All of lore.kernel.org
 help / color / mirror / Atom feed
From: David Howells <dhowells@redhat.com>
To: netdev@vger.kernel.org
Cc: dhowells@redhat.com, linux-afs@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH net-next 13/17] rxrpc: Merge prime_packet_security into init_connection_security
Date: Mon, 23 Nov 2020 20:11:34 +0000	[thread overview]
Message-ID: <160616229484.830164.5485017699725233871.stgit@warthog.procyon.org.uk> (raw)
In-Reply-To: <160616220405.830164.2239716599743995145.stgit@warthog.procyon.org.uk>

Merge the ->prime_packet_security() into the ->init_connection_security()
hook as they're always called together.

Signed-off-by: David Howells <dhowells@redhat.com>
---

 net/rxrpc/ar-internal.h |    2 --
 net/rxrpc/conn_client.c |    6 ------
 net/rxrpc/conn_event.c  |    4 ----
 net/rxrpc/insecure.c    |    6 ------
 net/rxrpc/rxkad.c       |   20 +++++++++++++++-----
 5 files changed, 15 insertions(+), 23 deletions(-)

diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index 0fb294725ff2..6aaa0f49dab0 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -234,8 +234,6 @@ struct rxrpc_security {
 	int (*init_connection_security)(struct rxrpc_connection *,
 					struct rxrpc_key_token *);
 
-	/* prime a connection's packet security */
-	int (*prime_packet_security)(struct rxrpc_connection *);
 
 	/* impose security on a packet */
 	int (*secure_packet)(struct rxrpc_call *,
diff --git a/net/rxrpc/conn_client.c b/net/rxrpc/conn_client.c
index 7e574c75be8e..dbea0bfee48e 100644
--- a/net/rxrpc/conn_client.c
+++ b/net/rxrpc/conn_client.c
@@ -180,10 +180,6 @@ rxrpc_alloc_client_connection(struct rxrpc_bundle *bundle, gfp_t gfp)
 	if (ret < 0)
 		goto error_1;
 
-	ret = conn->security->prime_packet_security(conn);
-	if (ret < 0)
-		goto error_2;
-
 	atomic_inc(&rxnet->nr_conns);
 	write_lock(&rxnet->conn_lock);
 	list_add_tail(&conn->proc_link, &rxnet->conn_proc_list);
@@ -203,8 +199,6 @@ rxrpc_alloc_client_connection(struct rxrpc_bundle *bundle, gfp_t gfp)
 	_leave(" = %p", conn);
 	return conn;
 
-error_2:
-	conn->security->clear(conn);
 error_1:
 	rxrpc_put_client_connection_id(conn);
 error_0:
diff --git a/net/rxrpc/conn_event.c b/net/rxrpc/conn_event.c
index 03a482ba770f..aab069701398 100644
--- a/net/rxrpc/conn_event.c
+++ b/net/rxrpc/conn_event.c
@@ -338,10 +338,6 @@ static int rxrpc_process_event(struct rxrpc_connection *conn,
 		if (ret < 0)
 			return ret;
 
-		ret = conn->security->prime_packet_security(conn);
-		if (ret < 0)
-			return ret;
-
 		spin_lock(&conn->bundle->channel_lock);
 		spin_lock_bh(&conn->state_lock);
 
diff --git a/net/rxrpc/insecure.c b/net/rxrpc/insecure.c
index cf3ecffcf424..914e2f2e2990 100644
--- a/net/rxrpc/insecure.c
+++ b/net/rxrpc/insecure.c
@@ -14,11 +14,6 @@ static int none_init_connection_security(struct rxrpc_connection *conn,
 	return 0;
 }
 
-static int none_prime_packet_security(struct rxrpc_connection *conn)
-{
-	return 0;
-}
-
 static int none_secure_packet(struct rxrpc_call *call,
 			      struct sk_buff *skb,
 			      size_t data_size,
@@ -87,7 +82,6 @@ const struct rxrpc_security rxrpc_no_security = {
 	.init				= none_init,
 	.exit				= none_exit,
 	.init_connection_security	= none_init_connection_security,
-	.prime_packet_security		= none_prime_packet_security,
 	.free_call_crypto		= none_free_call_crypto,
 	.secure_packet			= none_secure_packet,
 	.verify_packet			= none_verify_packet,
diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c
index 3057f00a6978..301894857473 100644
--- a/net/rxrpc/rxkad.c
+++ b/net/rxrpc/rxkad.c
@@ -38,6 +38,9 @@ struct rxkad_level2_hdr {
 	__be32	checksum;	/* decrypted data checksum */
 };
 
+static int rxkad_prime_packet_security(struct rxrpc_connection *conn,
+				       struct crypto_sync_skcipher *ci);
+
 /*
  * this holds a pinned cipher so that keventd doesn't get called by the cipher
  * alloc routine, but since we have it to hand, we use it to decrypt RESPONSE
@@ -130,8 +133,15 @@ static int rxkad_init_connection_security(struct rxrpc_connection *conn,
 		goto error;
 	}
 
