commit 017fc6620f2513c1d0217289c48be4c51e0167a7
author Helge Deller <deller@gmx.de> Sun Jan 19 03:20:03 2025 +0100
committer Helge Deller <deller@gmx.de> Fri Jan 24 13:58:40 2025 +0100
tree 812c93b92dc627fd34218116105875d6904323a2
parent b97f8d1fa5f783d1ff436b52b29612ecb8793f93

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>

linux-user/syscall.c

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index a157abc..df8609b 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -1998,6 +1998,16 @@
                     (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;
             }

linux-user/syscall_defs.h

diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index faad914..86d773a 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -2622,6 +2622,12 @@
     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