diff options
Diffstat (limited to 'drivers/net/ppp')
| -rw-r--r-- | drivers/net/ppp/Kconfig | 3 | ||||
| -rw-r--r-- | drivers/net/ppp/ppp_async.c | 6 | ||||
| -rw-r--r-- | drivers/net/ppp/ppp_deflate.c | 5 | ||||
| -rw-r--r-- | drivers/net/ppp/ppp_generic.c | 6 | ||||
| -rw-r--r-- | drivers/net/ppp/ppp_mppe.c | 97 | ||||
| -rw-r--r-- | drivers/net/ppp/ppp_synctty.c | 6 | ||||
| -rw-r--r-- | drivers/net/ppp/pppoe.c | 7 | ||||
| -rw-r--r-- | drivers/net/ppp/pppox.c | 7 | ||||
| -rw-r--r-- | drivers/net/ppp/pptp.c | 7 |
9 files changed, 22 insertions, 122 deletions
diff --git a/drivers/net/ppp/Kconfig b/drivers/net/ppp/Kconfig index bf395df3bb37..1a2e2f7629f3 100644 --- a/drivers/net/ppp/Kconfig +++ b/drivers/net/ppp/Kconfig @@ -87,8 +87,7 @@ config PPP_MPPE depends on PPP select CRYPTO select CRYPTO_SHA1 - select CRYPTO_ARC4 - select CRYPTO_ECB + select CRYPTO_LIB_ARC4 ---help--- Support for the MPPE Encryption protocol, as employed by the Microsoft Point-to-Point Tunneling Protocol. diff --git a/drivers/net/ppp/ppp_async.c b/drivers/net/ppp/ppp_async.c index b287bb811875..a7b9cf3269bf 100644 --- a/drivers/net/ppp/ppp_async.c +++ b/drivers/net/ppp/ppp_async.c @@ -1,13 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * PPP async serial channel driver for Linux. * * Copyright 1999 Paul Mackerras. * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * * This driver provides the encapsulation and framing for sending * and receiving PPP frames over async serial lines. It relies on * the generic PPP layer to give it frames to send and to process diff --git a/drivers/net/ppp/ppp_deflate.c b/drivers/net/ppp/ppp_deflate.c index 685e875f5164..c457f849e553 100644 --- a/drivers/net/ppp/ppp_deflate.c +++ b/drivers/net/ppp/ppp_deflate.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ppp_deflate.c - interface the zlib procedures for Deflate compression * and decompression (as used by gzip) to the PPP code. * * Copyright 1994-1998 Paul Mackerras. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. */ #include <linux/module.h> diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c index c708400fff4a..a30e41a56085 100644 --- a/drivers/net/ppp/ppp_generic.c +++ b/drivers/net/ppp/ppp_generic.c @@ -1,13 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Generic PPP layer for Linux. * * Copyright 1999-2002 Paul Mackerras. * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * * The generic PPP layer handles the PPP network interfaces, the * /dev/ppp device, packet and VJ compression, and multilink. * It talks to PPP `channels' via the interface defined in diff --git a/drivers/net/ppp/ppp_mppe.c b/drivers/net/ppp/ppp_mppe.c index ff61dd8748de..de3b57d09d0c 100644 --- a/drivers/net/ppp/ppp_mppe.c +++ b/drivers/net/ppp/ppp_mppe.c @@ -42,9 +42,10 @@ * deprecated in 2.6 */ +#include <crypto/arc4.h> #include <crypto/hash.h> -#include <crypto/skcipher.h> #include <linux/err.h> +#include <linux/fips.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> @@ -65,13 +66,6 @@ MODULE_LICENSE("Dual BSD/GPL"); MODULE_ALIAS("ppp-compress-" __stringify(CI_MPPE)); MODULE_VERSION("1.0.2"); -static unsigned int -setup_sg(struct scatterlist *sg, const void *address, unsigned int length) -{ - sg_set_buf(sg, address, length); - return length; -} - #define SHA1_PAD_SIZE 40 /* @@ -95,7 +89,7 @@ static inline void sha_pad_init(struct sha_pad *shapad) * State for an MPPE (de)compressor. */ struct ppp_mppe_state { - struct crypto_sync_skcipher *arc4; + struct arc4_ctx arc4; struct shash_desc *sha1; unsigned char *sha1_digest; unsigned char master_key[MPPE_MAX_KEY_LEN]; @@ -154,24 +148,11 @@ static void get_new_key_from_sha(struct ppp_mppe_state * state) */ static void mppe_rekey(struct ppp_mppe_state * state, int initial_key) { - struct scatterlist sg_in[1], sg_out[1]; - SYNC_SKCIPHER_REQUEST_ON_STACK(req, state->arc4); - - skcipher_request_set_sync_tfm(req, state->arc4); - skcipher_request_set_callback(req, 