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busybox: Add IPv6 support for ifconfig
Change the way ifconfig obtains the IPv6 addresses JIRA: COG-42
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,151 @@ | ||
| networking/ifconfig.c | 25 ++++++++-------------- | ||
| networking/interface.c | 56 +++++++++++++++++++++++++++++++++++++++++++++++++- | ||
| 2 files changed, 63 insertions(+), 18 deletions(-) | ||
|
|
||
| diff --git a/networking/ifconfig.c b/networking/ifconfig.c | ||
| index 0a91e71..9c22c61 100644 | ||
| --- a/networking/ifconfig.c | ||
| +++ b/networking/ifconfig.c | ||
| @@ -100,6 +100,7 @@ | ||
| #include "libbb.h" | ||
| #include "inet_common.h" | ||
| #include <net/if.h> | ||
| +#include <net/if6.h> | ||
| #include <net/if_arp.h> | ||
| #include <netinet/in.h> | ||
| #ifdef HAVE_NET_ETHERNET_H | ||
| @@ -129,14 +130,6 @@ | ||
| # define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */ | ||
| #endif | ||
|
|
||
| -#if ENABLE_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 '-'. | ||
| @@ -272,8 +265,8 @@ static const struct arg1opt Arg1Opt[] = { | ||
| { "SIFMAP", SIOCSIFMAP, ifreq_offsetof(ifr_map.irq) }, | ||
| #endif | ||
| #if ENABLE_FEATURE_IPV6 | ||
| - { "SIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr) }, /* IPv6 version ignores the offset */ | ||
| - { "DIFADDR", SIOCDIFADDR, ifreq_offsetof(ifr_addr) }, /* IPv6 version ignores the offset */ | ||
| + { "SIFADDR", SIOCAIFADDR_IN6, ifreq_offsetof(ifr_addr) }, /* IPv6 version ignores the offset */ | ||
| + { "DIFADDR", SIOCDIFADDR_IN6, ifreq_offsetof(ifr_addr) }, /* IPv6 version ignores the offset */ | ||
| #endif | ||
| /* Last entry is for unmatched (assumed to be hostname/address) arg. */ | ||
| { "SIFADDR", SIOCSIFADDR, ifreq_offsetof(ifr_addr) }, | ||
| @@ -453,15 +446,13 @@ int ifconfig_main(int argc UNUSED_PARAM, char **argv) | ||
| } | ||
| if (lsa->u.sa.sa_family == AF_INET6) { | ||
| int sockfd6; | ||
| - struct in6_ifreq ifr6; | ||
| + struct in6_aliasreq ifr6; | ||
|
|
||
| sockfd6 = xsocket(AF_INET6, SOCK_DGRAM, 0); | ||
| - xioctl(sockfd6, SIOCGIFINDEX, &ifr); | ||
| - ifr6.ifr6_ifindex = ifr.ifr_ifindex; | ||
| - ifr6.ifr6_prefixlen = prefix_len; | ||
| - memcpy(&ifr6.ifr6_addr, | ||
| - &lsa->u.sin6.sin6_addr, | ||
| - sizeof(struct in6_addr)); | ||
| + strncpy_IFNAMSIZ(ifr6.ifra_name, ifr.ifr_name); | ||
| + memcpy(&ifr6.ifrau_addr, | ||
| + &lsa->u.sin6, | ||
| + sizeof(struct sockaddr_in6)); | ||
| ioctl_or_perror_and_die(sockfd6, a1op->selector, &ifr6, "SIOC%s", a1op->name); | ||
| if (ENABLE_FEATURE_CLEAN_UP) | ||
| free(lsa); | ||
| diff --git a/networking/interface.c b/networking/interface.c | ||
| index 228ccf7..535c741 100644 | ||
| --- a/networking/interface.c | ||
| +++ b/networking/interface.c | ||
| @@ -33,6 +33,7 @@ | ||
|
|
||
| #include "libbb.h" | ||
| #include "inet_common.h" | ||
| +#include <ifaddrs.h> | ||
| #include <net/if.h> | ||
| #include <net/if_arp.h> | ||
| #ifdef HAVE_NET_ETHERNET_H | ||
| @@ -52,7 +53,6 @@ | ||
| #endif | ||
|
|
||
| #define _PATH_PROCNET_DEV "/proc/net/dev" | ||
| -#define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6" | ||
|
|
||
| #ifdef HAVE_AFINET6 | ||
| # ifndef _LINUX_IN6_H | ||
| @@ -841,6 +841,7 @@ static void print_bytes_scaled(unsigned long long ull, const char *end) | ||
|
|
||
|
|
||
| #ifdef HAVE_AFINET6 | ||
| +#if !defined(__phoenix__) | ||
| #define IPV6_ADDR_ANY 0x0000U | ||
|
|
||
| #define IPV6_ADDR_UNICAST 0x0001U | ||
| @@ -913,6 +914,59 @@ static void ife_print6(struct interface *ptr) | ||
| fclose(f); | ||
| } | ||
| #else | ||
| +static void ife_print6(struct interface *ptr) | ||
| +{ | ||
| + char addr6[50]; | ||
| + | ||
| + struct ifaddrs *ifap; | ||
| + getifaddrs(&ifap); | ||
| + | ||
| + while (ifap != NULL) { | ||
| + if (strcmp(ifap->ifa_name, ptr->name) == 0) { | ||
| + struct sockaddr_in6 *addr; | ||
| + addr = ifap->ifa_addr; | ||
| + | ||
| + if (addr->sin6_family == AF_INET6) { | ||
| + inet_ntop(AF_INET6, &addr->sin6_addr, addr6, 50); | ||
| + | ||
| + /* Get the prefix length */ | ||
| + unsigned char *c = ((struct sockaddr_in6 *)ifap->ifa_netmask)->sin6_addr.s6_addr; | ||
| + int i = 0, j = 0; | ||
| + unsigned char n = 0; | ||
| + while (i < 16) { | ||
| + n = c[i]; | ||
| + while (n > 0) { | ||
| + if (n & 1) j++; | ||
| + n = n/2; | ||
| + } | ||
| + i++; | ||
| + } | ||
| + | ||
| + printf(" inet6 addr: %s/%d", addr6, j); | ||
| + printf(" Scope:"); | ||
| + | ||
| + if (IN6_IS_ADDR_LINKLOCAL(&addr->sin6_addr)) { | ||
| + puts("link-local"); | ||
| + } else if (IN6_IS_ADDR_SITELOCAL(&addr->sin6_addr)) { | ||
| + puts("site-local"); | ||
| + } else if (IN6_IS_ADDR_V4MAPPED(&addr->sin6_addr)) { | ||
| + puts("v4mapped"); | ||
| + } else if (IN6_IS_ADDR_V4COMPAT(&addr->sin6_addr)) { | ||
| + puts("v4compat"); | ||
| + } else if (IN6_IS_ADDR_LOOPBACK(&addr->sin6_addr)) { | ||
| + puts("host"); | ||
| + } else if (IN6_IS_ADDR_UNSPECIFIED(&addr->sin6_addr)) { | ||
| + puts("unspecified"); | ||
| + } else { | ||
| + puts("global"); | ||
| + } | ||
| + } | ||
| + } | ||
| + ifap = ifap->ifa_next; | ||
| + } | ||
| +} | ||
| +#endif | ||
| +#else | ||
| #define ife_print6(a) ((void)0) | ||
| #endif | ||
|
|