## diffname ip/ipaux.c 1997/0327
## diff -e /dev/null /n/emeliedump/1997/0327/sys/src/brazil/ip/ipaux.c
0a
#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "../port/error.h"
#include "kernel.h"
#include "ip.h"
static short endian = 1;
static byte* aendian = (byte*)&endian;
#define LITTLE *aendian
ushort
ptclbsum(byte *addr, int len)
{
ulong losum, hisum, mdsum, x;
ulong t1, t2;
losum = 0;
hisum = 0;
mdsum = 0;
x = 0;
if((ulong)addr & 1) {
if(len) {
hisum += addr[0];
len--;
addr++;
}
x = 1;
}
while(len >= 16) {
t1 = *(ushort*)(addr+0);
t2 = *(ushort*)(addr+2); mdsum += t1;
t1 = *(ushort*)(addr+4); mdsum += t2;
t2 = *(ushort*)(addr+6); mdsum += t1;
t1 = *(ushort*)(addr+8); mdsum += t2;
t2 = *(ushort*)(addr+10); mdsum += t1;
t1 = *(ushort*)(addr+12); mdsum += t2;
t2 = *(ushort*)(addr+14); mdsum += t1;
mdsum += t2;
len -= 16;
addr += 16;
}
while(len >= 2) {
mdsum += *(ushort*)addr;
len -= 2;
addr += 2;
}
if(x) {
if(len)
losum += addr[0];
if(LITTLE)
losum += mdsum;
else
hisum += mdsum;
} else {
if(len)
hisum += addr[0];
if(LITTLE)
hisum += mdsum;
else
losum += mdsum;
}
losum += hisum >> 8;
losum += (hisum & 0xff) << 8;
while(hisum = losum>>16)
losum = hisum + (losum & 0xffff);
return losum & 0xffff;
}
ushort
ptclcsum(Block *bp, int offset, int len)
{
byte *addr;
ulong losum, hisum;
ushort csum;
int odd, blocklen, x;
/* Correct to front of data area */
while(bp != nil && offset && offset >= BLEN(bp)) {
offset -= BLEN(bp);
bp = bp->next;
}
if(bp == nil)
return 0;
addr = bp->rp + offset;
blocklen = BLEN(bp) - offset;
if(bp->next == nil) {
if(blocklen < len)
len = blocklen;
return ~ptclbsum(addr, len) & 0xffff;
}
losum = 0;
hisum = 0;
odd = 0;
while(len) {
x = blocklen;
if(len < x)
x = len;
csum = ptclbsum(addr, x);
if(odd)
hisum += csum;
else
losum += csum;
odd = (odd+x) & 1;
len -= x;
bp = bp->next;
if(bp == nil)
break;
blocklen = BLEN(bp);
addr = bp->rp;
}
losum += hisum>>8;
losum += (hisum&0xff)<<8;
while((csum = losum>>16) != 0)
losum = csum + (losum & 0xffff);
return ~losum & 0xffff;
}
Ipaddr
defmask(Ipaddr ip)
{
switch(ip>>30){
default:
return 0xff000000;
case 2:
return 0xffff0000;
case 3:
return 0xffffff00;
}
}
int
myetheraddr(uchar *to, char *dev)
{
int n, fd;
char buf[256], *ptr;
/* Make one exist */
if(*dev == '/' || *dev == '#')
sprint(buf, "%s/clone", dev);
else
sprint(buf, "/net/%s/clone", dev);
fd = kopen(buf, ORDWR);
if(fd >= 0)
kclose(fd);
if(*dev == '/' || *dev == '#')
sprint(buf, "%s/0/stats", dev);
else
sprint(buf, "/net/%s/0/stats", dev);
fd = kopen(buf, OREAD);
if(fd < 0)
return -1;
n = kread(fd, buf, sizeof(buf)-1);
kclose(fd);
if(n <= 0)
return -1;
buf[n] = 0;
ptr = strstr(buf, "addr: ");
if(!ptr)
