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dhcp6: Add function to iterate and fetch delegated prefixes

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Add a function for fetching the next delegated prefix and another
one to reset the iteration to the first prefix.
This commit is contained in:
Patrik Flykt 2018-01-04 15:11:54 +02:00
parent 819c56f6fa
commit 652bf04254
3 changed files with 37 additions and 0 deletions
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1
src/libsystemd-network/dhcp6-lease-internal.h
View File

@ -39,6 +39,7 @@ struct sd_dhcp6_lease {
DHCP6IA pd;
DHCP6Address *addr_iter;
DHCP6Address *prefix_iter;
struct in6_addr *dns;
size_t dns_count;

31
src/libsystemd-network/sd-dhcp6-lease.c
View File

@ -176,6 +176,37 @@ void sd_dhcp6_lease_reset_address_iter(sd_dhcp6_lease *lease) {
lease->addr_iter = lease->ia.addresses;
}
int sd_dhcp6_lease_get_pd(sd_dhcp6_lease *lease, struct in6_addr *prefix,
uint8_t *prefix_len,
uint32_t *lifetime_preferred,
uint32_t *lifetime_valid) {
assert_return(lease, -EINVAL);
assert_return(prefix, -EINVAL);
assert_return(prefix_len, -EINVAL);
assert_return(lifetime_preferred, -EINVAL);
assert_return(lifetime_valid, -EINVAL);
if (!lease->prefix_iter)
return -ENOMSG;
memcpy(prefix, &lease->prefix_iter->iapdprefix.address,
sizeof(struct in6_addr));
*prefix_len = lease->prefix_iter->iapdprefix.prefixlen;
*lifetime_preferred =
be32toh(lease->prefix_iter->iapdprefix.lifetime_preferred);
*lifetime_valid =
be32toh(lease->prefix_iter->iapdprefix.lifetime_valid);
lease->prefix_iter = lease->prefix_iter->addresses_next;
return 0;
}
void sd_dhcp6_lease_reset_pd_prefix_iter(sd_dhcp6_lease *lease) {
if (lease)
lease->prefix_iter = lease->pd.addresses;
}
int dhcp6_lease_set_dns(sd_dhcp6_lease *lease, uint8_t *optval, size_t optlen) {
int r;

5
src/systemd/sd-dhcp6-lease.h
View File

@ -36,6 +36,11 @@ int sd_dhcp6_lease_get_address(sd_dhcp6_lease *lease,
struct in6_addr *addr,
uint32_t *lifetime_preferred,
uint32_t *lifetime_valid);
void sd_dhcp6_lease_reset_pd_prefix_iter(sd_dhcp6_lease *lease);
int sd_dhcp6_lease_get_pd(sd_dhcp6_lease *lease, struct in6_addr *prefix,
uint8_t *prefix_len,
uint32_t *lifetime_preferred,
uint32_t *lifetime_valid);
int sd_dhcp6_lease_get_dns(sd_dhcp6_lease *lease, struct in6_addr **addrs);
int sd_dhcp6_lease_get_domains(sd_dhcp6_lease *lease, char ***domains);