/* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
static char *INET6_sprint(struct sockaddr *sap, int numeric)
{
static char buff[128];
if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
if (INET6_rresolve(buff, (struct sockaddr_in6 *) sap, numeric) != 0)
return (NULL);
return (buff);
}
/* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
static char *INET6_sprint(struct sockaddr *sap, int numeric)
{
static char buff[128];
if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
if (INET6_rresolve(buff, (struct sockaddr_in6 *) sap, numeric) != 0)
return safe_strncpy(buff, _("[UNKNOWN]"), sizeof(buff));
return (fix_v4_address(buff, &((struct sockaddr_in6 *)sap)->sin6_addr));
}
static void snprint_ip_port(char *ip_port, int size, struct sockaddr *addr, int port, const char *proto, int numeric)
{
const char *port_name;
#if ENABLE_FEATURE_IPV6
if (addr->sa_family == AF_INET6) {
INET6_rresolve(ip_port, size, (struct sockaddr_in6 *)addr,
(numeric & NETSTAT_NUMERIC) ? 0x0fff : 0);
} else
#endif
{
INET_rresolve(ip_port, size, (struct sockaddr_in *)addr,
0x4000 | ((numeric & NETSTAT_NUMERIC) ? 0x0fff : 0),
0xffffffff);
}
port_name = get_sname(htons(port), proto, numeric);
if ((strlen(ip_port) + strlen(port_name)) > 22)
ip_port[22 - strlen(port_name)] = '\0';
ip_port += strlen(ip_port);
strcat(ip_port, ":");
strcat(ip_port, port_name);
}
static void INET6_displayroutes(int noresolve)
{
char addr6[128], naddr6[128];
/* In addr6x, we store both 40-byte ':'-delimited ipv6 addresses.
* We read the non-delimited strings into the tail of the buffer
* using fscanf and then modify the buffer by shifting forward
* while inserting ':'s and the nul terminator for the first string.
* Hence the strings are at addr6x and addr6x+40. This generates
* _much_ less code than the previous (upstream) approach. */
char addr6x[80];
char iface[16], flags[16];
int iflags, metric, refcnt, use, prefix_len, slen;
struct sockaddr_in6 snaddr6;
FILE *fp = bb_xfopen("/proc/net/ipv6_route", "r");
bb_printf("Kernel IPv6 routing table\n%-44s%-40s"
"Flags Metric Ref Use Iface\n",
"Destination", "Next Hop");
while (1) {
int r;
r = fscanf(fp, "%32s%x%*s%x%32s%x%x%x%x%s\n",
addr6x+14, &prefix_len, &slen, addr6x+40+7,
&metric, &use, &refcnt, &iflags, iface);
if (r != 9) {
if ((r < 0) && feof(fp)) { /* EOF with no (nonspace) chars read. */
break;
}
ERROR:
bb_error_msg_and_die("fscanf");
}
/* Do the addr6x shift-and-insert changes to ':'-delimit addresses.
* For now, always do this to validate the proc route format, even
* if the interface is down. */
{
int i = 0;
char *p = addr6x+14;
do {
if (!*p) {
if (i==40) { /* nul terminator for 1st address? */
addr6x[39] = 0; /* Fixup... need 0 instead of ':'. */
++p; /* Skip and continue. */
continue;
}
goto ERROR;
}
addr6x[i++] = *p++;
if (!((i+1)%5)) {
addr6x[i++] = ':';
}
} while (i < 40+28+7);
}
if (!(iflags & RTF_UP)) { /* Skip interfaces that are down. */
continue;
}
set_flags(flags, (iflags & IPV6_MASK));
r = 0;
do {
inet_pton(AF_INET6, addr6x + r,
(struct sockaddr *) &snaddr6.sin6_addr);
snaddr6.sin6_family = AF_INET6;
INET6_rresolve(naddr6, sizeof(naddr6),
(struct sockaddr_in6 *) &snaddr6,
#if 0
(noresolve | 0x8000) /* Default instead of *. */
#else
0x0fff /* Apparently, upstream never resolves. */
#endif
);
if (!r) { /* 1st pass */
snprintf(addr6, sizeof(addr6), "%s/%d", naddr6, prefix_len);
r += 40;
} else { /* 2nd pass */
/* Print the info. */
bb_printf("%-43s %-39s %-5s %-6d %-2d %7d %-8s\n",
addr6, naddr6, flags, metric, refcnt, use, iface);
break;
}
} while (1);
}
}
static void INET6_displayroutes(int noresolve)
{
char buff[256];
char iface[16], flags[16];
char addr6[128], naddr6[128];
struct sockaddr_in6 saddr6, snaddr6;
int iflags, metric, refcnt, use, prefix_len, slen;
int numeric;
char addr6p[8][5], saddr6p[8][5], naddr6p[8][5];
FILE *fp = bb_xfopen("/proc/net/ipv6_route", "r");
flags[0] = 'U';
if (noresolve)
noresolve = 0x0fff;
numeric = noresolve | 0x8000; /* default instead of * */
printf("Kernel IPv6 routing table\n"