return -1;
ptr += 6;
parseether(to, ptr);
return 0;
}
int
eipconv(va_list *arg, Fconv *f)
{
char buf[64];
static char *efmt = "%.2lux%.2lux%.2lux%.2lux%.2lux%.2lux";
static char *ifmt = "%d.%d.%d.%d";
uchar *p, ip[4];
switch(f->chr) {
case 'E': /* Ethernet address */
p = va_arg(*arg, uchar*);
sprint(buf, efmt, p[0], p[1], p[2], p[3], p[4], p[5]);
break;
case 'I': /* Ip address */
p = va_arg(*arg, uchar*);
sprint(buf, ifmt, p[0], p[1], p[2], p[3]);
break;
case 'i':
hnputl(ip, va_arg(*arg, ulong));
sprint(buf, ifmt, ip[0], ip[1], ip[2], ip[3]);
break;
default:
strcpy(buf, "(eipconv)");
}
strconv(buf, f);
return sizeof(uchar*);
}
#define CLASS(p) ((*(uchar*)(p))>>6)
ulong
parseip(char *to, char *from)
{
int i;
char *p;
p = from;
memset(to, 0, 4);
for(i = 0; i < 4 && *p; i++){
to[i] = strtoul(p, &p, 0);
if(*p == '.')
p++;
}
switch(CLASS(to)){
case 0: /* class A - 1 byte net */
case 1:
if(i == 3){
to[3] = to[2];
to[2] = to[1];
to[1] = 0;
} else if (i == 2){
to[3] = to[1];
to[1] = 0;
}
break;
case 2: /* class B - 2 byte net */
if(i == 3){
to[3] = to[2];
to[2] = 0;
}
break;
}
return nhgetl((uchar*)to);
}
.
## diffname ip/ipaux.c 1997/0423
## diff -e /n/emeliedump/1997/0327/sys/src/brazil/ip/ipaux.c /n/emeliedump/1997/0423/sys/src/brazil/ip/ipaux.c
246c
return nhgetl(to);
.
215c
parseip(uchar *to, char *from)
.
## diffname ip/ipaux.c 1997/0926
## diff -e /n/emeliedump/1997/0423/sys/src/brazil/ip/ipaux.c /n/emeliedump/1997/0926/sys/src/brazil/ip/ipaux.c
10,74d
## diffname ip/ipaux.c 1998/0306
## diff -e /n/emeliedump/1997/0926/sys/src/brazil/ip/ipaux.c /n/emeliedump/1998/0306/sys/src/brazil/ip/ipaux.c
181c
return p;
}
int
isv4(uchar *ip)
{
return memcmp(ip, v4prefix, IPv4off) == 0;
}
void
v4tov6(uchar *v6, uchar *v4)
{
memmove(v6, v4prefix, IPv4off);
memmove(v6 + IPv4off, v4, IPv4addrlen);
}
int
v6tov4(uchar *v4, uchar *v6)
{
if(memcmp(v6, v4prefix, IPv4off) != 0)
return -1;
memmove(v4, v6 + IPv4off, IPv4addrlen);
return 0;
}
ulong
parseip(uchar *to, char *from)
{
int i, elipsis = 0, v4 = 1;
ulong x;
char *p, *op;
memset(to, 0, IPaddrlen);
p = from;
for(i = 0; i < 16 && *p; i+=2){
op = p;
x = strtoul(p, &p, 16);
if(*p == '.' || (*p == 0 && i == 0)){
p = v4parseip(to+i, op);
i += 2;
} else {
to[i] = x>>8;
to[i+1] = x;
}
if(*p == ':'){
v4 = 0;
if(*++p == ':'){
elipsis = i+2;
p++;
}
}
}
if(i < 16){
memmove(&to[elipsis+16-i], &to[elipsis], i-elipsis);
memset(&to[elipsis], 0, 16-i);
}
if(v4){
to[10] = to[11] = 0xff;
return nhgetl(to+12);
} else
return 6;
}
/*
* hack to allow ip v4 masks to be entered in the old
* style
*/
ulong
parseipmask(uchar *to, char *from)
{
ulong x;
int i;
uchar *p;
if(*from == '/'){
/* as a number of prefix bits */
