diff options
Diffstat (limited to 'usr.sbin/pppd/sys-bsd.c')
| -rw-r--r-- | usr.sbin/pppd/sys-bsd.c | 130 |
1 files changed, 129 insertions, 1 deletions
diff --git a/usr.sbin/pppd/sys-bsd.c b/usr.sbin/pppd/sys-bsd.c index 3ca43c0..ccb13c8 100644 --- a/usr.sbin/pppd/sys-bsd.c +++ b/usr.sbin/pppd/sys-bsd.c @@ -58,6 +58,10 @@ static char rcsid[] = "$FreeBSD$"; #include <net/route.h> #include <net/if_dl.h> #include <netinet/in.h> +#include <net/if_var.h> +#include <netinet6/in6_var.h> +#include <netinet6/nd6.h> +#include <ifaddrs.h> #ifdef IPX_CHANGE #include <netipx/ipx.h> @@ -100,6 +104,9 @@ static char loop_name[20]; static unsigned char inbuf[512]; /* buffer for chars read from loopback */ static int sockfd; /* socket for doing interface ioctls */ +#ifdef INET6 +static int sock6_fd = -1; /* socket for doing ipv6 interface ioctls */ +#endif /* INET6 */ static int if_is_up; /* the interface is currently up */ static u_int32_t ifaddrs[2]; /* local and remote addresses we set */ @@ -122,6 +129,13 @@ sys_init() syslog(LOG_ERR, "Couldn't create IP socket: %m"); die(1); } + +#ifdef INET6 + if ((sock6_fd = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { + /* check it at runtime */ + sock6_fd = -1; + } +#endif } /* @@ -156,7 +170,12 @@ sys_cleanup() void sys_close() { - close(sockfd); + if (sockfd >= 0) + close(sockfd); +#ifdef INET6 + if (sock6_fd >= 0) + close(sock6_fd); +#endif if (loop_slave >= 0) { close(loop_slave); close(loop_master); @@ -476,6 +495,115 @@ int fd, on; ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits); } +#ifdef INET6 +/* + * sif6addr - Config the interface with an IPv6 link-local address + */ +int +sif6addr(int unit, eui64_t our_eui64, eui64_t his_eui64) +{ + int ifindex; + struct in6_aliasreq addreq6; + + if (sock6_fd < 0) { + syslog(LOG_ERR, "No IPv6 socket available"); + die(1); + /*NOTREACHED*/ + } + + /* actually, this part is not kame local - RFC2553 conformant */ + ifindex = if_nametoindex(ifname); + if (ifindex == 0) { + syslog(LOG_ERR, "sifaddr6: no interface %s", ifname); + return 0; + } + + memset(&addreq6, 0, sizeof(addreq6)); + strlcpy(addreq6.ifra_name, ifname, sizeof(addreq6.ifra_name)); + + /* my addr */ + addreq6.ifra_addr.sin6_family = AF_INET6; + addreq6.ifra_addr.sin6_len = sizeof(struct sockaddr_in6); + addreq6.ifra_addr.sin6_addr.s6_addr[0] = 0xfe; + addreq6.ifra_addr.sin6_addr.s6_addr[1] = 0x80; + memcpy(&addreq6.ifra_addr.sin6_addr.s6_addr[8], &our_eui64, + sizeof(our_eui64)); + /* KAME ifindex hack */ + *(u_int16_t *)&addreq6.ifra_addr.sin6_addr.s6_addr[2] = htons(ifindex); + + /* his addr */ + addreq6.ifra_dstaddr.sin6_family = AF_INET6; + addreq6.ifra_dstaddr.sin6_len = sizeof(struct sockaddr_in6); + addreq6.ifra_dstaddr.sin6_addr.s6_addr[0] = 0xfe; + addreq6.ifra_dstaddr.sin6_addr.s6_addr[1] = 0x80; + memcpy(&addreq6.ifra_dstaddr.sin6_addr.s6_addr[8], &his_eui64, + sizeof(our_eui64)); + /* KAME ifindex hack */ + *(u_int16_t *)&addreq6.ifra_dstaddr.sin6_addr.s6_addr[2] = htons(ifindex); + + /* prefix mask: 128bit */ + addreq6.ifra_prefixmask.sin6_family = AF_INET6; + addreq6.ifra_prefixmask.sin6_len = sizeof(struct sockaddr_in6); + memset(&addreq6.ifra_prefixmask.sin6_addr, 0xff, + sizeof(addreq6.ifra_prefixmask.sin6_addr)); + + /* address lifetime (infty) */ + addreq6.ifra_lifetime.ia6t_pltime = ND6_INFINITE_LIFETIME; + addreq6.ifra_lifetime.ia6t_vltime = ND6_INFINITE_LIFETIME; + + if (ioctl(sock6_fd, SIOCAIFADDR_IN6, &addreq6) < 0) { + syslog(LOG_ERR, "sif6addr: ioctl(SIOCAIFADDR_IN6): %m"); + return 0; + } + + return 1; +} + + +/* + * cif6addr - Remove IPv6 address from interface + */ +int +cif6addr(int unit, eui64_t our_eui64, eui64_t his_eui64) +{ + int ifindex; + struct in6_ifreq delreq6; + + if (sock6_fd < 0) { + syslog(LOG_ERR, "No IPv6 socket available"); + die(1); + /*NOTREACHED*/ + } + + /* actually, this part is not kame local - RFC2553 conformant */ + ifindex = if_nametoindex(ifname); + if (ifindex == 0) { + syslog(LOG_ERR, "cifaddr6: no interface %s", ifname); + return 0; + } + + memset(&delreq6, 0, sizeof(delreq6)); + strlcpy(delreq6.ifr_name, ifname, sizeof(delreq6.ifr_name)); + + /* my addr */ + delreq6.ifr_ifru.ifru_addr.sin6_family = AF_INET6; + delreq6.ifr_ifru.ifru_addr.sin6_len = sizeof(struct sockaddr_in6); + delreq6.ifr_ifru.ifru_addr.sin6_addr.s6_addr[0] = 0xfe; + delreq6.ifr_ifru.ifru_addr.sin6_addr.s6_addr[1] = 0x80; + memcpy(&delreq6.ifr_ifru.ifru_addr.sin6_addr.s6_addr[8], &our_eui64, + sizeof(our_eui64)); + /* KAME ifindex hack */ + *(u_int16_t *)&delreq6.ifr_ifru.ifru_addr.sin6_addr.s6_addr[2] = + htons(ifindex); + + if (ioctl(sock6_fd, SIOCDIFADDR_IN6, &delreq6) < 0) { + syslog(LOG_ERR, "cif6addr: ioctl(SIOCDIFADDR_IN6): %m"); + return 0; + } + + return 1; +} +#endif /* INET6 */ /* * open_ppp_loopback - open the device we use for getting |
