[PATCH 09/27] netlink: decode crypto_user_alg attributes of CRYPTOCFGA_REPORT_HASH
JingPiao Chen
chenjingpiao at gmail.com
Sat Jul 22 12:43:39 UTC 2017
* configure.ac (AC_CHECK_TYPES): Add struct crypto_report_hash.
* netlink_crypto.c (decode_crypto_report_hash): New function.
(crypto_user_alg_nla_decoders): Add CRYPTOCFGA_REPORT_HASH.
---
configure.ac | 1 +
netlink_crypto.c | 27 ++++++++++++++++++++++++++-
2 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 99d2c6e..0a0625f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -321,6 +321,7 @@ AC_CHECK_TYPES(m4_normalize([
#include <linux/fcntl.h>])
AC_CHECK_TYPES(m4_normalize([
+ struct crypto_report_hash,
struct crypto_report_larval
]),,, [#include <linux/cryptouser.h>])
diff --git a/netlink_crypto.c b/netlink_crypto.c
index 9a9635b..9bde8a5 100644
--- a/netlink_crypto.c
+++ b/netlink_crypto.c
@@ -59,9 +59,34 @@ decode_crypto_report_larval(struct tcb *const tcp,
return true;
}
+static bool
+decode_crypto_report_hash(struct tcb *const tcp,
+ const kernel_ulong_t addr,
+ const unsigned int len,
+ const void *const opaque_data)
+{
+# ifdef HAVE_STRUCT_CRYPTO_REPORT_HASH
+ struct crypto_report_hash rhash;
+
+ if (len < sizeof(rhash))
+ printstrn(tcp, addr, len);
+ else if (!umove_or_printaddr(tcp, addr, &rhash)) {
+ PRINT_FIELD_CSTRING("{", rhash, type);
+ PRINT_FIELD_U(", ", rhash, blocksize);
+ PRINT_FIELD_U(", ", rhash, digestsize);
+ tprints("}");
+ }
+# else
+ printstrn(tcp, addr, len);
+# endif
+
+ return true;
+}
+
static const nla_decoder_t crypto_user_alg_nla_decoders[] = {
[CRYPTOCFGA_PRIORITY_VAL] = decode_nla_u32,
- [CRYPTOCFGA_REPORT_LARVAL] = decode_crypto_report_larval
+ [CRYPTOCFGA_REPORT_LARVAL] = decode_crypto_report_larval,
+ [CRYPTOCFGA_REPORT_HASH] = decode_crypto_report_hash
};
static void
--
2.7.4
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