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Add the ability to specify destination port in DHCP-relay mode.

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This change also removes a previous bug
where --dhcp-alternate-port would affect the port used
to relay _to_ as well as the port being listened on.
The new feature allows configuration to provide bug-for-bug
compatibility, if required. Thanks to Damian Kaczkowski
for the feature suggestion.
This commit is contained in:
Simon Kelley
2022-05-26 16:40:44 +01:00
parent f65d210012
commit a267a9e489
7 changed files with 36 additions and 7 deletions
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2
src/dhcp.c
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@@ -1121,7 +1121,7 @@ static int relay_upstream4(int iface_index, struct dhcp_packet *mess, size_t sz)
to.sa.sa_family = AF_INET;
to.in.sin_addr = relay->server.addr4;
to.in.sin_port = htons(daemon->dhcp_server_port);
to.in.sin_port = htons(relay->port);
/* Broadcasting to server. */
if (relay->server.addr4.s_addr == 0)