *l_lifc)
break;
l_self = &link->selflink;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1075,1081 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1038,1044
m = 0;
off = offset;
qlock(f->self);
- for(i = 0; i < NHASH && m < n; i++){
+ for(i = 0; i < NHASH && m < n; i++)
for(p = f->self->hash[i]; p != nil && m < n; p = p->next){
nifc = 0;
for(link = p->link; link; link = link->selflink)
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1087,1093 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1050,1055
m = 0;
}
}
- }
qunlock(f->self);
return m;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1098,1108 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1060,1068
Ipself *p;
p = f->self->hash[hashipa(addr)];
- for(; p; p = p->next){
- if(ipcmp(addr, p->a) == 0) {
+ for(; p; p = p->next)
+ if(ipcmp(addr, p->a) == 0)
return p->link->lifc->tentative;
- }
- }
return 0;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1119,1133 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1079,1091
Ipself *p;
p = f->self->hash[hashipa(addr)];
- for(; p; p = p->next){
+ for(; p; p = p->next)
if(ipcmp(addr, p->a) == 0)
return p->type;
- }
/* hack to say accept anything */
if(f->self->acceptall)
return Runi;
-
return 0;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1141,1150 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1099,1108
Ipifc *ifc, *x;
Iplifc *lifc;
Conv **cp, **e;
- uchar gnet[IPaddrlen];
- uchar xmask[IPaddrlen];
+ uchar gnet[IPaddrlen], xmask[IPaddrlen];
- x = nil; memset(xmask, 0, IPaddrlen);
+ x = nil;
+ memset(xmask, 0, IPaddrlen);
/* find most specific match */
e = &f->ipifc->conv[f->ipifc->nc];
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1151,1167 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1109,1122
for(cp = f->ipifc->conv; cp < e; cp++){
if(*cp == 0)
continue;
-
ifc = (Ipifc*)(*cp)->ptcl;
-
for(lifc = ifc->lifc; lifc; lifc = lifc->next){
maskip(remote, lifc->mask, gnet);
- if(ipcmp(gnet, lifc->net) == 0){
+ if(ipcmp(gnet, lifc->net) == 0)
if(x == nil || ipcmp(lifc->mask, xmask) > 0){
x = ifc;
ipmove(xmask, lifc->mask);
}
- }
}
}
if(x != nil)
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1168,1174 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1123,1129
return x;
/* for now for broadcast and multicast, just use first interface */
- if(type & (Rbcast|Rmulti)){
+ if(type & (Rbcast|Rmulti))
for(cp = f->ipifc->conv; cp < e; cp++){
if(*cp == 0)
continue;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1176,1188 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1131,1141
if(ifc->lifc != nil)
return ifc;
}
- }
-
return nil;
}
enum {
- unknownv6,
+ unknownv6, /* UGH */
multicastv6,
unspecifiedv6,
linklocalv6,
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1204,1218 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1157,1172
return unknownv6;
}
- #define v6addrcurr(lifc) (( (lifc)->origint + (lifc)->preflt >= (NOW/10^3) ) || ( (lifc)->preflt == 0xffffffff ))
+ #define v6addrcurr(lifc) ((lifc)->origint + (lifc)->preflt >= NOW/1000 || \
+ (lifc)->preflt == ~0L)
static void
findprimaryipv6(Fs *f, uchar *local)
{
+ int atype, atypel;
Conv **cp, **e;
Ipifc *ifc;
Iplifc *lifc;
- int atype, atypel;
