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* [PATCH] netlink: Set IFA_ADDRESS, not just IFA_LOCAL, while adding IPv4 addresses
@ 2023-08-23  7:38 Stefano Brivio
  0 siblings, 0 replies; only message in thread
From: Stefano Brivio @ 2023-08-23  7:38 UTC (permalink / raw)
  To: passt-dev; +Cc: David Gibson

Otherwise, we actually configure the address, but it's not usable
because no local route is added by the kernel.

Link: https://github.com/containers/podman/pull/19699
Fixes: cfe7509e5c16 ("netlink: Use struct in_addr for IPv4 addresses, not bare uint32_t")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
---
 netlink.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/netlink.c b/netlink.c
index f55f2c3..7e9caf4 100644
--- a/netlink.c
+++ b/netlink.c
@@ -629,6 +629,7 @@ int nl_addr_set(int s, unsigned int ifi, sa_family_t af,
 		memcpy(&req.set.a4.l, addr, sizeof(req.set.a4.l));
 		req.set.a4.rta_l.rta_len = rta_len;
 		req.set.a4.rta_l.rta_type = IFA_LOCAL;
+		memcpy(&req.set.a4.a, addr, sizeof(req.set.a4.a));
 		req.set.a4.rta_a.rta_len = rta_len;
 		req.set.a4.rta_a.rta_type = IFA_ADDRESS;
 	}
-- 
@@ -629,6 +629,7 @@ int nl_addr_set(int s, unsigned int ifi, sa_family_t af,
 		memcpy(&req.set.a4.l, addr, sizeof(req.set.a4.l));
 		req.set.a4.rta_l.rta_len = rta_len;
 		req.set.a4.rta_l.rta_type = IFA_LOCAL;
+		memcpy(&req.set.a4.a, addr, sizeof(req.set.a4.a));
 		req.set.a4.rta_a.rta_len = rta_len;
 		req.set.a4.rta_a.rta_type = IFA_ADDRESS;
 	}
-- 
2.39.2


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2023-08-23  7:38 [PATCH] netlink: Set IFA_ADDRESS, not just IFA_LOCAL, while adding IPv4 addresses Stefano Brivio

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