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n-dhcp4/lease: expose the server IP address

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This is useful for network booting.

https://github.com/nettools/n-dhcp4/pull/7
(cherry picked from commit edda3d3606)
This commit is contained in:
Lubomir Rintel 2019-11-07 14:14:32 +01:00
parent 68841b76a6
commit 435dcc3dc6
4 changed files with 17 additions and 0 deletions
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1
shared/n-dhcp4/src/libndhcp4.sym
View file

@ -34,6 +34,7 @@ global:
n_dhcp4_client_lease_ref;
n_dhcp4_client_lease_unref;
n_dhcp4_client_lease_get_yiaddr;
n_dhcp4_client_lease_get_siaddr;
n_dhcp4_client_lease_get_lifetime;
n_dhcp4_client_lease_query;
n_dhcp4_client_lease_select;

14
shared/n-dhcp4/src/n-dhcp4-c-lease.c
View file

@ -203,6 +203,20 @@ _c_public_ void n_dhcp4_client_lease_get_yiaddr(NDhcp4ClientLease *lease, struct
yiaddr->s_addr = header->yiaddr;
}
/**
* n_dhcp4_client_lease_get_siaddr() - get the server IP address
* @lease: the lease to operate on
* @siaddr: return argument for the IP address
*
* Gets the server IP address cotained in the lease. Or INADDR_ANY if the
* lease does not contain an IP address.
*/
_c_public_ void n_dhcp4_client_lease_get_siaddr(NDhcp4ClientLease *lease, struct in_addr *siaddr) {
NDhcp4Header *header = n_dhcp4_incoming_get_header(lease->message);
siaddr->s_addr = header->siaddr;
}
/**
* n_dhcp4_client_lease_get_lifetime() - get the lifetime
* @lease: the lease to operate on

1
shared/n-dhcp4/src/n-dhcp4.h
View file

@ -156,6 +156,7 @@ NDhcp4ClientLease *n_dhcp4_client_lease_ref(NDhcp4ClientLease *lease);
NDhcp4ClientLease *n_dhcp4_client_lease_unref(NDhcp4ClientLease *lease);
void n_dhcp4_client_lease_get_yiaddr(NDhcp4ClientLease *lease, struct in_addr *yiaddr);
void n_dhcp4_client_lease_get_siaddr(NDhcp4ClientLease *lease, struct in_addr *siaddr);
void n_dhcp4_client_lease_get_lifetime(NDhcp4ClientLease *lease, uint64_t *ns_lifetimep);
int n_dhcp4_client_lease_query(NDhcp4ClientLease *lease, uint8_t option, uint8_t **datap, size_t *n_datap);

1
shared/n-dhcp4/src/test-api.c
View file

@ -104,6 +104,7 @@ static void test_api_functions(void) {
(void *)n_dhcp4_client_lease_unrefp,
(void *)n_dhcp4_client_lease_unrefv,
(void *)n_dhcp4_client_lease_get_yiaddr,
(void *)n_dhcp4_client_lease_get_siaddr,
(void *)n_dhcp4_client_lease_get_lifetime,
(void *)n_dhcp4_client_lease_query,
(void *)n_dhcp4_client_lease_select,