ipmove(local, v6Unspecified);
atype = unspecifiedv6;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1227,1234 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1181,1187
ifc = (Ipifc*)(*cp)->ptcl;
for(lifc = ifc->lifc; lifc; lifc = lifc->next){
atypel = v6addrtype(lifc->local);
- if(atypel > atype)
- if(v6addrcurr(lifc)) {
+ if(atypel > atype && v6addrcurr(lifc)) {
ipmove(local, lifc->local);
atype = atypel;
if(atype == globalv6)
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1268,1286 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1221,1237
void
findlocalip(Fs *f, uchar *local, uchar *remote)
{
+ int version, atype = unspecifiedv6, atypel = unknownv6;
+ uchar gate[IPaddrlen], gnet[IPaddrlen];
Ipifc *ifc;
Iplifc *lifc;
Route *r;
- uchar gate[IPaddrlen];
- uchar gnet[IPaddrlen];
- int version;
- int atype = unspecifiedv6, atypel = unknownv6;
USED(atype);
USED(atypel);
qlock(f->ipifc);
r = v6lookup(f, remote, nil);
- version = (memcmp(remote, v4prefix, IPv4off) == 0) ? V4 : V6;
+ version = (memcmp(remote, v4prefix, IPv4off) == 0)? V4: V6;
if(r != nil){
ifc = r->ifc;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1306,1314 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1257,1264
for(lifc = ifc->lifc; lifc; lifc = lifc->next){
atypel = v6addrtype(lifc->local);
maskip(gate, lifc->mask, gnet);
- if(ipcmp(gnet, lifc->net) == 0)
- if(atypel > atype)
- if(v6addrcurr(lifc)) {
+ if (ipcmp(gnet, lifc->net) == 0 &&
+ atypel > atype && v6addrcurr(lifc)) {
ipmove(local, lifc->local);
atype = atypel;
if(atype == globalv6)
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1346,1357 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1296,1306
{
Iplifc *lifc;
- for(lifc = ifc->lifc; lifc; lifc = lifc->next){
+ for(lifc = ifc->lifc; lifc; lifc = lifc->next)
if(isv4(lifc->local)){
memmove(addr, lifc->local+IPv4off, IPv4addrlen);
return 1;
}
- }
return 0;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1363,1374 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1312,1322
{
Iplifc *lifc;
- for(lifc = ifc->lifc; lifc; lifc = lifc->next){
+ for(lifc = ifc->lifc; lifc; lifc = lifc->next)
if(!isv4(lifc->local) && !(lifc->tentative)){
ipmove(addr, lifc->local);
return 1;
}
- }
return 0;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1377,1388 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1325,1335
{
Iplifc *lifc;
- for(lifc = ifc->lifc; lifc; lifc = lifc->next){
+ for(lifc = ifc->lifc; lifc; lifc = lifc->next)
if(!isv4(lifc->local)){
ipmove(addr, lifc->local);
return SRC_UNI;
}
- }
return SRC_UNSPEC;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1413,1422 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1360,1367
/* see if this is a direct connected pt to pt address */
r = v6lookup(f, ip, nil);
- if(r == nil)
+ if(r == nil || (r->type & (Rifc|Rproxy)) != (Rifc|Rproxy))
return 0;
- if((r->type & (Rifc|Rproxy)) != (Rifc|Rproxy))
- return 0;
/* see if this is on the right interface */
for(lifc = ifc->lifc; lifc; lifc = lifc->next){
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1424,1430 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1369,1374
if(ipcmp(net, lifc->remote) == 0)
return 1;
}
-
