]> git.ipfire.org Git - ipfire-2.x.git/blobdiff - src/patches/dhcpcd/01_Fix_Linux_i386_for_SECCOMP_as_it_just_uses_socketcall.patch
Revert "dhcpcd: Update to 9.4.0"
[ipfire-2.x.git] / src / patches / dhcpcd / 01_Fix_Linux_i386_for_SECCOMP_as_it_just_uses_socketcall.patch
diff --git a/src/patches/dhcpcd/01_Fix_Linux_i386_for_SECCOMP_as_it_just_uses_socketcall.patch b/src/patches/dhcpcd/01_Fix_Linux_i386_for_SECCOMP_as_it_just_uses_socketcall.patch
new file mode 100644 (file)
index 0000000..9efcde2
--- /dev/null
@@ -0,0 +1,36 @@
+diff --git a/src/privsep-linux.c b/src/privsep-linux.c
+index 050a30cf..d31d720d 100644
+--- a/src/privsep-linux.c
++++ b/src/privsep-linux.c
+@@ -32,6 +32,7 @@
+ #include <linux/audit.h>
+ #include <linux/filter.h>
++#include <linux/net.h>
+ #include <linux/seccomp.h>
+ #include <linux/sockios.h>
+@@ -304,6 +305,23 @@ static struct sock_filter ps_seccomp_filter[] = {
+ #ifdef __NR_sendto
+       SECCOMP_ALLOW(__NR_sendto),
+ #endif
++#ifdef __NR_socketcall
++      /* i386 needs this and demonstrates why SECCOMP
++       * is poor compared to OpenBSD pledge(2) and FreeBSD capsicum(4)
++       * as this is soooo tied to the kernel API which changes per arch
++       * and likely libc as well. */
++      SECCOMP_ALLOW_ARG(__NR_socketcall, 0, SYS_ACCEPT),
++      SECCOMP_ALLOW_ARG(__NR_socketcall, 0, SYS_ACCEPT4),
++      SECCOMP_ALLOW_ARG(__NR_socketcall, 0, SYS_LISTEN),
++      SECCOMP_ALLOW_ARG(__NR_socketcall, 0, SYS_GETSOCKOPT),  /* overflow */
++      SECCOMP_ALLOW_ARG(__NR_socketcall, 0, SYS_RECV),
++      SECCOMP_ALLOW_ARG(__NR_socketcall, 0, SYS_RECVFROM),
++      SECCOMP_ALLOW_ARG(__NR_socketcall, 0, SYS_RECVMSG),
++      SECCOMP_ALLOW_ARG(__NR_socketcall, 0, SYS_SEND),
++      SECCOMP_ALLOW_ARG(__NR_socketcall, 0, SYS_SENDMSG),
++      SECCOMP_ALLOW_ARG(__NR_socketcall, 0, SYS_SENDTO),
++      SECCOMP_ALLOW_ARG(__NR_socketcall, 0, SYS_SHUTDOWN),
++#endif
+ #ifdef __NR_shutdown
+       SECCOMP_ALLOW(__NR_shutdown),
+ #endif