diff options
Diffstat (limited to 'networking/ifconfig.c')
| -rw-r--r-- | networking/ifconfig.c | 67 |
1 files changed, 66 insertions, 1 deletions
diff --git a/networking/ifconfig.c b/networking/ifconfig.c index 0b834e7..9e87c8b 100644 --- a/networking/ifconfig.c +++ b/networking/ifconfig.c @@ -15,7 +15,7 @@ * Foundation; either version 2 of the License, or (at * your option) any later version. * - * $Id: ifconfig.c,v 1.16 2001/11/10 11:22:43 andersen Exp $ + * $Id: ifconfig.c,v 1.17 2002/07/03 11:46:34 andersen Exp $ * */ @@ -27,6 +27,9 @@ * args missing from initial port. * * Still missing: media, tunnel. + * + * 2002-04-20 + * IPV6 support added by Bart Visscher <magick@linux-fan.com> */ #include <stdio.h> @@ -65,6 +68,14 @@ #define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */ #endif +#if CONFIG_FEATURE_IPV6 +struct in6_ifreq { + struct in6_addr ifr6_addr; + uint32_t ifr6_prefixlen; + int ifr6_ifindex; +}; +#endif + /* * Here are the bit masks for the "flags" member of struct options below. * N_ signifies no arg prefix; M_ signifies arg prefixed by '-'. @@ -143,6 +154,7 @@ #define ARG_KEEPALIVE (A_ARG_REQ | A_CAST_CHAR_PTR) #define ARG_OUTFILL (A_ARG_REQ | A_CAST_CHAR_PTR) #define ARG_HOSTNAME (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER | A_COLON_CHK) +#define ARG_ADD_DEL (A_CAST_HOST_COPY_RESOLVE | A_SET_AFTER) /* @@ -187,6 +199,10 @@ static const struct arg1opt Arg1Opt[] = { {"SIOCSIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.irq)}, #endif /* Last entry if for unmatched (possibly hostname) arg. */ +#if CONFIG_FEATURE_IPV6 + {"SIOCSIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr)}, /* IPv6 version ignores the offset */ + {"SIOCDIFADDR", SIOCDIFADDR, ifreq_offsetof(ifr_addr)}, /* IPv6 version ignores the offset */ +#endif {"SIOCSIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr)}, }; @@ -212,6 +228,10 @@ static const struct options OptArray[] = { {"io_addr", N_ARG, ARG_IO_ADDR, 0}, {"irq", N_ARG, ARG_IRQ, 0}, #endif +#if CONFIG_FEATURE_IPV6 + {"add", N_ARG, ARG_ADD_DEL, 0}, + {"del", N_ARG, ARG_ADD_DEL, 0}, +#endif {"arp", N_CLR | M_SET, 0, IFF_NOARP}, {"trailers", N_CLR | M_SET, 0, IFF_NOTRAILERS}, {"promisc", N_SET | M_CLR, 0, IFF_PROMISC}, @@ -244,6 +264,9 @@ int ifconfig_main(int argc, char **argv) { struct ifreq ifr; struct sockaddr_in sai; +#if CONFIG_FEATURE_IPV6 + struct sockaddr_in6 sai6; +#endif #ifdef CONFIG_FEATURE_IFCONFIG_HW struct sockaddr sa; #endif @@ -334,12 +357,54 @@ int ifconfig_main(int argc, char **argv) #ifdef CONFIG_FEATURE_IFCONFIG_HW if (mask & A_CAST_RESOLVE) { #endif +#if CONFIG_FEATURE_IPV6 + char *prefix; + int prefix_len=0; +#endif + safe_strncpy(host, *argv, (sizeof host)); +#if CONFIG_FEATURE_IPV6 + if ((prefix = strchr(host, '/'))) { + prefix_len = atol(prefix + 1); + if ((prefix_len < 0) || (prefix_len > 128)) { + ++goterr; + goto LOOP; + } + *prefix = 0; + } +#endif + sai.sin_family = AF_INET; sai.sin_port = 0; if (!strcmp(host, bb_INET_default)) { /* Default is special, meaning 0.0.0.0. */ sai.sin_addr.s_addr = INADDR_ANY; +#if CONFIG_FEATURE_IPV6 + } else + if (inet_pton(AF_INET6, host, &sai6.sin6_addr) > 0) { + int sockfd6; + struct in6_ifreq ifr6; + + memcpy((char *) &ifr6.ifr6_addr, (char *) &sai6.sin6_addr, + sizeof(struct in6_addr)); + + /* Create a channel to the NET kernel. */ + if ((sockfd6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { + perror_msg_and_die("socket6"); + } + if (ioctl(sockfd6, SIOGIFINDEX, &ifr) < 0) { + perror("SIOGIFINDEX"); + ++goterr; + continue; + } + ifr6.ifr6_ifindex = ifr.ifr_ifindex; + ifr6.ifr6_prefixlen = prefix_len; + if (ioctl(sockfd6, a1op->selector, &ifr6) < 0) { + perror(a1op->name); + ++goterr; + } + continue; +#endif } else if (inet_aton(host, &sai.sin_addr) == 0) { /* It's not a dotted quad. */ ++goterr; |