return 0;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1437,1460 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1381,1402
if(isv4(ip)){
if(ip[IPv4off] >= 0xe0 && ip[IPv4off] < 0xf0)
return V4;
- } else {
+ } else
if(ip[0] == 0xff)
return V6;
- }
return 0;
}
int
ipisbm(uchar *ip)
{
- if(isv4(ip)){
+ if(isv4(ip))
if(ip[IPv4off] >= 0xe0 && ip[IPv4off] < 0xf0)
return V4;
- if(ipcmp(ip, IPv4bcast) == 0)
+ else if(ipcmp(ip, IPv4bcast) == 0)
return V4;
- } else {
+ else
if(ip[0] == 0xff)
return V6;
- }
return 0;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1474,1481 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1416,1422
f = c->p->f;
for(l = &c->multi; *l; l = &(*l)->next)
- if(ipcmp(ma, (*l)->ma) == 0)
- if(ipcmp(ia, (*l)->ia) == 0)
+ if(ipcmp(ma, (*l)->ma) == 0 && ipcmp(ia, (*l)->ia) == 0)
return; /* it's already there */
multi = *l = smalloc(sizeof(*multi));
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1516,1523 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1457,1463
f = c->p->f;
for(l = &c->multi; *l; l = &(*l)->next)
- if(ipcmp(ma, (*l)->ma) == 0)
- if(ipcmp(ia, (*l)->ia) == 0)
+ if(ipcmp(ma, (*l)->ma) == 0 && ipcmp(ia, (*l)->ia) == 0)
break;
multi = *l;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1575,1588 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1515,1524
/* register the address on any network that will proxy for us */
e = &f->ipifc->conv[f->ipifc->nc];
- if(!isv4(ip)) { // V6
+ if(!isv4(ip)) /* V6 */
for(cp = f->ipifc->conv; cp < e; cp++){
- if(*cp == nil)
+ if(*cp == nil || (nifc = (Ipifc*)(*cp)->ptcl) == ifc)
continue;
- nifc = (Ipifc*)(*cp)->ptcl;
- if(nifc == ifc)
- continue;
-
rlock(nifc);
m = nifc->m;
if(m == nil || m->addmulti == nil) {
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1591,1616 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1527,1547
}
for(lifc = nifc->lifc; lifc; lifc = lifc->next){
maskip(ip, lifc->mask, net);
- if(ipcmp(net, lifc->remote) == 0) { /* add solicited-node multicast address */
+ if(ipcmp(net, lifc->remote) == 0) {
+ /* add solicited-node multicast addr */
ipv62smcast(net, ip);
addselfcache(f, nifc, lifc, net, Rmulti);
arpenter(f, V6, ip, nifc->mac, 6, 0);
- //(*m->addmulti)(nifc, net, ip);
+ // (*m->addmulti)(nifc, net, ip);
break;
}
}
runlock(nifc);
}
- return;
- }
- else { // V4
+ else /* V4 */
for(cp = f->ipifc->conv; cp < e; cp++){
- if(*cp == nil)
+ if(*cp == nil || (nifc = (Ipifc*)(*cp)->ptcl) == ifc)
continue;
- nifc = (Ipifc*)(*cp)->ptcl;
- if(nifc == ifc)
- continue;
-
rlock(nifc);
m = nifc->m;
if(m == nil || m->areg == nil){
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1626,1636 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1557,1566
}
runlock(nifc);
}
- }
}
- // added for new v6 mesg types
+ /* added for new v6 mesg types */
static void
adddefroute6(Fs *f, uchar *gate, int force)
{
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1637,1653 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1567,1584
Route *r;
r = v6lookup(f, v6Unspecified, nil);
- if(r!=nil)
- if(!(force) && (strcmp(r->tag,"ra")!=0)) // route entries generated
- return; // by all other means take
- // precedence over router annc
+ /*
+ * route entries generated by all other means take precedence
+ * over router announcements.
