diff options
Diffstat (limited to 'accel-pppd/ctrl/ipoe/dhcpv4.c')
| -rw-r--r-- | accel-pppd/ctrl/ipoe/dhcpv4.c | 26 |
1 files changed, 10 insertions, 16 deletions
diff --git a/accel-pppd/ctrl/ipoe/dhcpv4.c b/accel-pppd/ctrl/ipoe/dhcpv4.c index a8b306b..6c97bc8 100644 --- a/accel-pppd/ctrl/ipoe/dhcpv4.c +++ b/accel-pppd/ctrl/ipoe/dhcpv4.c @@ -693,13 +693,10 @@ static inline int dhcpv4_packet_add_opt_u32(struct dhcpv4_packet *pack, int type int dhcpv4_send_reply(int msg_type, struct dhcpv4_serv *serv, struct dhcpv4_packet *req, uint32_t yiaddr, uint32_t siaddr, uint32_t router, uint32_t mask, int lease_time, int renew_time, struct dhcpv4_packet *relay) { struct dhcpv4_packet *pack; - int val, r; - struct dns { - in_addr_t dns1; - in_addr_t dns2; - } dns; - int dns_avail = 0; struct dhcpv4_option *opt; + in_addr_t addr[2]; + int dns_avail = 0; + int val, r; pack = dhcpv4_packet_alloc(); if (!pack) { @@ -743,7 +740,7 @@ int dhcpv4_send_reply(int msg_type, struct dhcpv4_serv *serv, struct dhcpv4_pack list_for_each_entry(opt, &relay->options, entry) { if (opt->type == 53 || opt->type == 54 || opt->type == 51 || opt->type == 58 || opt->type == 1 || (opt->type == 3 && router)) continue; - if (opt->type == 6) + else if (opt->type == 6) dns_avail = 1; if (dhcpv4_packet_add_opt(pack, opt->type, opt->data, opt->len)) goto out_err; @@ -751,15 +748,12 @@ int dhcpv4_send_reply(int msg_type, struct dhcpv4_serv *serv, struct dhcpv4_pack } if (!dns_avail) { - if (conf_dns1 && conf_dns2) { - dns.dns1 = conf_dns1; - dns.dns2 = conf_dns2; - if (dhcpv4_packet_add_opt(pack, 6, &dns, 8)) - goto out_err; - } else if (conf_dns1) { - if (dhcpv4_packet_add_opt(pack, 6, &conf_dns1, 4)) - goto out_err; - } + if (conf_dns1) + addr[dns_avail++] = conf_dns1; + if (conf_dns2) + addr[dns_avail++] = conf_dns2; + if (dns_avail && dhcpv4_packet_add_opt(pack, 6, addr, dns_avail * sizeof(addr[0]))) + goto out_err; } *pack->ptr++ = 255; |