"Destination "
"Next Hop "
"Flags Metric Ref Use Iface\n");
while (fgets(buff, sizeof(buff), fp) != NULL) {
int ifl;
if (sscanf(buff, "%4s%4s%4s%4s%4s%4s%4s%4s %02x "
"%4s%4s%4s%4s%4s%4s%4s%4s %02x "
"%4s%4s%4s%4s%4s%4s%4s%4s %08x %08x %08x %08x %s\n",
addr6p[0], addr6p[1], addr6p[2], addr6p[3],
addr6p[4], addr6p[5], addr6p[6], addr6p[7],
&prefix_len,
saddr6p[0], saddr6p[1], saddr6p[2], saddr6p[3],
saddr6p[4], saddr6p[5], saddr6p[6], saddr6p[7],
&slen,
naddr6p[0], naddr6p[1], naddr6p[2], naddr6p[3],
naddr6p[4], naddr6p[5], naddr6p[6], naddr6p[7],
&metric, &use, &refcnt, &iflags, iface) != 31) {
bb_error_msg_and_die("Unsuported kernel route format\n");
}
ifl = 1; /* parse flags */
if (!(iflags & RTF_UP))
continue;
if (iflags & RTF_GATEWAY)
flags[ifl++] = 'G';
if (iflags & RTF_HOST)
flags[ifl++] = 'H';
if (iflags & RTF_DEFAULT)
flags[ifl++] = 'D';
if (iflags & RTF_ADDRCONF)
flags[ifl++] = 'A';
if (iflags & RTF_CACHE)
flags[ifl++] = 'C';
flags[ifl] = 0;
/* Fetch and resolve the target address. */
snprintf(addr6, sizeof(addr6), "%s:%s:%s:%s:%s:%s:%s:%s",
addr6p[0], addr6p[1], addr6p[2], addr6p[3],
addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
inet_pton(AF_INET6, addr6, (struct sockaddr *) &saddr6.sin6_addr);
saddr6.sin6_family = AF_INET6;
INET6_rresolve(addr6, sizeof(addr6), (struct sockaddr_in6 *) &saddr6,
numeric);
snprintf(addr6, sizeof(addr6), "%s/%d", addr6, prefix_len);
/* Fetch and resolve the nexthop address. */
snprintf(naddr6, sizeof(naddr6), "%s:%s:%s:%s:%s:%s:%s:%s",
naddr6p[0], naddr6p[1], naddr6p[2], naddr6p[3],
naddr6p[4], naddr6p[5], naddr6p[6], naddr6p[7]);
inet_pton(AF_INET6, naddr6, (struct sockaddr *) &snaddr6.sin6_addr);
snaddr6.sin6_family = AF_INET6;
INET6_rresolve(naddr6, sizeof(naddr6),
(struct sockaddr_in6 *) &snaddr6, numeric);
/* Print the info. */
printf("%-43s %-39s %-5s %-6d %-2d %7d %-8s\n",
addr6, naddr6, flags, metric, refcnt, use, iface);
}
}
int
INET6_displayroutes_array(webs_t wp)
{
char addr6[128], *naddr6;
/* In addr6x, we store both 40-byte ':'-delimited ipv6 addresses.
* We read the non-delimited strings into the tail of the buffer
* using fscanf and then modify the buffer by shifting forward
* while inserting ':'s and the nul terminator for the first string.
* Hence the strings are at addr6x and addr6x+40. This generates
* _much_ less code than the previous (upstream) approach. */
char addr6x[80];
char iface[16], flags[16];
int iflags, metric, refcnt, use, prefix_len, slen;
struct sockaddr_in6 snaddr6;
int ret = 0;
FILE *fp = fopen("/proc/net/ipv6_route", "r");
while (1) {
int r;
r = fscanf(fp, "%32s%x%*s%x%32s%x%x%x%x%s\n",
addr6x+14, &prefix_len, &slen, addr6x+40+7,
&metric, &use, &refcnt, &iflags, iface);
if (r != 9) {
if ((r < 0) && feof(fp)) { /* EOF with no (nonspace) chars read. */
break;
}
ERROR:
perror("fscanf");
return ret;
}
/* Do the addr6x shift-and-insert changes to ':'-delimit addresses.
* For now, always do this to validate the proc route format, even
* if the interface is down. */
{
int i = 0;
char *p = addr6x+14;
do {
if (!*p) {
if (i == 40) { /* nul terminator for 1st address? */
addr6x[39] = 0; /* Fixup... need 0 instead of ':'. */
++p; /* Skip and continue. */
continue;
}
goto ERROR;
}
addr6x[i++] = *p++;
if (!((i+1) % 5)) {
addr6x[i++] = ':';
}
} while (i < 40+28+7);
}
if (!(iflags & RTF_UP)) { /* Skip interfaces that are down. */
continue;
}
ipv6_set_flags(flags, (iflags & IPV6_MASK));
r = 0;
do {
inet_pton(AF_INET6, addr6x + r,
(struct sockaddr *) &snaddr6.sin6_addr);
snaddr6.sin6_family = AF_INET6;
naddr6 = INET6_rresolve((struct sockaddr_in6 *) &snaddr6,
0x0fff /* Apparently, upstream never resolves. */
);
if (!r) { /* 1st pass */
snprintf(addr6, sizeof(addr6), "%s/%d", naddr6, prefix_len);
r += 40;
free(naddr6);
} else { /* 2nd pass */
/* Print the info. */
ret += websWrite(wp, "[\"%3s\", \"%s\", \"%s\", \"%d\", \"%d\", \"%d\", \"%s\"],\n",
addr6, naddr6, flags, metric, refcnt, use, iface);
free(naddr6);
break;
}
} while (1);
}
return ret;;
}