+ */
+ if (r && !force && strcmp(r->tag, "ra") != 0)
+ return;
v6delroute(f, v6Unspecified, v6Unspecified, 1);
v6addroute(f, "ra", v6Unspecified, v6Unspecified, gate, 0);
}
- enum
- {
+ enum {
Ngates = 3,
};
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1654,1669 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1585,1597
char*
ipifcaddpref6(Ipifc *ifc, char**argv, int argc)
{
- uchar onlink = 1;
- uchar autoflag = 1;
- long validlt = 0xffffffff;
- long preflt = 0xffffffff;
- long origint = NOW / 10^3;
- uchar prefix[IPaddrlen];
- int plen = 64;
- Iplifc *lifc;
- char addr[40], preflen[6];
- char *params[3];
+ int plen = 64;
+ long origint = NOW / 1000, preflt = ~0L, validlt = ~0L;
+ char addr[40], preflen[6];
+ char *params[3];
+ uchar autoflag = 1, onlink = 1;
+ uchar prefix[IPaddrlen];
+ Iplifc *lifc;
switch(argc) {
case 7:
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1680,1685 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1608,1614
/* fall through */
case 3:
plen = atoi(argv[2]);
+ /* fall through */
case 2:
break;
default:
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1686,1696 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1615,1622
return Ebadarg;
}
- if((parseip(prefix, argv[1])!=6) ||
- (validlt < preflt) ||
- (plen < 0) || (plen > 64) ||
- (islinklocal(prefix))
- )
+ if (parseip(prefix, argv[1]) != 6 || validlt < preflt || plen < 0 ||
+ plen > 64 || islinklocal(prefix))
return Ebadarg;
lifc = smalloc(sizeof(Iplifc));
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1700,1706 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1626,1632
lifc->preflt = preflt;
lifc->origint = origint;
- if(ifc->m->pref2addr!=nil)
+ if(ifc->m->pref2addr)
ifc->m->pref2addr(prefix, ifc->mac);
else
return Ebadarg;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipifc.c:1713,1716 -
/n/sources/plan9/sys/src/9/ip/ipifc.c:1639,1641
return ipifcadd(ifc, params, 3, 0, lifc);
}
-
[geoff] --rw-rw-r-- M 44 presotto sys 14297 Apr 18 19:13 sys/src/9/ip/ipv6.c
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:16,26 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:16,26
IP_DF = 0x4000, /* Don't fragment */
IP_MF = 0x2000, /* More fragments */
IP6FHDR = 8, /* sizeof(Fraghdr6) */
- IP_MAX = (32*1024), /* Maximum Internet packet size */
+ IP_MAX = 32*1024, /* Maximum Internet packet size */
};
- #define IPV6CLASS(hdr) ((hdr->vcf[0]&0x0F)<<2 | (hdr->vcf[1]&0xF0)>>2)
- #define BLKIPVER(xp) (((Ip6hdr*)((xp)->rp))->vcf[0]&0xF0)
+ #define IPV6CLASS(hdr) (((hdr)->vcf[0]&0x0F)<<2 | ((hdr)->vcf[1]&0xF0)>>2)
+ #define BLKIPVER(xp) (((Ip6hdr*)((xp)->rp))->vcf[0] & 0xF0)
/*
* This sleazy macro is stolen shamelessly from ip.c, see comment there.
*/
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:32,42 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:32,42
typedef struct Ipfrag Ipfrag;
Block* ip6reassemble(IP*, int, Block*, Ip6hdr*);
- void ipfragfree6(IP*, Fragment6*);
Fragment6* ipfragallo6(IP*);
- static Block* procxtns(IP *ip, Block *bp, int doreasm);
- int unfraglen(Block *bp, uchar *nexthdr, int setfh);
+ void ipfragfree6(IP*, Fragment6*);
Block* procopts(Block *bp);
+ static Block* procxtns(IP *ip, Block *bp, int doreasm);
+ int unfraglen(Block *bp, uchar *nexthdr, int setfh);
/* MIB II counters */
enum
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:134,149 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:134,148
int
ipoput6(Fs *f, Block *bp, int gating, int ttl, int tos, Conv *c)
{
- int tentative;
- Ipifc *ifc;
+ int medialen, len, chunk, uflen, flen, seglen, lid, offset, fragoff;
+ int morefrags, blklen, rv = 0, tentative;
