From patchwork Thu Sep 29 20:36:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Enzo Matsumiya X-Patchwork-Id: 12994600 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C8FFC433FE for ; Thu, 29 Sep 2022 20:37:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229666AbiI2UhO (ORCPT ); Thu, 29 Sep 2022 16:37:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43518 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229585AbiI2UhN (ORCPT ); Thu, 29 Sep 2022 16:37:13 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B3120132FC9 for ; Thu, 29 Sep 2022 13:37:12 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 4D3671F38D; Thu, 29 Sep 2022 20:37:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1664483831; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=9F2Pc2aXi6tZ14w54OVBFKWYmeZNdLX5//SNOb7X1HE=; b=tqy8rVLLdOWE5Bb7obf9ofEVDpO+zmWUlBnu2kEdFYQUNVrHikWWqtBYlRGM8aIms7rs7Y JXqUNPV9Y/VTUo2n4YALBIH8BAFVOY1VgLsv4RisaPJmZgUw0uokpHfAyPuOi+u5FRH50p mNpWc0gqwaeYIoHpft203rGr2t4Ta1U= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1664483831; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=9F2Pc2aXi6tZ14w54OVBFKWYmeZNdLX5//SNOb7X1HE=; b=dNvezTviE4r82aPYa/zp/cefVWLvC8ztRRSKSxeaAhYWYuHcaHYZcLzhttGPpFK6+6vSOh OiEstTTHteoLQzCA== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id C3F6C1348E; Thu, 29 Sep 2022 20:37:10 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id FG9MIfYBNmPxTAAAMHmgww (envelope-from ); Thu, 29 Sep 2022 20:37:10 +0000 From: Enzo Matsumiya To: linux-cifs@vger.kernel.org Cc: smfrench@gmail.com, pc@cjr.nz, ronniesahlberg@gmail.com, nspmangalore@gmail.com, tom@talpey.com, metze@samba.org Subject: [PATCH v4 7/8] cifs: show signing algorithm name in DebugData Date: Thu, 29 Sep 2022 17:36:52 -0300 Message-Id: <20220929203652.13178-5-ematsumiya@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20220929203652.13178-1-ematsumiya@suse.de> References: <20220929203652.13178-1-ematsumiya@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org Add smb2_signing_algo_str() helper in smb2glob.h Show the algorithm name in DebugData, when signing is enabled. Signed-off-by: Enzo Matsumiya --- fs/cifs/cifs_debug.c | 7 +++++-- fs/cifs/smb2glob.h | 10 ++++++++++ fs/cifs/smb2pdu.c | 4 ++-- 3 files changed, 17 insertions(+), 4 deletions(-) diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index c05477e28cff..86a5fb93f07f 100644 --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -13,6 +13,7 @@ #include #include "cifspdu.h" #include "cifsglob.h" +#include "smb2glob.h" #include "cifsproto.h" #include "cifs_debug.h" #include "cifsfs.h" @@ -354,7 +355,8 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v) else if (server->compress_algorithm == SMB3_COMPRESS_LZ77_HUFF) seq_printf(m, " COMPRESS_LZ77_HUFF"); if (server->sign) - seq_printf(m, " signed"); + seq_printf(m, " signed (%s)", + smb2_signing_algo_str(server->signing_algorithm)); if (server->posix_ext_supported) seq_printf(m, " posix"); if (server->nosharesock) @@ -405,7 +407,8 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v) if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA) seq_puts(m, " encrypted"); if (ses->sign) - seq_puts(m, " signed"); + seq_printf(m, " signed (%s)", + smb2_signing_algo_str(server->signing_algorithm)); seq_printf(m, "\n\tUser: %d Cred User: %d", from_kuid(&init_user_ns, ses->linux_uid), diff --git a/fs/cifs/smb2glob.h b/fs/cifs/smb2glob.h index 82e916ad167c..3a3e81b1b8cb 100644 --- a/fs/cifs/smb2glob.h +++ b/fs/cifs/smb2glob.h @@ -41,4 +41,14 @@ #define END_OF_CHAIN 4 #define RELATED_REQUEST 8 +static inline const char *smb2_signing_algo_str(u16 algo) +{ + switch (algo) { + case SIGNING_ALG_HMAC_SHA256: return "HMAC-SHA256"; + case SIGNING_ALG_AES_CMAC: return "AES-CMAC"; + case SIGNING_ALG_AES_GMAC: return "AES-GMAC"; + default: return "unknown algorithm"; + } +} + #endif /* _SMB2_GLOB_H */ diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 785465873422..97dac970cd52 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -725,8 +725,8 @@ static void decode_signing_ctx(struct TCP_Server_Info *server, server->signing_negotiated = true; server->signing_algorithm = le16_to_cpu(pctxt->SigningAlgorithms[0]); - cifs_dbg(FYI, "signing algorithm %d chosen\n", - server->signing_algorithm); + cifs_dbg(FYI, "negotiated signing algorithm '%s'\n", + smb2_signing_algo_str(server->signing_algorithm)); }