diff options
Diffstat (limited to 'accel-pptpd/ipcp_opt_ipaddr.c')
| -rw-r--r-- | accel-pptpd/ipcp_opt_ipaddr.c | 59 |
1 files changed, 50 insertions, 9 deletions
diff --git a/accel-pptpd/ipcp_opt_ipaddr.c b/accel-pptpd/ipcp_opt_ipaddr.c index 206c2e6e..2fa92519 100644 --- a/accel-pptpd/ipcp_opt_ipaddr.c +++ b/accel-pptpd/ipcp_opt_ipaddr.c @@ -1,6 +1,10 @@ #include <stdlib.h> #include <string.h> +#include <errno.h> #include <arpa/inet.h> +#include <net/if.h> +#include <sys/ioctl.h> +#include <linux/if_ppp.h> #include "ppp.h" #include "ppp_ipcp.h" @@ -72,19 +76,56 @@ static int ipaddr_send_conf_nak(struct ppp_ipcp_t *ipcp, struct ipcp_option_t *o static int ipaddr_recv_conf_req(struct ppp_ipcp_t *ipcp, struct ipcp_option_t *opt, uint8_t *ptr) { - struct ipaddr_option_t *ipaddr_opt=container_of(opt,typeof(*ipaddr_opt),opt); - struct ipcp_opt32_t *opt32=(struct ipcp_opt32_t*)ptr; - - if (ipaddr_opt->peer_addr==opt32->val) - return IPCP_OPT_ACK; + struct ipaddr_option_t *ipaddr_opt = container_of(opt,typeof(*ipaddr_opt), opt); + struct ipcp_opt32_t *opt32 = (struct ipcp_opt32_t*)ptr; + struct ifreq ifr; + struct sockaddr_in addr; + struct npioctl np; + + if (ipaddr_opt->peer_addr == opt32->val) + goto ack; - if (!ipaddr_opt->peer_addr) - { - ipaddr_opt->peer_addr=opt32->val; - return IPCP_OPT_ACK; + if (!ipaddr_opt->peer_addr) { + ipaddr_opt->peer_addr = opt32->val; + goto ack; } return IPCP_OPT_NAK; + +ack: + memset(&ifr, 0, sizeof(ifr)); + memset(&addr, 0, sizeof(addr)); + + sprintf(ifr.ifr_name,"ppp%i",ipcp->ppp->unit_idx); + + addr.sin_family = AF_INET; + addr.sin_addr.s_addr = ipaddr_opt->addr; + memcpy(&ifr.ifr_addr,&addr,sizeof(addr)); + + if (ioctl(sock_fd, SIOCSIFADDR, &ifr)) + log_error("\nipcp: failed to set PA address: %s\n", strerror(errno)); + + addr.sin_addr.s_addr = ipaddr_opt->peer_addr; + memcpy(&ifr.ifr_dstaddr,&addr,sizeof(addr)); + + if (ioctl(sock_fd, SIOCSIFDSTADDR, &ifr)) + log_error("\nipcp: failed to set remote PA address: %s\n", strerror(errno)); + + if (ioctl(sock_fd, SIOCGIFFLAGS, &ifr)) + log_error("\nipcp: failed to get interface flags: %s\n", strerror(errno)); + + ifr.ifr_flags |= IFF_UP | IFF_POINTOPOINT; + + if (ioctl(sock_fd, SIOCSIFFLAGS, &ifr)) + log_error("\nipcp: failed to set interface flags: %s\n", strerror(errno)); + + np.protocol = PPP_IP; + np.mode = NPMODE_PASS; + + if (ioctl(ipcp->ppp->unit_fd, PPPIOCSNPMODE, &np)) + log_error("\nipcp: failed to set NP mode: %s\n", strerror(errno)); + + return IPCP_OPT_ACK; } static void ipaddr_print(void (*print)(const char *fmt,...),struct ipcp_option_t *opt, uint8_t *ptr) |