uchar *gate, nexthdr;
- Ip6hdr *eh;
- int medialen, len, chunk, uflen, flen, seglen, lid, offset, fragoff, morefrags, blklen;
- Route *r, *sr;
- Fraghdr6 fraghdr;
Block *xp, *nb;
+ Fraghdr6 fraghdr;
IP *ip;
- int rv = 0;
+ Ip6hdr *eh;
+ Ipifc *ifc;
+ Route *r, *sr;
ip = f->ip;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:154,160 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:153,159
/* Number of uchars in data and ip header to write */
len = blocklen(bp);
-
+
tentative = iptentative(f, eh->src);
if(tentative){
netlog(f, Logip, "reject tx of packet with tentative src address\n");
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:191,204 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:190,201
ifc = r->ifc;
if(r->type & (Rifc|Runi))
gate = eh->dst;
- else
- if(r->type & (Rbcast|Rmulti)) {
+ else if(r->type & (Rbcast|Rmulti)) {
gate = eh->dst;
sr = v6lookup(f, eh->src, nil);
- if(sr != nil && (sr->type & Runi))
+ if(sr && (sr->type & Runi))
ifc = sr->ifc;
- }
- else
+ } else
gate = r->v6.gate;
if(!gating)
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:205,217 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:202,213
eh->vcf[0] = IP_VER6;
eh->ttl = ttl;
if(!gating) {
- eh->vcf[0] |= (tos >> 4);
- eh->vcf[1] = (tos << 4);
+ eh->vcf[0] |= tos >> 4;
+ eh->vcf[1] = tos << 4;
}
- if(!canrlock(ifc)) {
+ if(!canrlock(ifc))
goto free;
- }
if(waserror()){
runlock(ifc);
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:218,226 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:214,221
nexterror();
}
- if(ifc->m == nil) {
+ if(ifc->m == nil)
goto raise;
- }
/* If we dont need to fragment just send it */
medialen = ifc->maxtu - ifc->m->hsize;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:232,251 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:227,244
return 0;
}
- if(gating)
- if(ifc->reassemble <= 0) {
-
- /* v6 intermediate nodes are not supposed to fragment pkts;
- we fragment if ifc->reassemble is turned on; an exception
- needed for nat.
+ if(gating && ifc->reassemble <= 0) {
+ /*
+ * v6 intermediate nodes are not supposed to fragment pkts;
+ * we fragment if ifc->reassemble is turned on; an exception
+ * needed for nat.
*/
-
ip->stats[OutDiscards]++;
icmppkttoobig6(f, ifc, bp);
netlog(f, Logip, "%I: gated pkts not fragmented\n", eh->dst);
goto raise;
}
-
+
/* start v6 fragmentation */
uflen = unfraglen(bp, &nexthdr, 1);
if(uflen > medialen) {
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:271,283 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:264,276
xp = bp;
offset = uflen;
- while (xp != nil && offset && offset >= BLEN(xp)) {
+ while (xp && offset && offset >= BLEN(xp)) {
offset -= BLEN(xp);
xp = xp->next;
}
xp->rp += offset;
- fragoff = 0;
+ fragoff = 0;
morefrags = 1;
for(; fragoff < flen; fragoff += seglen) {
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:292,298 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:285,291
memmove(nb->wp, eh, uflen);
nb->wp += uflen;
- hnputs(fraghdr.offsetRM, fragoff); // last 3 bits must be 0
+ hnputs(fraghdr.offsetRM, fragoff); /* last 3 bits must be 0 */
fraghdr.offsetRM[1] |= morefrags;
memmove(nb->wp, &fraghdr, IP6FHDR);
nb->wp += IP6FHDR;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:316,322 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:309,315
xp->rp += blklen;
chunk -= blklen;
if(xp->rp == xp->wp)
- xp = xp->next;
+ xp = xp->next;
}
ifc->m->bwrite(ifc, nb, V6, gate);
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:328,334 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:321,327
runlock(ifc);
poperror();
free:
