aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/include/uapi/linux/if_alg.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/uapi/linux/if_alg.h')
-rw-r--r--include/uapi/linux/if_alg.h25
1 files changed, 21 insertions, 4 deletions
diff --git a/include/uapi/linux/if_alg.h b/include/uapi/linux/if_alg.h
index 60b7c2efd921..b35871cbeed7 100644
--- a/include/uapi/linux/if_alg.h
+++ b/include/uapi/linux/if_alg.h
@@ -11,8 +11,8 @@
*
*/
-#ifndef _LINUX_IF_ALG_H
-#define _LINUX_IF_ALG_H
+#ifndef _UAPI_LINUX_IF_ALG_H
+#define _UAPI_LINUX_IF_ALG_H
#include <linux/types.h>
@@ -24,9 +24,25 @@ 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];
+ __u8 iv[];
};
/* Socket options */
@@ -36,9 +52,10 @@ struct af_alg_iv {
#define ALG_SET_AEAD_ASSOCLEN 4
#define ALG_SET_AEAD_AUTHSIZE 5
#define ALG_SET_DRBG_ENTROPY 6
+#define ALG_SET_KEY_BY_KEY_SERIAL 7
/* Operations */
#define ALG_OP_DECRYPT 0
#define ALG_OP_ENCRYPT 1
-#endif /* _LINUX_IF_ALG_H */
+#endif /* _UAPI_LINUX_IF_ALG_H */