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This commit is contained in:
Simon Kelley
2012-02-24 16:06:20 +00:00
parent 270dc2e199
commit c5ad4e7998
15 changed files with 758 additions and 121 deletions
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105
src/rfc3315.c
View File

@@ -19,17 +19,6 @@
#ifdef HAVE_DHCP6
static size_t outpacket_counter;
static void end_opt6(int container);
static int save_counter(int newval);
static void *expand(size_t headroom);
static int new_opt6(int opt);
static void *put_opt6(void *data, size_t len);
static void put_opt6_short(unsigned int val);
static void put_opt6_long(unsigned int val);
static void put_opt6_string(char *s);
static int dhcp6_maybe_relay(struct in6_addr *link_address, struct dhcp_netid **relay_tagsp, struct dhcp_context *context,
int interface, char *iface_name, struct in6_addr *fallback, void *inbuff, size_t sz, int is_unicast, time_t now);
static int dhcp6_no_relay(int msg_type, struct in6_addr *link_address, struct dhcp_netid *tags, struct dhcp_context *context,
@@ -55,10 +44,10 @@ size_t dhcp6_reply(struct dhcp_context *context, int interface, char *iface_name
for (vendor = daemon->dhcp_vendors; vendor; vendor = vendor->next)
vendor->netid.next = &vendor->netid;
outpacket_counter = 0;
save_counter(0);
if (dhcp6_maybe_relay(NULL, &relay_tags, context, interface, iface_name, fallback, daemon->dhcp_packet.iov_base, sz, is_unicast, now))
return outpacket_counter;
return save_counter(0);
return 0;
}
@@ -1274,12 +1263,14 @@ static int dhcp6_no_relay(int msg_type, struct in6_addr *link_address, struct dh
len += strlen(send_domain) + 1;
o = new_opt6(OPTION6_FQDN);
p = expand(len + 3);
*(p++) = fqdn_flags;
p = do_rfc1035_name(p, hostname);
if (send_domain)
p = do_rfc1035_name(p, send_domain);
*p = 0;
if ((p = expand(len + 3)))
{
*(p++) = fqdn_flags;
p = do_rfc1035_name(p, hostname);
if (send_domain)
p = do_rfc1035_name(p, send_domain);
*p = 0;
}
end_opt6(o);
}
@@ -1422,80 +1413,4 @@ static unsigned int opt6_uint(unsigned char *opt, int offset, int size)
return ret;
}
static void end_opt6(int container)
{
void *p = daemon->outpacket.iov_base + container + 2;
u16 len = outpacket_counter - container - 4 ;
PUTSHORT(len, p);
}
static int save_counter(int newval)
{
int ret = outpacket_counter;
if (newval != -1)
outpacket_counter = newval;
return ret;
}
static void *expand(size_t headroom)
{
void *ret;
if (expand_buf(&daemon->outpacket, outpacket_counter + headroom))
{
ret = daemon->outpacket.iov_base + outpacket_counter;
outpacket_counter += headroom;
return ret;
}
return NULL;
}
static int new_opt6(int opt)
{
int ret = outpacket_counter;
void *p;
if ((p = expand(4)))
{
PUTSHORT(opt, p);
PUTSHORT(0, p);
}
return ret;
}
static void *put_opt6(void *data, size_t len)
{
void *p;
if ((p = expand(len)))
memcpy(p, data, len);
return p;
}
static void put_opt6_long(unsigned int val)
{
void *p;
if ((p = expand(4)))
PUTLONG(val, p);
}
static void put_opt6_short(unsigned int val)
{
void *p;
if ((p = expand(2)))
PUTSHORT(val, p);
}
static void put_opt6_string(char *s)
{
put_opt6(s, strlen(s));
}
#endif