From patchwork Sat May 11 16:32:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 13662429 X-Patchwork-Delegate: johannes@sipsolutions.net Received: from smtp.smtpout.orange.fr (smtp-18.smtpout.orange.fr [80.12.242.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 15A311C290; Sat, 11 May 2024 16:34:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.12.242.18 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715445256; cv=none; b=Ov0sVbvRyXBe7v0pss60LNc/MJ0VpEZqeT6ETN97YG/exeeVS6uCf9yOF1NFBV8cbF83JgtuyqpXrMB+6PX74VaIDe1qCjl5HencHR+qbaHJtCYg5aQIeJ0BnWltvVdFTbE1LRVIB06NbJZirkHUEHqsYqnI5EEDs2wwVEEj2AY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715445256; c=relaxed/simple; bh=6xUepPtYC3ErhIlctwNeg5gGvuYSj4ulAS7J+8qRDFI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=P9Ucv1kEHDY/+m0gJoZTveMlxVasog/6/ijkUqYqoVz8N6szaQeLNH8SECS6cTtJ7ZTnNd9WiagOl5WILqqRSCv4y2TFkdipmTOgkwEAiyR6lc5uGcctcc+YgQZxqAnu8K60PWn3C5uccj3SGqnzLpBeCvZkYRHeTl6qC3+B2f0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=wanadoo.fr; spf=pass smtp.mailfrom=wanadoo.fr; dkim=pass (2048-bit key) header.d=wanadoo.fr header.i=@wanadoo.fr header.b=liIzOWID; arc=none smtp.client-ip=80.12.242.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=wanadoo.fr Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=wanadoo.fr Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=wanadoo.fr header.i=@wanadoo.fr header.b="liIzOWID" Received: from localhost.localdomain ([86.243.17.157]) by smtp.orange.fr with ESMTPA id 5peUsjqa5MXQT5pejssoZh; Sat, 11 May 2024 18:33:05 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wanadoo.fr; s=t20230301; t=1715445185; bh=TvU+WlooXy0Q21dSizGCB4Cb/0JOSAxcicREnFxTifI=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=liIzOWIDjx8/YNNuXbZGPQlUWGtZWeft+8oZjli5cYFxHZXyaSZpZByNzPc9IBsLn bnn7lggOC0xKex95Hgk7+Rt/jjxEVM3kX7ZLZhUkFdCeruuZU/XirEt+DUjyobze0i p1qonssPev0W5Js3rBff9BISofoAwN6fG9JuYNY14Kl9erbccWh9qL6KI3uhb6b4TL j7HHI6BWwHZYc0q2V713AUIKf0bGkSodSlEEYa++ZgOH4v/SE6Loc5QjO1omsLjbZf QfSK/uts5OSlItfWIoIRfhywOgVQGP8HwKmKhNop3dq946uoNz3Fc44ka2VSEx89FE m05c2ECzJw3FA== X-ME-Helo: localhost.localdomain X-ME-Auth: Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= X-ME-Date: Sat, 11 May 2024 18:33:05 +0200 X-ME-IP: 86.243.17.157 From: Christophe JAILLET To: gregkh@linuxfoundation.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, johannes@sipsolutions.net, philipp.g.hortmann@gmail.com, tdavies@darkphysics.net, garyrookard@fastmail.org, straube.linux@gmail.com Cc: linux-staging@lists.linux.dev, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET Subject: [PATCH 1/3] lib80211: Handle const struct lib80211_crypto_ops in lib80211 Date: Sat, 11 May 2024 18:32:38 +0200 Message-ID: X-Mailer: git-send-email 2.45.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 lib80211_register_crypto_ops() and lib80211_unregister_crypto_ops() don't modify their "struct lib80211_crypto_ops *ops" argument. So, it can be declared as const. Doing so, some adjustments are needed to also constify some date in "struct lib80211_crypt_data", "struct lib80211_crypto_alg" and the return value of lib80211_get_crypto_ops(). Signed-off-by: Christophe JAILLET --- Compile tested only. --- drivers/staging/rtl8192e/rtllib_wx.c | 2 +- include/net/lib80211.h | 8 ++++---- net/wireless/lib80211.c | 8 ++++---- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/staging/rtl8192e/rtllib_wx.c b/drivers/staging/rtl8192e/rtllib_wx.c index fbd4ec824084..c730d921463d 100644 --- a/drivers/staging/rtl8192e/rtllib_wx.c +++ b/drivers/staging/rtl8192e/rtllib_wx.c @@ -474,7 +474,7 @@ int rtllib_wx_set_encode_ext(struct rtllib_device *ieee, int i, idx; int group_key = 0; const char *alg, *module; - struct lib80211_crypto_ops *ops; + const struct lib80211_crypto_ops *ops; struct lib80211_crypt_data **crypt; struct rtllib_security sec = { diff --git a/include/net/lib80211.h b/include/net/lib80211.h index 8b47d3a51cf8..fd0f15d87d80 100644 --- a/include/net/lib80211.h +++ b/include/net/lib80211.h @@ -92,7 +92,7 @@ struct lib80211_crypto_ops { struct lib80211_crypt_data { struct list_head list; /* delayed deletion list */ - struct lib80211_crypto_ops *ops; + const struct lib80211_crypto_ops *ops; void *priv; atomic_t refcnt; }; @@ -113,9 +113,9 @@ struct lib80211_crypt_info { int lib80211_crypt_info_init(struct lib80211_crypt_info *info, char *name, spinlock_t *lock); void lib80211_crypt_info_free(struct lib80211_crypt_info *info); -int lib80211_register_crypto_ops(struct lib80211_crypto_ops *ops); -int lib80211_unregister_crypto_ops(struct lib80211_crypto_ops *ops); -struct lib80211_crypto_ops *lib80211_get_crypto_ops(const char *name); +int lib80211_register_crypto_ops(const struct lib80211_crypto_ops *ops); +int lib80211_unregister_crypto_ops(const struct lib80211_crypto_ops *ops); +const struct lib80211_crypto_ops *lib80211_get_crypto_ops(const char *name); void lib80211_crypt_delayed_deinit(struct lib80211_crypt_info *info, struct lib80211_crypt_data **crypt); diff --git a/net/wireless/lib80211.c b/net/wireless/lib80211.c index d66a913027e0..51e31316bcb8 100644 --- a/net/wireless/lib80211.c +++ b/net/wireless/lib80211.c @@ -34,7 +34,7 @@ MODULE_LICENSE("GPL"); struct lib80211_crypto_alg { struct list_head list; - struct lib80211_crypto_ops *ops; + const struct lib80211_crypto_ops *ops; }; static LIST_HEAD(lib80211_crypto_algs); @@ -161,7 +161,7 @@ void lib80211_crypt_delayed_deinit(struct lib80211_crypt_info *info, } EXPORT_SYMBOL(lib80211_crypt_delayed_deinit); -int lib80211_register_crypto_ops(struct lib80211_crypto_ops *ops) +int lib80211_register_crypto_ops(const struct lib80211_crypto_ops *ops) { unsigned long flags; struct lib80211_crypto_alg *alg; @@ -183,7 +183,7 @@ int lib80211_register_crypto_ops(struct lib80211_crypto_ops *ops) } EXPORT_SYMBOL(lib80211_register_crypto_ops); -int lib80211_unregister_crypto_ops(struct lib80211_crypto_ops *ops) +int lib80211_unregister_crypto_ops(const struct lib80211_crypto_ops *ops) { struct lib80211_crypto_alg *alg; unsigned long flags; @@ -206,7 +206,7 @@ int lib80211_unregister_crypto_ops(struct lib80211_crypto_ops *ops) } EXPORT_SYMBOL(lib80211_unregister_crypto_ops); -struct lib80211_crypto_ops *lib80211_get_crypto_ops(const char *name) +const struct lib80211_crypto_ops *lib80211_get_crypto_ops(const char *name) { struct lib80211_crypto_alg *alg; unsigned long flags; From patchwork Sat May 11 16:32:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 13662430 X-Patchwork-Delegate: johannes@sipsolutions.net Received: from msa.smtpout.orange.fr (smtp-70.smtpout.orange.fr [80.12.242.70]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9D9C61CABF; Sat, 11 May 2024 16:34:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.12.242.70 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715445261; cv=none; b=GSIsnh2Lo9awdhqnIDUxE9FCc5TRQLPmRMQMkQ3GW2R2FMWdPjDjiGb/hiE85vOcaDVicr0kz0cfr1VCOKLzJGtWk5IHWbs9x8A56ih1Koanv5Nc8iZi829hKtj0p4Q4AJe1oLNEABKH46R90pjNIcIDxv9mLZMn3LvdUs7afUo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715445261; 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Constifying these structures moves some data to a read-only section, so increase overall security. Before: text data bss dec hex filename 7273 604 16 7893 1ed5 net/wireless/lib80211.o After: text data bss dec hex filename 7429 444 16 7889 1ed1 net/wireless/lib80211.o Signed-off-by: Christophe JAILLET --- Compile tested only. --- net/wireless/lib80211.c | 2 +- net/wireless/lib80211_crypt_ccmp.c | 2 +- net/wireless/lib80211_crypt_tkip.c | 2 +- net/wireless/lib80211_crypt_wep.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/net/wireless/lib80211.c b/net/wireless/lib80211.c index 51e31316bcb8..64c447040786 100644 --- a/net/wireless/lib80211.c +++ b/net/wireless/lib80211.c @@ -234,7 +234,7 @@ static void lib80211_crypt_null_deinit(void *priv) { } -static struct lib80211_crypto_ops lib80211_crypt_null = { +static const struct lib80211_crypto_ops lib80211_crypt_null = { .name = "NULL", .init = lib80211_crypt_null_init, .deinit = lib80211_crypt_null_deinit, diff --git a/net/wireless/lib80211_crypt_ccmp.c b/net/wireless/lib80211_crypt_ccmp.c index cca5e1cf089e..5aad139130e1 100644 --- a/net/wireless/lib80211_crypt_ccmp.c +++ b/net/wireless/lib80211_crypt_ccmp.c @@ -418,7 +418,7 @@ static void lib80211_ccmp_print_stats(struct seq_file *m, void *priv) ccmp->dot11RSNAStatsCCMPDecryptErrors); } -static struct lib80211_crypto_ops lib80211_crypt_ccmp = { +static const struct lib80211_crypto_ops lib80211_crypt_ccmp = { .name = "CCMP", .init = lib80211_ccmp_init, .deinit = lib80211_ccmp_deinit, diff --git a/net/wireless/lib80211_crypt_tkip.c b/net/wireless/lib80211_crypt_tkip.c index 5c8cdf7681e3..63e68e5e121e 100644 --- a/net/wireless/lib80211_crypt_tkip.c +++ b/net/wireless/lib80211_crypt_tkip.c @@ -705,7 +705,7 @@ static void lib80211_tkip_print_stats(struct seq_file *m, void *priv) tkip->dot11RSNAStatsTKIPLocalMICFailures); } -static struct lib80211_crypto_ops lib80211_crypt_tkip = { +static const struct lib80211_crypto_ops lib80211_crypt_tkip = { .name = "TKIP", .init = lib80211_tkip_init, .deinit = lib80211_tkip_deinit, diff --git a/net/wireless/lib80211_crypt_wep.c b/net/wireless/lib80211_crypt_wep.c index 6ab9957b8f96..3b148c7bef85 100644 --- a/net/wireless/lib80211_crypt_wep.c +++ b/net/wireless/lib80211_crypt_wep.c @@ -226,7 +226,7 @@ static void lib80211_wep_print_stats(struct seq_file *m, void *priv) seq_printf(m, "key[%d] alg=WEP len=%d\n", wep->key_idx, wep->key_len); 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Sat, 11 May 2024 18:33:15 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wanadoo.fr; s=t20230301; t=1715445195; bh=/+Vnyk4wWnOEN53vv8Rub/cXhWL4Rx9rMTvs0vfgDg0=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=LYtIxpYvbz0/6xuqRvbNnYxPfEUX0OJnpc+WarLHOIXk+rgQV+sckBP6q8m5YzYgt