From patchwork Mon Aug 5 06:40:37 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 817023 Received: from smtp.smtpout.orange.fr (smtp-22.smtpout.orange.fr [80.12.242.22]) (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 7ABC514386C for ; Mon, 5 Aug 2024 06:42:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.12.242.22 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722840131; cv=none; b=c2dApGP6XFZGQaMHaiTIXkslPlnz0GjGFbFSTEYEvlxUg656Vf8q2SJYM9Snv7UaNGwHdiLF1pbM7F/2CxVnoCBphZnnJe+oPV3oR54a8J08mTVaBDO2cvQVC3/FI8kVC3X0/sczdE8LgsFJmHObfCOH5tjwLXoElmQ4W8Fprss= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722840131; c=relaxed/simple; bh=FOxLg/rjd+wx2gGUg26Wm5kTSqi5cfymcYGSwAhPckE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=eWz8/v/BzJT3ke4h2uiyq0cQIB3NTMeqethvT2ytvQktygCwd3cz6grwNGbISHk6IKOWzSmpJn31L3K7rORhNkX12iNxNuZ6BzsgViY3OQ9Ud5UIw8NE66xUibD2bz3glU9Sv6umi2z2K10WOE/ounD0RfcnpeJwm0BbOxDZJNY= 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=hoWU7ZkO; arc=none smtp.client-ip=80.12.242.22 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="hoWU7ZkO" Received: from fedora.home ([90.11.132.44]) by smtp.orange.fr with ESMTPA id arOns5eD41n2IarOysUUU1; Mon, 05 Aug 2024 08:41:05 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wanadoo.fr; s=t20230301; t=1722840065; bh=BTMGc4u3HwGHSgbua/br9tG9eY8eSlRj2fRBlapv5XQ=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=hoWU7ZkOdBOFpDQo3fOvMRWc35GG2wcIDzG5LTLNRtGsWVyjsz7c9oHoBbTGrCBgY hIjitd8nHnAlqknNUyBpozmaq7SMxxBOLsvyJ89V+CJWzrAvyMQhT5WMMInw5f3tqr Vq8nj6fvxp9EYj0vEiBR7erIp1Gh9CHv3jU65s8y3/4in/51F92q7kPvnYVO7Y9f0p EL7wWzpesIOHgLjHExDH1KI8umY+GFtPNXOz86l1riwNTRnxL5+ucrgEgngeeZZunN yh9+KSJvypK8GFo9q6NFpDiZ4K/u85ojHtJQsMzR2P2dvo9EfVyD8SIJr/XZkB4UHJ GkwbZ3QQvZmjA== X-ME-Helo: fedora.home X-ME-Auth: Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= X-ME-Date: Mon, 05 Aug 2024 08:41:05 +0200 X-ME-IP: 90.11.132.44 From: Christophe JAILLET To: stas.yakovlev@gmail.com, kvalo@kernel.org, gregkh@linuxfoundation.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, linux-staging@lists.linux.dev, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET Subject: [PATCH v2 1/3] lib80211: Handle const struct lib80211_crypto_ops in lib80211 Date: Mon, 5 Aug 2024 08:40:37 +0200 Message-ID: X-Mailer: git-send-email 2.45.2 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 Reviewed-by: Simon Horman --- Compile tested only. Changes in v2: - Update ipw2x00/libipw_wx.c as well [Simon Horman] v1: https://lore.kernel.org/all/d6306f7c76015653e9539ddbcd1ed74d1681a98f.1715443223.git.christophe.jaillet@wanadoo.fr/ --- drivers/net/wireless/intel/ipw2x00/libipw_wx.c | 2 +- drivers/staging/rtl8192e/rtllib_wx.c | 2 +- include/net/lib80211.h | 8 ++++---- net/wireless/lib80211.c | 8 ++++---- 4 files changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/net/wireless/intel/ipw2x00/libipw_wx.c b/drivers/net/wireless/intel/ipw2x00/libipw_wx.c index 903de34028ef..dbc7153d0a3d 100644 --- a/drivers/net/wireless/intel/ipw2x00/libipw_wx.c +++ b/drivers/net/wireless/intel/ipw2x00/libipw_wx.c @@ -509,7 +509,7 @@ int libipw_wx_set_encodeext(struct libipw_device *ieee, int i, idx, ret = 0; 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 libipw_security sec = { 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 Mon Aug 5 06:40:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 817024 Received: from smtp.smtpout.orange.fr (smtp-22.smtpout.orange.fr [80.12.242.22]) (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 6421E149E01 for ; 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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 Reviewed-by: Simon Horman --- Compile tested only. Changes in v2 - No changes v1: https://lore.kernel.org/all/a1f822093dbd01f39d9afb931bece744273b8b9d.1715443223.git.christophe.jaillet@wanadoo.fr/ --- 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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Mon, 05 Aug 2024 08:41:25 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wanadoo.fr; s=t20230301; t=1722840085; bh=fZnfV4gskIqv87dNYmFTGpAnTyJ6Dtl1w8GxFk9Ipsc=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=leducTY+nH174RYYnTi12fdGoxirXsmTUaoCHwknPPZws/E+6h0HBDwuc1Mtkcqjw C7U6juRV53WE3+xrABBaxXptE2+ZzEyMiII2Gp3cn/GTVvv3sN3LDuKlDbyX4jKHA5 aGgDFHBbyTyGmGUPWY1YDoGz8vmVtoD6nNIr6p5VBCpCKJsLRR+gfl8gkg9WB6NaLe u8qUjB4ULngW2vz6aSxZTrunRjI7xEWb+xqznSPk11OQWaocEzZ0VpDPAfVPV8Rwur Q59OTLkzCtflgywuy296JcDEzY58E6o44Hy4ASu3RNnlt4Dz26olSGTxBSlXTHzofu EyL6pslWfeUXw== X-ME-Helo: fedora.home X-ME-Auth: Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= X-ME-Date: Mon, 05 Aug 2024 08:41:25 +0200 X-ME-IP: 90.11.132.44 From: Christophe JAILLET To: stas.yakovlev@gmail.com, kvalo@kernel.org, gregkh@linuxfoundation.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, johannes@sipsolutions.net Cc: linux-wireless@vger.kernel.org, linux-staging@lists.linux.dev, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET Subject: [PATCH v2 3/3] staging: rtl8192e: Constify struct lib80211_crypto_ops Date: Mon, 5 Aug 2024 08:40:39 +0200 Message-ID: X-Mailer: git-send-email 2.45.2 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 constified as well. Constifying these structures moves some data to a read-only section, so increase overall security. Signed-off-by: Christophe JAILLET Acked-by: Greg Kroah-Hartman --- Compile tested only. Changes in v2: - No changes v1: https://lore.kernel.org/all/81be9eb42a2339eaa7466578773945a48904d3b5.1715443223.git.christophe.jaillet@wanadoo.fr/ --- 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 639877069fad..138733cb00e2 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 dc0917b03511..74dc8326c886 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 10092f6884ff..aa18c060d727 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,