src/privsep-linux.c: add support for nios2 (#23)

Fix the following build failure:

privsep-linux.c:206:4: error: #error "Platform does not support seccomp filter yet"
 #  error "Platform does not support seccomp filter yet"
    ^~~~~
In file included from privsep-linux.c:36:
privsep-linux.c:213:38: error: 'SECCOMP_AUDIT_ARCH' undeclared here (not in a function); did you mean 'SECCOMP_ALLOW_ARG'?
  BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, SECCOMP_AUDIT_ARCH, 1, 0),
                                      ^~~~~~~~~~~~~~~~~~

It should be noted that AUDIT_ARCH_NIOS2 is only defined since kernel
5.2 and
https://github.com/torvalds/linux/commit/1660aac45e5b49a5ace29fb5b73254617533fcbd

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>

diff --git a/src/privsep-linux.c b/src/privsep-linux.c
index 9605cbe84f1a6cedeedd3cde677e613df74746b3..8b3632b06a8d56ff31f4a1e083513ca7d9ad6c7a 100644 (file)
--- a/src/privsep-linux.c
+++ b/src/privsep-linux.c
@@ -188,6 +188,8 @@ ps_root_sendnetlink(struct dhcpcd_ctx *ctx, int protocol, struct msghdr *msg)
 #else
 #    define SECCOMP_AUDIT_ARCH AUDIT_ARCH_NDS32BE
 #endif
+#elif defined(__nios2__)
+#  define SECCOMP_AUDIT_ARCH AUDIT_ARCH_NIOS2
 #elif defined(__powerpc64__)
 #  define SECCOMP_AUDIT_ARCH AUDIT_ARCH_PPC64
 #elif defined(__powerpc__)