i = atoi(from+1);
if(i < 0)
i = 0;
if(i > 128)
i = 128;
memset(to, 0, IPaddrlen);
for(p = to; i >= 8; i -= 8)
*p++ = 0xff;
if(i > 0)
*p = ~((1<<(8-i))-1);
x = nhgetl(to+IPv4off);
} else {
/* as a straight bit mask */
x = parseip(to, from);
if(memcmp(to, v4prefix, IPv4off) == 0)
memset(to, 0xff, IPv4off);
}
return x;
}
void
maskip(uchar *from, uchar *mask, uchar *to)
{
int i;
for(i = 0; i < IPaddrlen; i++)
to[i] = from[i] & mask[i];
}
uchar classmask[4][16] = {
0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff, 0xff,0x00,0x00,0x00,
0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff, 0xff,0x00,0x00,0x00,
0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff, 0xff,0xff,0x00,0x00,
0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0x00,
};
uchar*
defmask(uchar *ip)
{
return classmask[ip[IPv4off]>>6];
}
/*
* parse a command written to a device
*/
Cmdbuf*
parsecmd(char *p, int n)
{
Cmdbuf *cb;
cb = smalloc(sizeof(*cb));
if(n > sizeof(cb->buf)-1)
n = sizeof(cb->buf)-1;
memmove(cb->buf, p, n);
cb->buf[n] = '\0';
cb->nf = parsefields(cb->buf, cb->f, nelem(cb->f), " ");
return cb;
}
/*
* parse a hex mac address
*/
int
parsemac(uchar *to, char *from, int len)
{
char nip[4];
char *p;
int i;
p = from;
memset(to, 0, len);
for(i = 0; i < len; i++){
if(*p == 0)
return -1;
nip[0] = *p++;
if(*p == 0)
return -1;
nip[1] = *p++;
nip[2] = 0;
to[i] = strtoul(nip, 0, 16);
if(*p == ':')
p++;
}
return 0;
.
174c
case 2: /* class B - 2 uchar net */
.
163c
case 0: /* class A - 1 uchar net */
.
156d
149,150c
static char*
v4parseip(uchar *to, char *from)
.
136,138c
case 'M': /* ip mask */
p = va_arg(*arg, uchar*);
/* look for a prefix mask */
for(i = 0; i < 16; i++)
if(p[i] != 0xff)
break;
if(i < 16){
if((prefixvals[p[i]] & Isprefix) == 0)
goto common;
for(j = i+1; j < 16; j++)
if(p[j] != 0)
goto common;
n = 8*i + (prefixvals[p[i]] & ~Isprefix);
} else
n = 8*16;
/* got one, use /xx format */
sprint(buf, "/%d", n);
.
133a
common:
if(memcmp(p, v4prefix, 12) == 0)
sprint(buf, ifmt, p[12], p[13], p[14], p[15]);
else {
/* find longest elision */
eln = eli = -1;
for(i = 0; i < 16; i += 2){
for(j = i; j < 16; j += 2)
if(p[j] != 0 || p[j+1] != 0)
break;
if(j > i && j - i > eln){
eli = i;
eln = j - i;
}
}
/* print with possible elision */
n = 0;
for(i = 0; i < 16; i += 2){
if(i == eli){
n += sprint(buf+n, "::");
i += eln;
if(i >= 16)
break;
} else if(i != 0)
n += sprint(buf+n, ":");
s = (p[i]<<8) + p[i+1];
n += sprint(buf+n, "%ux", s);
}
}
break;
case 'i': /* v6 address as 4 longs */
lp = va_arg(*arg, ulong*);
for(i = 0; i < 4; i++)
hnputl(ip+4*i, *lp++);
p = ip;
goto common;
case 'V': /* v4 ip address */
p = va_arg(*arg, uchar*);
.
