Pi-Hole/dnsmasq
1
0
Fork 0
mirror of https://github.com/pi-hole/dnsmasq.git synced 2025-12-19 18:28:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

DHCPv6 vendor class option includes an enterprise number. Handle that.

Browse Source
This commit is contained in:
Simon Kelley
2012-02-10 13:42:47 +00:00
parent ceae00dddf
commit a5c72ab51d
4 changed files with 51 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
src/rfc3315.c
View File

@@ -269,7 +269,20 @@ static int dhcp6_no_relay(int msg_type, struct dhcp_netid *tags, struct dhcp_con
if ((opt = opt6_find(packet_options, end, mopt, 2)))
{
void *enc_opt, *enc_end = opt6_ptr(opt, opt6_len(opt));
for (enc_opt = opt6_ptr(opt, 0); enc_opt; enc_opt = opt6_next(enc_opt, enc_end))
int offset = 0;
if (mopt == OPTION6_VENDOR_CLASS)
{
if (opt6_len(opt) < 4)
continue;
if (vendor->enterprise != opt6_uint(opt, 0, 4))
continue;
offset = 4;
}
for (enc_opt = opt6_ptr(opt, offset); enc_opt; enc_opt = opt6_next(enc_opt, enc_end))
for (i = 0; i <= (opt6_len(enc_opt) - vendor->len); i++)
if (memcmp(vendor->data, opt6_ptr(enc_opt, i), vendor->len) == 0)
{
@@ -620,14 +633,20 @@ static int dhcp6_no_relay(int msg_type, struct dhcp_netid *tags, struct dhcp_con
lease->extradata_size = lease->extradata_len = 0;
lease->hwaddr_len = 0; /* surrogate for no of vendor classes */
if ((class_opt = opt6_find(packet_options, end, OPTION6_VENDOR_CLASS, 2)))
if ((class_opt = opt6_find(packet_options, end, OPTION6_VENDOR_CLASS, 4)))
{
void *enc_opt, *enc_end = opt6_ptr(class_opt, opt6_len(class_opt));
for (enc_opt = opt6_ptr(class_opt, 0); enc_opt; enc_opt = opt6_next(enc_opt, enc_end))
{
lease->hwaddr_len++;
lease_add_extradata(lease, opt6_ptr(enc_opt, 0), opt6_len(enc_opt), 0);
}
lease->hwaddr_len++;
/* send enterprise number first */
sprintf(daemon->dhcp_buff2, "%u", opt6_uint(class_opt, 0, 4));
lease_add_extradata(lease, (unsigned char *)daemon->dhcp_buff2, strlen(daemon->dhcp_buff2), 0);
if (opt6_len(class_opt) >= 6)
for (enc_opt = opt6_ptr(class_opt, 4); enc_opt; enc_opt = opt6_next(enc_opt, enc_end))
{
lease->hwaddr_len++;
lease_add_extradata(lease, opt6_ptr(enc_opt, 0), opt6_len(enc_opt), 0);
}
}
lease_add_extradata(lease, (unsigned char *)client_hostname,