0, NULL, NULL); - get_new_key_from_sha(state); if (!initial_key) { - crypto_sync_skcipher_setkey(state->arc4, state->sha1_digest, - state->keylen); - sg_init_table(sg_in, 1); - sg_init_table(sg_out, 1); - setup_sg(sg_in, state->sha1_digest, state->keylen); - setup_sg(sg_out, state->session_key, state->keylen); - skcipher_request_set_crypt(req, sg_in, sg_out, state->keylen, - NULL); - if (crypto_skcipher_encrypt(req)) - printk(KERN_WARNING "mppe_rekey: cipher_encrypt failed\n"); + arc4_setkey(&state->arc4, state->sha1_digest, state->keylen); + arc4_crypt(&state->arc4, state->session_key, state->sha1_digest, + state->keylen); } else { memcpy(state->session_key, state->sha1_digest, state->keylen); } @@ -181,9 +162,7 @@ static void mppe_rekey(struct ppp_mppe_state * state, int initial_key) state->session_key[1] = 0x26; state->session_key[2] = 0x9e; } - crypto_sync_skcipher_setkey(state->arc4, state->session_key, - state->keylen); - skcipher_request_zero(req); + arc4_setkey(&state->arc4, state->session_key, state->keylen); } /* @@ -196,7 +175,8 @@ static void *mppe_alloc(unsigned char *options, int optlen) unsigned int digestsize; if (optlen != CILEN_MPPE + sizeof(state->master_key) || - options[0] != CI_MPPE || options[1] != CILEN_MPPE) + options[0] != CI_MPPE || options[1] != CILEN_MPPE || + fips_enabled) goto out; state = kzalloc(sizeof(*state), GFP_KERNEL); @@ -204,12 +184,6 @@ static void *mppe_alloc(unsigned char *options, int optlen) goto out; - state->arc4 = crypto_alloc_sync_skcipher("ecb(arc4)", 0, 0); - if (IS_ERR(state->arc4)) { - state->arc4 = NULL; - goto out_free; - } - shash = crypto_alloc_shash("sha1", 0, 0); if (IS_ERR(shash)) goto out_free; @@ -250,7 +224,6 @@ out_free: crypto_free_shash(state->sha1->tfm); kzfree(state->sha1); } - crypto_free_sync_skcipher(state->arc4); kfree(state); out: return NULL; @@ -266,8 +239,7 @@ static void mppe_free(void *arg) kfree(state->sha1_digest); crypto_free_shash(state->sha1->tfm); kzfree(state->sha1); - crypto_free_sync_skcipher(state->arc4); - kfree(state); + kzfree(state); } } @@ -366,10 +338,7 @@ mppe_compress(void *arg, unsigned char *ibuf, unsigned char *obuf, int isize, int osize) { struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg; - SYNC_SKCIPHER_REQUEST_ON_STACK(req, state->arc4); int proto; - int err; - struct scatterlist sg_in[1], sg_out[1]; /* * Check that the protocol is in the range we handle. @@ -420,21 +389,7 @@ mppe_compress(void *arg, unsigned char *ibuf, unsigned char *obuf, ibuf += 2; /* skip to proto field */ isize -= 2; - /* Encrypt packet */ - sg_init_table(sg_in, 1); - sg_init_table(sg_out, 1); - setup_sg(sg_in, ibuf, isize); - setup_sg(sg_out, obuf, osize); - - skcipher_request_set_sync_tfm(req, state->arc4); - skcipher_request_set_callback(req, 0, NULL, NULL); - skcipher_request_set_crypt(req, sg_in, sg_out, isize, NULL); - err = crypto_skcipher_encrypt(req); - skcipher_request_zero(req); - if (err) { - printk(KERN_DEBUG "crypto_cypher_encrypt failed\n"); - return -1; - } + arc4_crypt(&state->arc4, obuf, ibuf, isize); state->stats.unc_bytes += isize; state->stats.unc_packets++; @@ -480,10 +435,8 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf, int osize) { struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg; - SYNC_SKCIPHER_REQUEST_ON_STACK(req, state->arc4); unsigned ccount; int flushed = MPPE_BITS(ibuf) & MPPE_BIT_FLUSHED; - struct scatterlist sg_in[1], sg_out[1]; if (isize <= PPP_HDRLEN + MPPE_OVHD) { if (state->debug) @@ -610,19 +563,7 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf, * Decrypt the first byte in order to check if it is * a compressed or uncompressed protocol field. */ - sg_init_table(sg_in, 1); - sg_init_table(sg_out, 1); - setup_sg(sg_in, ibuf, 1); - setup_sg(sg_out, obuf, 