125c
uchar *p, ip[16];
ulong *lp;
ushort s;
int i, j, n, eln, eli;
.
122c
char buf[8*5];
.
86,118d
83,84c
[0x00] 0 | Isprefix,
[0x80] 1 | Isprefix,
[0xC0] 2 | Isprefix,
[0xE0] 3 | Isprefix,
[0xF0] 4 | Isprefix,
[0xF8] 5 | Isprefix,
[0xFC] 6 | Isprefix,
[0xFE] 7 | Isprefix,
[0xFF] 8 | Isprefix,
};
.
80,81c
uchar prefixvals[256] =
.
70,78c
Isprefix= 16,
};
.
67,68c
enum
.
13c
uchar *addr;
.
9a
/*
* well known IP addresses
*/
uchar IPv4bcast[IPaddrlen] = {
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff
};
uchar IPv4allsys[IPaddrlen] = {
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0xff, 0xff,
0xe0, 0, 0, 0x01
};
uchar IPv4allrouter[IPaddrlen] = {
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0xff, 0xff,
0xe0, 0, 0, 0x02
};
uchar IPallbits[IPaddrlen] = {
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff
};
uchar IPnoaddr[IPaddrlen];
/*
* prefix of all v4 addresses
*/
uchar v4prefix[IPaddrlen] = {
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0xff, 0xff,
0, 0, 0, 0
};
.
## diffname ip/ipaux.c 1998/0313
## diff -e /n/emeliedump/1998/0306/sys/src/brazil/ip/ipaux.c /n/emeliedump/1998/0313/sys/src/brazil/ip/ipaux.c
374a
if(n > 0 && cb->buf[n-1] == '\n')
n--;
.
## diffname ip/ipaux.c 1998/0320
## diff -e /n/emeliedump/1998/0313/sys/src/brazil/ip/ipaux.c /n/emeliedump/1998/0320/sys/src/brazil/ip/ipaux.c
283c
i += 4;
break;
.
## diffname ip/ipaux.c 1998/0328
## diff -e /n/emeliedump/1998/0320/sys/src/brazil/ip/ipaux.c /n/emeliedump/1998/0328/sys/src/brazil/ip/ipaux.c
213c
extern char*
.
## diffname ip/ipaux.c 1998/0630
## diff -e /n/emeliedump/1998/0328/sys/src/brazil/ip/ipaux.c /n/emeliedump/1998/0630/sys/src/brazil/ip/ipaux.c
407c
return i;
.
396,402c
if(p[0] == '\0' || p[1] == '\0')
break;
nip[0] = p[0];
nip[1] = p[1];
nip[2] = '\0';
p += 2;
.
384c
* parse a hex mac address
.
## diffname ip/ipaux.c 1999/0316
## diff -e /n/emeliedump/1998/0630/sys/src/brazil/ip/ipaux.c /n/emeliedump/1999/0316/sys/src/brazil/ip/ipaux.c
364,383d
## diffname ip/ipaux.c 1999/0523
## diff -e /n/emeliedump/1999/0316/sys/src/brazil/ip/ipaux.c /n/emeliedump/1999/0523/sys/src/brazil/ip/ipaux.c
264a
}
.
263c
if(memcmp(v6, v4prefix, IPv4off) != 0){
memset(v4, 0, 4);
.
## diffname ip/ipaux.c 1999/1109
## diff -e /n/emeliedump/1999/0523/sys/src/brazil/ip/ipaux.c /n/emeliedump/1999/1109/sys/src/9/ip/ipaux.c
112c
static uchar prefixvals[256] =
.
