git: caaa7a07fed4 - main - linux: Support IPPROTO_RAW socket option translation

The branch main has been updated by pouria:

URL: https://cgit.FreeBSD.org/src/commit/?id=caaa7a07fed4a16e753c0064482c0eaa0900607b

commit caaa7a07fed4a16e753c0064482c0eaa0900607b
Author:     Ricardo Branco <rbranco@suse.de>
AuthorDate: 2026-04-12 14:08:38 +0000
Commit:     Pouria Mousavizadeh Tehrani <pouria@FreeBSD.org>
CommitDate: 2026-04-17 07:22:39 +0000

    linux: Support IPPROTO_RAW socket option translation
    
    Handle Linux IPPROTO_RAW socket options in the Linuxulator for both
    getsockopt(2) and setsockopt(2). Detect the socket family and remap
    the level to IPPROTO_IPV6 for AF_INET6, reusing the existing option
    translators.
    
    This fixes IPV6_CHECKSUM for IPv6 raw sockets, which Linux programs
    set at level IPPROTO_RAW rather than IPPROTO_IPV6.
    
    Signed-off-by:  Ricardo Branco <rbranco@suse.de>
    PR:             294434
    Reviewed by:    pouria
    Pull-Request:   https://github.com/freebsd/freebsd-src/pull/2138
---
 sys/compat/linux/linux_socket.c | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/sys/compat/linux/linux_socket.c b/sys/compat/linux/linux_socket.c
index d971b2a7fbe7..2d20751a41aa 100644
--- a/sys/compat/linux/linux_socket.c
+++ b/sys/compat/linux/linux_socket.c
@@ -30,6 +30,7 @@
 
 #include <sys/param.h>
 #include <sys/capsicum.h>
+#include <sys/domain.h>
 #include <sys/filedesc.h>
 #include <sys/limits.h>
 #include <sys/malloc.h>
@@ -2190,6 +2191,26 @@ linux_setsockopt(struct thread *td, struct linux_setsockopt_args *args)
 		}
 		break;
 #ifdef INET6
+	case IPPROTO_RAW: {
+		struct file *fp;
+		struct socket *so;
+		int family;
+
+		error = getsock(td, args->s, &cap_setsockopt_rights, &fp);
+		if (error != 0)
+			return (error);
+		so = fp->f_data;
+		family = so->so_proto->pr_domain->dom_family;
+		fdrop(fp, td);
+
+		name = -1;
+		if (family == AF_INET6) {
+			name = linux_to_bsd_ip6_sockopt(args->optname);
+			if (name >= 0)
+				level = IPPROTO_IPV6;
+		}
+		break;
+	}
 	case IPPROTO_ICMPV6: {
 		struct icmp6_filter f;
 		int i;
@@ -2473,6 +2494,26 @@ linux_getsockopt(struct thread *td, struct linux_getsockopt_args *args)
 		}
 		break;
 #ifdef INET6
+	case IPPROTO_RAW: {
+		struct file *fp;
+		struct socket *so;
+		int family;
+
+		error = getsock(td, args->s, &cap_getsockopt_rights, &fp);
+		if (error != 0)
+			return (error);
+		so = fp->f_data;
+		family = so->so_proto->pr_domain->dom_family;
+		fdrop(fp, td);
+
+		name = -1;
+		if (family == AF_INET6) {
+			name = linux_to_bsd_ip6_sockopt(args->optname);
+			if (name >= 0)
+				level = IPPROTO_IPV6;
+		}
+		break;
+	}
 	case IPPROTO_ICMPV6: {
 		struct icmp6_filter f;
 		int i;