uapi: update kernel headers to 5.11 pre rc1

[mirror_iproute2.git] / include / uapi / linux / if_alg.h

diff --git a/include/uapi/linux/if_alg.h b/include/uapi/linux/if_alg.h
index 60b7c2efd921c1144e5aba9d9acec137aced2a29..dc52a11ba6d1585d44cb2351ff7268299885ba81 100644 (file)
--- a/include/uapi/linux/if_alg.h
+++ b/include/uapi/linux/if_alg.h
@@ -24,6 +24,22 @@ struct sockaddr_alg {
        __u8    salg_name[64];
 };
 
+/*
+ * Linux v4.12 and later removed the 64-byte limit on salg_name[]; it's now an
+ * arbitrary-length field.  We had to keep the original struct above for source
+ * compatibility with existing userspace programs, though.  Use the new struct
+ * below if support for very long algorithm names is needed.  To do this,
+ * allocate 'sizeof(struct sockaddr_alg_new) + strlen(algname) + 1' bytes, and
+ * copy algname (including the null terminator) into salg_name.
+ */
+struct sockaddr_alg_new {
+       __u16   salg_family;
+       __u8    salg_type[14];
+       __u32   salg_feat;
+       __u32   salg_mask;
+       __u8    salg_name[];
+};
+
 struct af_alg_iv {
        __u32   ivlen;
        __u8    iv[0];