## diffname ip/ipaux.c 2000/1111
## diff -e /n/emeliedump/1999/1109/sys/src/9/ip/ipaux.c /n/emeliedump/2000/1111/sys/src/9/ip/ipaux.c
7d
## diffname ip/ipaux.c 2001/0127
## diff -e /n/emeliedump/2000/1111/sys/src/9/ip/ipaux.c /n/emeliedump/2001/0127/sys/src/9/ip/ipaux.c
255,256c
v6[0] = *(ulong)v4prefix;
v6[1] = *(ulong)(v4prefix+4);
v6[2] = *(ulong)(v4prefix+8);
v6[3] = *(ulong)v4;
.
## diffname ip/ipaux.c 2001/0128
## diff -e /n/emeliedump/2001/0127/sys/src/9/ip/ipaux.c /n/emeliedump/2001/0128/sys/src/9/ip/ipaux.c
255,258c
// memmove(v6, v4prefix, IPv4off);
// memmove(v6 + IPv4off, v4, IPv4addrlen);
*(ulong*)v6 = *(ulong*)v4prefix;
*(ulong*)(v6+4) = *(ulong*)(v4prefix+4);
*(ulong*)(v6+8) = *(ulong*)(v4prefix+8);
*(ulong*)(v6+12) = *(ulong*)v4;
.
## diffname ip/ipaux.c 2001/0301
## diff -e /n/emeliedump/2001/0128/sys/src/9/ip/ipaux.c /n/emeliedump/2001/0301/sys/src/9/ip/ipaux.c
393a
}
/*
* hashing tcp, udp, ... connections
*/
ulong
iphash(uchar *sa, ushort sp, uchar *da, ushort dp)
{
return ((sa[IPaddrlen-1]<<24) ^ (sp << 16) ^ (da[IPaddrlen-1]<<8) ^ dp ) % Nhash;
}
void
iphtadd(Ipht *ht, Conv *c)
{
ulong hv;
Iphash *h;
hv = iphash(c->raddr, c->rport, c->laddr, c->lport);
h = smalloc(sizeof(*h));
if(ipcmp(c->raddr, IPnoaddr) != 0)
h->match = IPmatchexact;
else {
if(ipcmp(c->laddr, IPnoaddr) != 0){
if(c->lport == 0)
h->match = IPmatchaddr;
else
h->match = IPmatchpa;
} else {
if(c->lport == 0)
h->match = IPmatchany;
else
h->match = IPmatchport;
}
}
h->c = c;
lock(ht);
h->next = ht->tab[hv];
ht->tab[hv] = h;
unlock(ht);
}
void
iphtrem(Ipht *ht, Conv *c)
{
ulong hv;
Iphash **l, *h;
hv = iphash(c->raddr, c->rport, c->laddr, c->lport);
lock(ht);
for(l = &ht->tab[hv]; (*l) != nil; l = &(*l)->next)
if((*l)->c == c){
h = *l;
(*l) = h->next;
free(h);
break;
}
unlock(ht);
}
/* look for a matching conversation with the following precedence
* connected && raddr,rport,laddr,lport
* announced && laddr,lport
* announced && *,lport
* announced && laddr,*
* announced && *,*
*/
Conv*
iphtlook(Ipht *ht, uchar *sa, ushort sp, uchar *da, ushort dp)
{
ulong hv;
Iphash *h;
Conv *c;
/* exact 4 pair match (connection) */
hv = iphash(sa, sp, da, dp);
lock(ht);
for(h = ht->tab[hv]; h != nil; h = h->next){
if(h->match != IPmatchexact)
continue;
c = h->c;
if(sp == c->rport && dp == c->lport
&& ipcmp(sa, c->raddr) == 0 && ipcmp(da, c->laddr) == 0){
unlock(ht);
return c;
}
}
/* match local address and port */
hv = iphash(IPnoaddr, 0, da, dp);
for(h = ht->tab[hv]; h != nil; h = h->next){
if(h->match != IPmatchpa)
continue;
c = h->c;
if(dp == c->lport && ipcmp(da, c->laddr) == 0){
unlock(ht);
return c;
}
}
/* match just port */
hv = iphash(IPnoaddr, 0, IPnoaddr, dp);
for(h = ht->tab[hv]; h != nil; h = h->next){
if(h->match != IPmatchport)
continue;
c = h->c;
if(dp == c->lport){
unlock(ht);
return c;
}
}
/* match local address */
hv = iphash(IPnoaddr, 0, da, 0);
for(h = ht->tab[hv]; h != nil; h = h->next){
if(h->match != IPmatchaddr)
continue;
c = h->c;
if(ipcmp(da, c->laddr) == 0){
unlock(ht);
return c;
}
}
/* look for something that matches anything */
hv = iphash(IPnoaddr, 0, IPnoaddr, 0);
for(h = ht->tab[hv]; h != nil; h = h->next){
if(h->match != IPmatchany)
continue;
c = h->c;
unlock(ht);
return c;
}
unlock(ht);
return nil;
.