+	ret = rxkad_prime_packet_security(conn, ci);
+	if (ret < 0)
+		goto error_ci;
+
 	conn->cipher = ci;
-	ret = 0;
+	return 0;
+
+error_ci:
+	crypto_free_sync_skcipher(ci);
 error:
 	_leave(" = %d", ret);
 	return ret;
@@ -141,7 +151,8 @@ static int rxkad_init_connection_security(struct rxrpc_connection *conn,
  * prime the encryption state with the invariant parts of a connection's
  * description
  */
-static int rxkad_prime_packet_security(struct rxrpc_connection *conn)
+static int rxkad_prime_packet_security(struct rxrpc_connection *conn,
+				       struct crypto_sync_skcipher *ci)
 {
 	struct skcipher_request *req;
 	struct rxrpc_key_token *token;
@@ -159,7 +170,7 @@ static int rxkad_prime_packet_security(struct rxrpc_connection *conn)
 	if (!tmpbuf)
 		return -ENOMEM;
 
-	req = skcipher_request_alloc(&conn->cipher->base, GFP_NOFS);
+	req = skcipher_request_alloc(&ci->base, GFP_NOFS);
 	if (!req) {
 		kfree(tmpbuf);
 		return -ENOMEM;
@@ -174,7 +185,7 @@ static int rxkad_prime_packet_security(struct rxrpc_connection *conn)
 	tmpbuf[3] = htonl(conn->security_ix);
 
 	sg_init_one(&sg, tmpbuf, tmpsize);
-	skcipher_request_set_sync_tfm(req, conn->cipher);
+	skcipher_request_set_sync_tfm(req, ci);
 	skcipher_request_set_callback(req, 0, NULL, NULL);
 	skcipher_request_set_crypt(req, &sg, &sg, tmpsize, iv.x);
 	crypto_skcipher_encrypt(req);
@@ -1350,7 +1361,6 @@ const struct rxrpc_security rxkad = {
 	.free_preparse_server_key	= rxkad_free_preparse_server_key,
 	.destroy_server_key		= rxkad_destroy_server_key,
 	.init_connection_security	= rxkad_init_connection_security,
-	.prime_packet_security		= rxkad_prime_packet_security,
 	.secure_packet			= rxkad_secure_packet,
 	.verify_packet			= rxkad_verify_packet,
 	.free_call_crypto		= rxkad_free_call_crypto,



  parent reply	other threads:[~2020-11-23 20:12 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-23 20:10 [PATCH net 00/17] rxrpc: Prelude to gssapi support David Howells
2020-11-23 20:10 ` [PATCH net-next 01/17] keys: Provide the original description to the key preparser David Howells
2020-11-23 20:10 ` [PATCH net-next 02/17] rxrpc: Remove the rxk5 security class as it's now defunct David Howells
2020-11-23 20:10 ` [PATCH net-next 03/17] rxrpc: List the held token types in the key description in /proc/keys David Howells
2020-11-23 20:10 ` [PATCH net-next 04/17] rxrpc: Support keys with multiple authentication tokens David Howells
2020-11-23 20:10 ` [PATCH net-next 05/17] rxrpc: Don't retain the server key in the connection David Howells
2020-11-23 20:10 ` [PATCH net-next 06/17] rxrpc: Split the server key type (rxrpc_s) into its own file David Howells
2020-11-23 20:10 ` [PATCH net-next 07/17] rxrpc: Hand server key parsing off to the security class David Howells
2020-11-23 20:11 ` [PATCH net-next 08/17] rxrpc: Don't leak the service-side session key to userspace David Howells
2020-11-23 20:11 ` [PATCH net-next 09/17] rxrpc: Allow security classes to give more info on server keys David Howells
2020-11-23 20:11 ` [PATCH net-next 10/17] rxrpc: Make the parsing of xdr payloads more coherent David Howells
2020-11-23 20:11 ` [PATCH net-next 11/17] rxrpc: Ignore unknown tokens in key payload unless no known tokens David Howells
2020-11-23 20:11 ` [PATCH net-next 12/17] rxrpc: Fix example key name in a comment David Howells
2020-11-23 20:11 ` David Howells [this message]
2020-11-23 20:11 ` [PATCH net-next 14/17] rxrpc: Don't reserve security header in Tx DATA skbuff David Howells
2020-11-23 20:11 ` [PATCH net-next 15/17] rxrpc: Organise connection security to use a union David Howells
2020-11-23 20:25   ` Joe Perches
2020-11-23 21:08   ` David Howells
2020-11-23 20:11 ` [PATCH net-next 16/17] rxrpc: rxkad: Don't use pskb_pull() to advance through the response packet David Howells
2020-11-23 20:12 ` [PATCH net-next 17/17] rxrpc: Ask the security class how much space to allow in a packet David Howells
2020-11-24 20:08 ` [PATCH net 00/17] rxrpc: Prelude to gssapi support Jakub Kicinski

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=160616229484.830164.5485017699725233871.stgit@warthog.procyon.org.uk \
    --to=dhowells@redhat.com \
    --cc=linux-afs@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.