dhcpcd fails to open address specific socket after binding #501
Description
It fails the check at src/dhcp.c:2384 and never calls dhcp_openudp(). Possibly due to the interface already being configured (NFS root device).
if (ctx->options & DHCPCD_MANAGER ||
ifp->options->options & DHCPCD_STATIC ||
(state->old != NULL &&
state->old->yiaddr == state->new->yiaddr) ||
(old_state & STATE_ADDED && !(old_state & STATE_FAKE)))
return;
It'll then spin trying to renew until rebind time.
eth0: executing: /lib/dhcpcd/dhcpcd-run-hooks PREINIT
eth0: executing: /lib/dhcpcd/dhcpcd-run-hooks CARRIER
eth0: IAID b4:00:b1:b4
eth0: delaying IPv4 for 0.8 seconds
eth0: reading lease: /var/lib/dhcpcd/eth0.lease
eth0: rebinding lease of 192.168.21.242
eth0: sending REQUEST (xid 0xf7553edb), next in 3.2 seconds
eth0: acknowledged 192.168.21.242 from 192.168.21.45
eth0: leased 192.168.21.242 for 86400 seconds
eth0: renew in 43200 seconds, rebind in 75600 seconds
eth0: writing lease: /var/lib/dhcpcd/eth0.lease
eth0: executing: /lib/dhcpcd/dhcpcd-run-hooks REBOOT
received SIGUSR1, renewing
eth0: renewing lease of 192.168.21.242
eth0: sending REQUEST (xid 0x4fd6b5b7), next in 3.8 seconds
eth0: sending REQUEST (xid 0x4fd6b5b7), next in 7.3 seconds
eth0: sending REQUEST (xid 0x4fd6b5b7), next in 16.2 seconds
eth0: sending REQUEST (xid 0x4fd6b5b7), next in 32.3 seconds
eth0: sending REQUEST (xid 0x4fd6b5b7), next in 64.9 seconds
The IP is obviously the same, making me think the IP check was meant to be combined with the old_state, and that seems to work, but I don't understand the code enough to ensure that won't break something else.
ctx->options = 291186172747062285 (0)
ifp->options->options = 291467372812311561 (0)
state->old->yiaddr = 4061505728, state->new->yiaddr = 4061505728
old_state = 3 (0)