gfcmJetuB4jp0695j3qD803csDTnoHRQtdAs55qpbd5UQQqna1HTBRP3a4wu82j9em 2cmARqZF4kgIgEVzUsuAcuywo9vZRCqtV0GKH7C4I84TIUCYiCStO9OycjS6inr3D/ yQeSVkxIZEmuP4L5Q7ItBPkqyEJrS/JUX3Vuiig5tRcAqozV0FBoHQgaYfVU8YpkI1 8LFxtKxurjxwIPHXhY0Pav68lyiunnsBmFldKJET770kIEnf6K1H8WXXURZdPr9K16 CmPufTyU2+Jhg== X-ME-Helo: localhost.localdomain X-ME-Auth: Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= X-ME-Date: Sat, 11 May 2024 18:33:15 +0200 X-ME-IP: 86.243.17.157 From: Christophe JAILLET To: gregkh@linuxfoundation.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, johannes@sipsolutions.net, philipp.g.hortmann@gmail.com, tdavies@darkphysics.net, garyrookard@fastmail.org, straube.linux@gmail.com Cc: linux-staging@lists.linux.dev, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET Subject: [PATCH 3/3] staging: rtl8192e: Constify struct lib80211_crypto_ops Date: Sat, 11 May 2024 18:32:40 +0200 Message-ID: <81be9eb42a2339eaa7466578773945a48904d3b5.1715443223.git.christophe.jaillet@wanadoo.fr> X-Mailer: git-send-email 2.45.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Now that functions in lib80211 handle "const struct lib80211_crypto_ops", some structure can be constify as well. Constifying these structures moves some data to a read-only section, so increase overall security. Signed-off-by: Christophe JAILLET --- Compile tested only. --- drivers/staging/rtl8192e/rtllib_crypt_ccmp.c | 2 +- drivers/staging/rtl8192e/rtllib_crypt_tkip.c | 2 +- drivers/staging/rtl8192e/rtllib_crypt_wep.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c b/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c index cbb8c8dbe9b0..ce02204ac1ba 100644 --- a/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c +++ b/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c @@ -378,7 +378,7 @@ static void rtllib_ccmp_print_stats(struct seq_file *m, void *priv) ccmp->dot11rsna_stats_ccmp_decrypt_errors); } -static struct lib80211_crypto_ops rtllib_crypt_ccmp = { +static const struct lib80211_crypto_ops rtllib_crypt_ccmp = { .name = "R-CCMP", .init = rtllib_ccmp_init, .deinit = rtllib_ccmp_deinit, diff --git a/drivers/staging/rtl8192e/rtllib_crypt_tkip.c b/drivers/staging/rtl8192e/rtllib_crypt_tkip.c index 0244b524a7d4..be8060ecaecd 100644 --- a/drivers/staging/rtl8192e/rtllib_crypt_tkip.c +++ b/drivers/staging/rtl8192e/rtllib_crypt_tkip.c @@ -678,7 +678,7 @@ static void rtllib_tkip_print_stats(struct seq_file *m, void *priv) tkip->dot11RSNAStatsTKIPLocalMICFailures); } -static struct lib80211_crypto_ops rtllib_crypt_tkip = { +static const struct lib80211_crypto_ops rtllib_crypt_tkip = { .name = "R-TKIP", .init = rtllib_tkip_init, .deinit = rtllib_tkip_deinit, diff --git a/drivers/staging/rtl8192e/rtllib_crypt_wep.c b/drivers/staging/rtl8192e/rtllib_crypt_wep.c index 21c2b7666d6f..55c5199a25ea 100644 --- a/drivers/staging/rtl8192e/rtllib_crypt_wep.c +++ b/drivers/staging/rtl8192e/rtllib_crypt_wep.c @@ -209,7 +209,7 @@ static void prism2_wep_print_stats(struct seq_file *m, void *priv) seq_printf(m, "key[%d] alg=WEP len=%d\n", wep->key_idx, wep->key_len); } -static struct lib80211_crypto_ops rtllib_crypt_wep = { +static const struct lib80211_crypto_ops rtllib_crypt_wep = { .name = "R-WEP", .init = prism2_wep_init, .deinit = prism2_wep_deinit,