On 10/12/23 03:16, Heinrich Schuchardt wrote:
On 10/12/23 03:56, Sean Anderson wrote:
If we sent a DHCP packet and get a BOOTP response from the server, we
shouldn't try to send a DHCPREQUEST packet, since it won't be DHCPACKed.
Transition straight to BIND. This is only enabled for UNIT_TEST to avoid
bloat, since I suspect the number of BOOTP servers in the wild is
vanishingly small.

Signed-off-by: Sean Anderson <[email protected]>
---

  net/bootp.c | 6 ++++++
  1 file changed, 6 insertions(+)

diff --git a/net/bootp.c b/net/bootp.c
index 2053cce88c6..7b0f45e18a9 100644
--- a/net/bootp.c
+++ b/net/bootp.c
@@ -1073,6 +1073,11 @@ static void dhcp_handler(uchar *pkt, unsigned dest, 
struct in_addr sip,
                  CONFIG_SYS_BOOTFILE_PREFIX,
                  strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0) {
  #endif    /* CONFIG_SYS_BOOTFILE_PREFIX */
+            if (CONFIG_IS_ENABLED(UNIT_TEST) &&
+                dhcp_message_type((u8 *)bp->bp_vend) == -1) {
+                debug("got BOOTP response; transitioning to BOUND\n");
+                goto dhcp_got_bootp;

This may result in unexpected behavior when running tests against an
actual network. Please, avoid this.

What is unexpected behavior? If you get a BOOTP (not DHCP) packet, you should
behave according to the BOOTP protocol, not the DHCP protocol.

--Sean

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