255,260c
if((((ulong)v6) & 0x3) != 0 || (((ulong)v4) & 0x3) != 0){
memmove(v6, v4prefix, IPv4off);
memmove(v6 + IPv4off, v4, IPv4addrlen);
} else {
*(ulong*)v6 = *(ulong*)v4prefix;
*(ulong*)(v6+4) = *(ulong*)(v4prefix+4);
*(ulong*)(v6+8) = *(ulong*)(v4prefix+8);
*(ulong*)(v6+12) = *(ulong*)v4;
}
.
251a
/*
* since we call v4tov6 so often (per packet in), avoiding the memmove's is
* useful. However, we need to check allignment for processors
* without unalligned moves.
*/
.
## diffname ip/ipaux.c 2001/0302
## diff -e /n/emeliedump/2001/0301/sys/src/9/ip/ipaux.c /n/emeliedump/2001/0302/sys/src/9/ip/ipaux.c
436a
.
278,279d
274c
if(v6[0] == 0
&& v6[1] == 0
&& v6[2] == 0
&& v6[3] == 0
&& v6[4] == 0
&& v6[5] == 0
&& v6[6] == 0
&& v6[7] == 0
&& v6[8] == 0
&& v6[9] == 0
&& v6[10] == 0xff
&& v6[11] == 0xff)
{
v4[0] = v6[12];
v4[1] = v6[13];
v4[2] = v6[14];
v4[3] = v6[15];
return 0;
} else {
.
260,268c
v6[0] = 0;
v6[1] = 0;
v6[2] = 0;
v6[3] = 0;
v6[4] = 0;
v6[5] = 0;
v6[6] = 0;
v6[7] = 0;
v6[8] = 0;
v6[9] = 0;
v6[10] = 0xff;
v6[11] = 0xff;
v6[12] = v4[0];
v6[13] = v4[1];
v6[14] = v4[2];
v6[15] = v4[3];
.
252,255c
/*
* the following routines are unrolled with no memset's to speed
* up the usual case
.
## diffname ip/ipaux.c 2002/0217
## diff -e /n/emeliedump/2001/0302/sys/src/9/ip/ipaux.c /n/emeliedump/2002/0217/sys/src/9/ip/ipaux.c
206,207c
return fmtit(f, "(eipfmt)");
.
201,204c
return fmtit(f, "/%d", n);
.
184c
p = va_arg(f->args, uchar*);
.
180,182c
p = va_arg(f->args, uchar*);
return fmtit(f, ifmt, p[0], p[1], p[2], p[3]);
.
178a
.
174c
lp = va_arg(f->args, ulong*);
.
172c
/* print with possible elision */
n = 0;
for(i = 0; i < 16; i += 2){
if(i == eli){
n += sprint(buf+n, "::");
i += eln;
if(i >= 16)
break;
} else if(i != 0)
n += sprint(buf+n, ":");
s = (p[i]<<8) + p[i+1];
n += sprint(buf+n, "%ux", s);
}
return fmtstrcpy(f, buf);
.