- freeblist(bp);
+ freeblist(bp);
return rv;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:335,349 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:328,339
void
ipiput6(Fs *f, Ipifc *ifc, Block *bp)
{
- int hl;
- int hop, tos;
+ int hl, hop, tos, notforme, tentative;
uchar proto;
- Ip6hdr *h;
- Proto *p;
- int notforme;
- int tentative;
uchar v6dst[IPaddrlen];
IP *ip;
+ Ip6hdr *h;
+ Proto *p;
Route *r, *sr;
ip = f->ip;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:365,377 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:355,367
return;
}
- h = (Ip6hdr *)(bp->rp);
+ h = (Ip6hdr *)bp->rp;
- memmove(&v6dst[0], &(h->dst)[0], IPaddrlen);
+ memmove(&v6dst[0], &h->dst[0], IPaddrlen);
notforme = ipforme(f, v6dst) == 0;
tentative = iptentative(f, v6dst);
-
- if(tentative && (h->proto != ICMPv6)) {
+
+ if(tentative && h->proto != ICMPv6) {
print("tentative addr, drop\n");
freeblist(bp);
return;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:393,399 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:383,389
}
/* don't forward to source's network */
sr = v6lookup(f, h->src, nil);
- r = v6lookup(f, h->dst, nil);
+ r = v6lookup(f, h->dst, nil);
if(r == nil || sr == r){
ip->stats[OutDiscards]++;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:412,423 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:402,412
/* process headers & reassemble if the interface expects it */
bp = procxtns(ip, bp, r->ifc->reassemble);
-
if(bp == nil)
return;
ip->stats[ForwDatagrams]++;
- h = (Ip6hdr *) (bp->rp);
+ h = (Ip6hdr *)bp->rp;
tos = IPV6CLASS(h);
hop = h->ttl;
ipoput6(f, bp, 1, hop-1, tos, nil);
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:426,432 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:415,420
/* reassemble & process headers if needed */
bp = procxtns(ip, bp, 1);
-
if(bp == nil)
return;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:433,439 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:421,427
h = (Ip6hdr *) (bp->rp);
proto = h->proto;
p = Fsrcvpcol(f, proto);
- if(p != nil && p->rcv != nil) {
+ if(p && p->rcv) {
ip->stats[InDelivers]++;
(*p->rcv)(p, ifc, bp);
return;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:470,476 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:458,463
frag->next = ip->fragfree6;
ip->fragfree6 = frag;
-
}
/*
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:497,529 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:484,515
}
static Block*
- procxtns(IP *ip, Block *bp, int doreasm) {
-
+ procxtns(IP *ip, Block *bp, int doreasm)
+ {
int offset;
uchar proto;
Ip6hdr *h;
- h = (Ip6hdr *) (bp->rp);
+ h = (Ip6hdr *)bp->rp;
offset = unfraglen(bp, &proto, 0);
- if((proto == FH) && (doreasm != 0)) {
+ if(proto == FH && doreasm != 0) {
bp = ip6reassemble(ip, offset, bp, h);
- if(bp == nil)
- return nil;
+ if(bp == nil)
+ return nil;
offset = unfraglen(bp, &proto, 0);
}
- if(proto == DOH || offset > IP6HDR)
+ if(proto == DOH || offset > IP6HDR)
bp = procopts(bp);
-
return bp;
}
-
- /* returns length of "Unfragmentable part", i.e., sum of lengths of ipv6 hdr,
- * hop-by-hop & routing headers if present; *nexthdr is set to nexthdr value
- * of the last header in the "Unfragmentable part"; if setfh != 0, nexthdr
- * field of the last header in the "Unfragmentable part" is set to FH.
+ /*
+ * returns length of "Unfragmentable part", i.e., sum of lengths of ipv6 hdr,
+ * hop-by-hop & routing headers if present; *nexthdr is set to nexthdr value
+ * of the last header in the "Unfragmentable part"; if setfh != 0, nexthdr
+ * field of the last header in the "Unfragmentable part" is set to FH.
