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DHCPv6 IAID should be of unsigned type. It is derived from strtoul() in lease.c:read_leases() and already now interpreted as unsigned in helper.c:276 and outpacket.c:put_opt6_long(). RFC3315 (section 22.4) shows that the IAID is 4 bytes long so we do not need to go up to unsigned long.

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Signed-off-by: Dominik DL6ER <dl6er@dl6er.de>
This commit is contained in:
Dominik DL6ER
2019-10-20 18:51:52 +02:00
committed by Simon Kelley
parent 157d8cfd6a
commit 456a319775
5 changed files with 17 additions and 12 deletions
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2
src/dhcp6.c
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@@ -423,7 +423,7 @@ struct dhcp_config *config_find_by_address6(struct dhcp_config *configs, struct
}
struct dhcp_context *address6_allocate(struct dhcp_context *context, unsigned char *clid, int clid_len, int temp_addr,
int iaid, int serial, struct dhcp_netid *netids, int plain_range, struct in6_addr *ans)
unsigned int iaid, int serial, struct dhcp_netid *netids, int plain_range, struct in6_addr *ans)
{
/* Find a free address: exclude anything in use and anything allocated to
a particular hwaddr/clientid/hostname in our configuration.