158,169c
/* find longest elision */
eln = eli = -1;
for(i = 0; i < 16; i += 2){
for(j = i; j < 16; j += 2)
if(p[j] != 0 || p[j+1] != 0)
break;
if(j > i && j - i > eln){
eli = i;
eln = j - i;
.
144,156c
return fmtit(f, ifmt, p[12], p[13], p[14], p[15]);
.
141c
p = va_arg(f->args, uchar*);
.
137,139c
p = va_arg(f->args, uchar*);
return fmtit(f, efmt, p[0], p[1], p[2], p[3], p[4], p[5]);
.
135c
switch(f->r) {
.
127c
char buf[5*8];
.
125c
eipfmt(Fmt *f)
.
## diffname ip/ipaux.c 2002/0218
## diff -e /n/emeliedump/2002/0217/sys/src/9/ip/ipaux.c /n/emeliedump/2002/0218/sys/src/9/ip/ipaux.c
205c
return fmtprint(f, "(eipfmt)");
.
202c
return fmtprint(f, "/%d", n);
.
182c
return fmtprint(f, ifmt, p[0], p[1], p[2], p[3]);
.
144c
return fmtprint(f, ifmt, p[12], p[13], p[14], p[15]);
.
138c
return fmtprint(f, efmt, p[0], p[1], p[2], p[3], p[4], p[5]);
.
## diffname ip/ipaux.c 2002/0221
## diff -e /n/emeliedump/2002/0218/sys/src/9/ip/ipaux.c /n/emeliedump/2002/0221/sys/src/9/ip/ipaux.c
205c
return fmtstrcpy(f, "(eipfmt)");
.
202,203c
snprint(buf, sizeof buf, "/%d", n);
return fmtstrcpy(f, buf);
.
182c
snprint(buf, sizeof buf, ifmt, p[0], p[1], p[2], p[3]);
return fmtstrcpy(f, buf);
.
143,144c
if(memcmp(p, v4prefix, 12) == 0){
snprint(buf, sizeof buf, ifmt, p[12], p[13], p[14], p[15]);
return fmtstrcpy(f, buf);
}
.
138c
snprint(buf, sizeof buf, efmt, p[0], p[1], p[2], p[3], p[4], p[5]);
return fmtstrcpy(f, buf);
.
## diffname ip/ipaux.c 2002/0507
## diff -e /n/emeliedump/2002/0221/sys/src/9/ip/ipaux.c /n/emeliedump/2002/0507/sys/src/9/ip/ipaux.c
399a
void
ipv62smcast(uchar *smcast, uchar *a)
{
assert(IPaddrlen == 16);
memmove(smcast, v6solicitednode, IPaddrlen);
smcast[13] = a[13];
smcast[14] = a[14];
smcast[15] = a[15];
}
.
398c
if(isv4(ip))
return classmask[ip[IPv4off]>>6];
else {
if(ipcmp(ip, v6loopback) == 0)
return IPallbits;
else if(memcmp(ip, v6linklocal, v6linklocalprefix) == 0)
return v6linklocalmask;
else if(memcmp(ip, v6sitelocal, v6sitelocalprefix) == 0)
return v6sitelocalmask;
else if(memcmp(ip, v6solicitednode, v6solicitednodeprefix) == 0)
return v6solicitednodemask;
else if(memcmp(ip, v6multicast, v6multicastprefix) == 0)
return v6multicastmask;
return IPallbits;
}
.
233c
} else if(i == 2){
.
209c
return fmtprint(f, "(eipfmt)");
.
206,207c
return fmtprint(f, "/%d", n);
.
185,186c
return fmtprint(f, ifmt, p[0], p[1], p[2], p[3]);
.
