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| author | Joshua Oreman | 2010-05-26 23:22:03 +0200 |
|---|---|---|
| committer | Michael Brown | 2010-05-27 11:22:05 +0200 |
| commit | 905ea567534bbb67b83b2be41bfcd42209681e6a (patch) | |
| tree | 3b0147190d2b983692551c734379e96b6e6069b6 /src/net/udp | |
| parent | [build] Use weak definitions instead of weak declarations (diff) | |
| download | ipxe-905ea567534bbb67b83b2be41bfcd42209681e6a.tar.gz ipxe-905ea567534bbb67b83b2be41bfcd42209681e6a.tar.xz ipxe-905ea567534bbb67b83b2be41bfcd42209681e6a.zip | |
[dhcp] Don't consider invalid offers to be duplicates
This fixes a regression in BOOTP support; since BOOTP requests often
have the `siaddr' field set to 0.0.0.0, they would be considered
duplicates of the first zeroed-out offer slot.
Signed-off-by: Joshua Oreman <oremanj@rwcr.net>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/net/udp')
| -rw-r--r-- | src/net/udp/dhcp.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/net/udp/dhcp.c b/src/net/udp/dhcp.c index 7850fb4b8..a092a27ef 100644 --- a/src/net/udp/dhcp.c +++ b/src/net/udp/dhcp.c @@ -417,13 +417,13 @@ static void dhcp_rx_offer ( struct dhcp_session *dhcp, /* Enqueue an offer to be filled in */ for ( i = 0 ; i < DHCP_MAX_OFFERS ; i++ ) { + if ( ! dhcp->offers[i].valid ) + break; + if ( dhcp->offers[i].server.s_addr == server_id.s_addr ) { DBGC ( dhcp, " dup\n" ); return; } - - if ( ! dhcp->offers[i].valid ) - break; } if ( i == DHCP_MAX_OFFERS ) { DBGC ( dhcp, " dropped\n" ); |