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libsystemd-network: sd-ipv4ll: Wrapper to restart address aquisition after conflict

After an ipv4ll claimed address conflict occurs a new address needs
to be chosen and then the acquisition state machine needs to be
restarted.

This commit adds a function (sd_ipv4ll_restart) that clears the
previously acquired address (ll->address) and then calls the existing
sd_ipv4ll_start function to choose the new address and start the
acquisition.

Signed-off-by: Jason Reeder <jasonreeder@gmail.com>
This commit is contained in:
Jason Reeder 2017-03-31 14:23:10 -05:00
parent 765a00b98d
commit 5e25a13a05
2 changed files with 7 additions and 0 deletions

View File

@ -248,6 +248,12 @@ static int ipv4ll_pick_address(sd_ipv4ll *ll) {
return sd_ipv4ll_set_address(ll, &(struct in_addr) { addr }); return sd_ipv4ll_set_address(ll, &(struct in_addr) { addr });
} }
int sd_ipv4ll_restart(sd_ipv4ll *ll) {
ll->address = 0;
return sd_ipv4ll_start(ll);
}
#define MAC_HASH_KEY SD_ID128_MAKE(df,04,22,98,3f,ad,14,52,f9,87,2e,d1,9c,70,e2,f2) #define MAC_HASH_KEY SD_ID128_MAKE(df,04,22,98,3f,ad,14,52,f9,87,2e,d1,9c,70,e2,f2)
int sd_ipv4ll_start(sd_ipv4ll *ll) { int sd_ipv4ll_start(sd_ipv4ll *ll) {

View File

@ -47,6 +47,7 @@ int sd_ipv4ll_set_ifindex(sd_ipv4ll *ll, int interface_index);
int sd_ipv4ll_set_address(sd_ipv4ll *ll, const struct in_addr *address); int sd_ipv4ll_set_address(sd_ipv4ll *ll, const struct in_addr *address);
int sd_ipv4ll_set_address_seed(sd_ipv4ll *ll, uint64_t seed); int sd_ipv4ll_set_address_seed(sd_ipv4ll *ll, uint64_t seed);
int sd_ipv4ll_is_running(sd_ipv4ll *ll); int sd_ipv4ll_is_running(sd_ipv4ll *ll);
int sd_ipv4ll_restart(sd_ipv4ll *ll);
int sd_ipv4ll_start(sd_ipv4ll *ll); int sd_ipv4ll_start(sd_ipv4ll *ll);
int sd_ipv4ll_stop(sd_ipv4ll *ll); int sd_ipv4ll_stop(sd_ipv4ll *ll);
sd_ipv4ll *sd_ipv4ll_ref(sd_ipv4ll *ll); sd_ipv4ll *sd_ipv4ll_ref(sd_ipv4ll *ll);