From: Helge Deller <deller@gmx.de>
Date: Sun, 19 Jan 2025 02:20:03 +0000 (+0100)
Subject: linux-user: netlink: Add IP_PKTINFO cmsg parsing
X-Git-Tag: v10.0.0-rc0~79^2~3
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=017fc6620f2513c1d0217289c48be4c51e0167a7;p=thirdparty%2Fqemu.git

linux-user: netlink: Add IP_PKTINFO cmsg parsing

Fixes those warnings:
 Unsupported host ancillary data: 0/8

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
---

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index a157abc40c..df8609b4d8 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -1998,6 +1998,16 @@ static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
                     (void *) &errh->offender, sizeof(errh->offender));
                 break;
             }
+            case IP_PKTINFO:
+            {
+                struct in_pktinfo *pkti = data;
+                struct target_in_pktinfo *target_pi = target_data;
+
+                __put_user(pkti->ipi_ifindex, &target_pi->ipi_ifindex);
+                target_pi->ipi_spec_dst.s_addr = pkti->ipi_spec_dst.s_addr;
+                target_pi->ipi_addr.s_addr = pkti->ipi_addr.s_addr;
+                break;
+            }
             default:
                 goto unimplemented;
             }
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index faad9147c9..86d773add7 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -2622,6 +2622,12 @@ struct target_ucred {
     abi_uint gid;
 };
 
+struct target_in_pktinfo {
+    abi_int               ipi_ifindex;
+    struct target_in_addr ipi_spec_dst;
+    struct target_in_addr ipi_addr;
+};
+
 typedef abi_int target_timer_t;
 
 #define TARGET_SIGEV_MAX_SIZE 64