1); - - skcipher_request_set_sync_tfm(req, state->arc4); - skcipher_request_set_callback(req, 0, NULL, NULL); - skcipher_request_set_crypt(req, sg_in, sg_out, 1, NULL); - if (crypto_skcipher_decrypt(req)) { - printk(KERN_DEBUG "crypto_cypher_decrypt failed\n"); - osize = DECOMP_ERROR; - goto out_zap_req; - } + arc4_crypt(&state->arc4, obuf, ibuf, 1); /* * Do PFC decompression. @@ -637,14 +578,7 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf, } /* And finally, decrypt the rest of the packet. */ - setup_sg(sg_in, ibuf + 1, isize - 1); - setup_sg(sg_out, obuf + 1, osize - 1); - skcipher_request_set_crypt(req, sg_in, sg_out, isize - 1, NULL); - if (crypto_skcipher_decrypt(req)) { - printk(KERN_DEBUG "crypto_cypher_decrypt failed\n"); - osize = DECOMP_ERROR; - goto out_zap_req; - } + arc4_crypt(&state->arc4, obuf + 1, ibuf + 1, isize - 1); state->stats.unc_bytes += osize; state->stats.unc_packets++; @@ -654,8 +588,6 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf, /* good packet credit */ state->sanity_errors >>= 1; -out_zap_req: - skcipher_request_zero(req); return osize; sanity_error: @@ -728,8 +660,7 @@ static struct compressor ppp_mppe = { static int __init ppp_mppe_init(void) { int answer; - if (!(crypto_has_skcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC) && - crypto_has_ahash("sha1", 0, CRYPTO_ALG_ASYNC))) + if (fips_enabled || !crypto_has_ahash("sha1", 0, CRYPTO_ALG_ASYNC)) return -ENODEV; sha_pad = kmalloc(sizeof(struct sha_pad), GFP_KERNEL); diff --git a/drivers/net/ppp/ppp_synctty.c b/drivers/net/ppp/ppp_synctty.c index d02ba2494d93..0f338752c38b 100644 --- a/drivers/net/ppp/ppp_synctty.c +++ b/drivers/net/ppp/ppp_synctty.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * PPP synchronous tty channel driver for Linux. * @@ -15,11 +16,6 @@ * * Also touched by the grubby hands of Paul Fulghum paulkf@microgate.com * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * * This driver provides the encapsulation and framing for sending * and receiving PPP frames over sync serial lines. It relies on * the generic PPP layer to give it frames to send and to process diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c index f22639f0116a..1d902ecb4aa8 100644 --- a/drivers/net/ppp/pppoe.c +++ b/drivers/net/ppp/pppoe.c @@ -1,10 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /** -*- linux-c -*- *********************************************************** * Linux PPP over Ethernet (PPPoX/PPPoE) Sockets * * PPPoX --- Generic PPP encapsulation socket family * PPPoE --- PPP over Ethernet (RFC 2516) * - * * Version: 0.7.0 * * 070228 : Fix to allow multiple sessions with same remote MAC and same @@ -50,11 +50,6 @@ * David S. Miller (davem@redhat.com) * * License: - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * */ #include <linux/string.h> diff --git a/drivers/net/ppp/pppox.c b/drivers/net/ppp/pppox.c index c0599b3b23c0..5ef422a43d70 100644 --- a/drivers/net/ppp/pppox.c +++ b/drivers/net/ppp/pppox.c @@ -1,10 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /** -*- linux-c -*- *********************************************************** * Linux PPP over X/Ethernet (PPPoX/PPPoE) Sockets * * PPPoX --- Generic PPP encapsulation socket family * PPPoE --- PPP over Ethernet (RFC 2516) * - * * Version: 0.5.2 * * Author: Michal Ostrowski <mostrows@speakeasy.net> @@ -12,11 +12,6 @@ * 051000 : Initialization cleanup * * License: - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * */ #include <linux/string.h> diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c index 50c60550f295..a8e52c8e4128 100644 --- a/drivers/net/ppp/pptp.c +++ b/drivers/net/ppp/pptp.c @@ -1,13 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Point-to-Point Tunneling Protocol for Linux * * Authors: Dmitry Kozlov <xeb@mail.ru> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * */ #include <linux/string.h> |