*/
int
unfraglen(Block *bp, uchar *nexthdr, int setfh)
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:532,543 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:518,529
int ufl, hs;
p = bp->rp;
- q = p+6; /* proto, = p+sizeof(Ip6hdr.vcf)+sizeof(Ip6hdr.ploadlen) */
+ q = p+6; /* proto, = p+sizeof(Ip6hdr.vcf)+sizeof(Ip6hdr.ploadlen) */
*nexthdr = *q;
ufl = IP6HDR;
p += ufl;
- for(;;) {
+ for(;;)
if(*nexthdr == HBH || *nexthdr == RH) {
*nexthdr = *p;
hs = ((int)*(p+1) + 1) * 8;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:544,560 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:530,542
ufl += hs;
q = p;
p += hs;
- }
- else
+ } else
break;
- }
if(*nexthdr == FH)
*q = *p;
-
if(setfh)
*q = FH;
-
return ufl;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:567,582 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:549,562
Block*
ip6reassemble(IP* ip, int uflen, Block* bp, Ip6hdr* ih)
{
-
- int fend, offset;
+ int fend, offset, ovlap, len, fragsize, pktposn;
uint id;
- Fragment6 *f, *fnext;
- Fraghdr6 *fraghdr;
uchar src[IPaddrlen], dst[IPaddrlen];
Block *bl, **l, *last, *prev;
- int ovlap, len, fragsize, pktposn;
+ Fraghdr6 *fraghdr;
+ Fragment6 *f, *fnext;
- fraghdr = (Fraghdr6 *) (bp->rp + uflen);
+ fraghdr = (Fraghdr6 *)(bp->rp + uflen);
memmove(src, ih->src, IPaddrlen);
memmove(dst, ih->dst, IPaddrlen);
id = nhgetl(fraghdr->id);
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:587,596 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:567,575
*/
if(bp->next){
bp = pullupblock(bp, blocklen(bp));
- ih = (Ip6hdr *)(bp->rp);
+ ih = (Ip6hdr *)bp->rp;
}
-
qlock(&ip->fraglock6);
/*
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:606,619 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:585,597
}
}
-
/*
* if this isn't a fragmented packet, accept it
* and get rid of any fragments that might go
* with it.
*/
- if(nhgets(fraghdr->offsetRM)==0) { // first frag is also the last
- if(f != nil) {
+ if(nhgets(fraghdr->offsetRM) == 0) { /* 1st frag is also last */
+ if(f) {
ipfragfree6(ip, f);
ip->stats[ReasmFails]++;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:678,689 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:656,665
fend = BKFG(bp)->foff + BKFG(bp)->flen;
/* Take completely covered segments out */
-
while(*l) {
ovlap = fend - BKFG(*l)->foff;
-
- if(ovlap <= 0)
- break;
+ if(ovlap <= 0)
+ break;
if(ovlap < BKFG(*l)->flen) {
BKFG(*l)->flen -= ovlap;
BKFG(*l)->foff += ovlap;
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:704,726 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:680,697
* with the trailing bit of fraghdr->offsetRM[1] set, we're done.
*/
pktposn = 0;
- for(bl = f->blist; bl; bl = bl->next) {
- if(BKFG(bl)->foff != pktposn)
- break;
-
- fraghdr = (Fraghdr6 *) (bl->rp + uflen);
+ for(bl = f->blist; bl && BKFG(bl)->foff == pktposn; bl = bl->next) {
+ fraghdr = (Fraghdr6 *)(bl->rp + uflen);
if((fraghdr->offsetRM[1] & 1) == 0) {
-
bl = f->blist;
/* get rid of frag header in first fragment */
-
memmove(bl->rp + IP6FHDR, bl->rp, uflen);
bl->rp += IP6FHDR;
- len = nhgets(((Ip6hdr*)(bl->rp))->ploadlen) - IP6FHDR;
+ len = nhgets(((Ip6hdr*)bl->rp)->ploadlen) - IP6FHDR;
bl->wp = bl->rp + len + IP6HDR;
-
- /* Pullup all the fragment headers and
+ /*
+ * Pullup all the fragment headers and
* return a complete packet
*/
for(bl = bl->next; bl; bl = bl->next) {
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:733,743 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:704,714
bl = f->blist;
f->blist = nil;
ipfragfree6(ip, f);
- ih = (Ip6hdr*)(bl->rp);
+ ih = (Ip6hdr*)bl->rp;
hnputs(ih->ploadlen, len);
qunlock(&ip->fraglock6);
ip->stats[ReasmOKs]++;
- return bl;
+ return bl;
}
pktposn += BKFG(bl)->flen;
}
/n/sourcesdump/2007/0418/plan9/sys/src/9/ip/ipv6.c:744,747 -
/n/sources/plan9/sys/src/9/ip/ipv6.c:715,717
qunlock(&ip->fraglock6);
return nil;
}
-
|