144,147c
if(memcmp(p, v4prefix, 12) == 0)
return fmtprint(f, ifmt, p[12], p[13], p[14], p[15]);
.
138,139c
return fmtprint(f, efmt, p[0], p[1], p[2], p[3], p[4], p[5]);
.
48a
char *v6hdrtypes[Maxhdrtype] =
{
[HBH] "HopbyHop",
[ICMP] "ICMP",
[IGMP] "IGMP",
[GGP] "GGP",
[IPINIP] "IP",
[ST] "ST",
[TCP] "TCP",
[UDP] "UDP",
[ISO_TP4] "ISO_TP4",
[RH] "Routinghdr",
[FH] "Fraghdr",
[IDRP] "IDRP",
[RSVP] "RSVP",
[AH] "Authhdr",
[ESP] "ESP",
[ICMPv6] "ICMPv6",
[NNH] "Nonexthdr",
[ISO_IP] "ISO_IP",
[IGRP] "IGRP",
[OSPF] "OSPF",
};
/*
* well known IPv6 addresses
*/
uchar v6Unspecified[IPaddrlen] = {
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0
};
uchar v6loopback[IPaddrlen] = {
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0x01
};
uchar v6linklocal[IPaddrlen] = {
0xfe, 0x80, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0
};
uchar v6linklocalmask[IPaddrlen] = {
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0, 0, 0, 0,
0, 0, 0, 0
};
int v6linklocalprefix = 8;
uchar v6sitelocal[IPaddrlen] = {
0xfe, 0xc0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0
};
uchar v6sitelocalmask[IPaddrlen] = {
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0, 0, 0, 0,
0, 0, 0, 0
};
int v6sitelocalprefix = 6;
uchar v6glunicast[IPaddrlen] = {
0x08, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0
};
uchar v6multicast[IPaddrlen] = {
0xff, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0
};
uchar v6multicastmask[IPaddrlen] = {
0xff, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0
};
int v6multicastprefix = 1;
uchar v6allnodesN[IPaddrlen] = {
0xff, 0x01, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0x01
};
uchar v6allnodesNmask[IPaddrlen] = {
0xff, 0xff, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0
};
int v6allnodesprefix = 2;
uchar v6allnodesL[IPaddrlen] = {
0xff, 0x02, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0x01
};
uchar v6allnodesLmask[IPaddrlen] = {
0xff, 0xff, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0
};
int v6allnodesLprefix = 2;
uchar v6allroutersN[IPaddrlen] = {
0xff, 0x01, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0x02
};
uchar v6allroutersL[IPaddrlen] = {
0xff, 0x02, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0x02
};
uchar v6allroutersS[IPaddrlen] = {
0xff, 0x05, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0x02
};
uchar v6solicitednode[IPaddrlen] = {
0xff, 0x02, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0x01,
0xff, 0, 0, 0
};
uchar v6solicitednodemask[IPaddrlen] = {
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0x0, 0x0, 0x0
};
int v6solicitednodeprefix = 13;
.
35a
.
7a
#include "ipv6.h"
.
## diffname ip/ipaux.c 2003/0404
## diff -e /n/emeliedump/2002/0507/sys/src/9/ip/ipaux.c /n/emeliedump/2003/0404/sys/src/9/ip/ipaux.c
352c
return fmtstrcpy(f, "(eipfmt)");
.
349,350c
snprint(buf, sizeof buf, "/%d", n);
return fmtstrcpy(f, buf);
.
329c
snprint(buf, sizeof buf, ifmt, p[0], p[1], p[2], p[3]);
return fmtstrcpy(f, buf);
.
290,291c
if(memcmp(p, v4prefix, 12) == 0){
snprint(buf, sizeof buf, ifmt, p[12], p[13], p[14], p[15]);
return fmtstrcpy(f, buf);
}
.
285c
snprint(buf, sizeof buf, efmt, p[0], p[1], p[2], p[3], p[4], p[5]);
return fmtstrcpy(f, buf);
.
|
