From: "Jorge Boncompte [DTI2]" <jorge@xxxxxxxx>
Signed-off-by: Jorge Boncompte [DTI2] <jorge@xxxxxxxx>
---
drivers/net/ppp/ppp_mppe.c | 104 +++++++++++++++++++++-----------------------
1 file changed, 49 insertions(+), 55 deletions(-)
diff --git a/drivers/net/ppp/ppp_mppe.c b/drivers/net/ppp/ppp_mppe.c
index 54c64cf..4d27245 100644
--- a/drivers/net/ppp/ppp_mppe.c
+++ b/drivers/net/ppp/ppp_mppe.c
@@ -66,8 +66,8 @@ 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)
+static unsigned int setup_sg(struct scatterlist *sg, const void *address,
+ unsigned int length)
{
sg_set_buf(sg, address, length);
return length;
@@ -138,7 +138,7 @@ struct ppp_mppe_state {
* Key Derivation, from RFC 3078, RFC 3079.
* Equivalent to Get_Key() for MS-CHAP as described in RFC 3079.
*/
-static void get_new_key_from_sha(struct ppp_mppe_state * state)
+static void get_new_key_from_sha(struct ppp_mppe_state *state)
{
struct hash_desc desc;
struct scatterlist sg[4];
@@ -163,7 +163,7 @@ static void get_new_key_from_sha(struct ppp_mppe_state * state)
* Perform the MPPE rekey algorithm, from RFC 3078, sec. 7.3.
* Well, not what's written there, but rather what they meant.
*/
-static void mppe_rekey(struct ppp_mppe_state * state, int initial_key)
+static void mppe_rekey(struct ppp_mppe_state *state, int initial_key)
{
struct scatterlist sg_in[1], sg_out[1];
struct blkcipher_desc desc = { .tfm = state->arc4 };
@@ -209,7 +209,6 @@ static void *mppe_alloc(unsigned char *options, int optlen)
if (state == NULL)
goto out;
-
state->arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(state->arc4)) {
state->arc4 = NULL;
@@ -243,15 +242,15 @@ static void *mppe_alloc(unsigned char *options, int optlen)
return (void *)state;
- out_free:
- if (state->sha1_digest)
+out_free:
+ if (state->sha1_digest)
kfree(state->sha1_digest);
- if (state->sha1)
+ if (state->sha1)
crypto_free_hash(state->sha1);
- if (state->arc4)
+ if (state->arc4)
crypto_free_blkcipher(state->arc4);
- kfree(state);
- out:
+ kfree(state);
+out:
return NULL;
}
@@ -260,26 +259,25 @@ static void *mppe_alloc(unsigned char *options, int optlen)
*/
static void mppe_free(void *arg)
{
- struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
+ struct ppp_mppe_state *state = (struct ppp_mppe_state *)arg;
if (state) {
- if (state->sha1_digest)
- kfree(state->sha1_digest);
- if (state->sha1)
- crypto_free_hash(state->sha1);
- if (state->arc4)
- crypto_free_blkcipher(state->arc4);
- kfree(state);
+ if (state->sha1_digest)
+ kfree(state->sha1_digest);
+ if (state->sha1)
+ crypto_free_hash(state->sha1);
+ if (state->arc4)
+ crypto_free_blkcipher(state->arc4);
+ kfree(state);
}
}
/*
* Initialize (de)compressor state.
*/
-static int
-mppe_init(void *arg, unsigned char *options, int optlen, int unit, int debug,
- const char *debugstr)
+static int mppe_init(void *arg, unsigned char *options, int optlen, int unit,
+ int debug, const char *debugstr)
{
- struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
+ struct ppp_mppe_state *state = (struct ppp_mppe_state *)arg;
unsigned char mppe_opts;
if (optlen != CILEN_MPPE ||
@@ -338,9 +336,8 @@ mppe_init(void *arg, unsigned char *options, int optlen, int unit, int debug,
return 1;
}
-static int
-mppe_comp_init(void *arg, unsigned char *options, int optlen, int unit,
- int hdrlen, int debug)
+static int mppe_comp_init(void *arg, unsigned char *options, int optlen,
+ int unit, int hdrlen, int debug)
{
/* ARGSUSED */
return mppe_init(arg, options, optlen, unit, debug, "mppe_comp_init");
@@ -357,7 +354,7 @@ mppe_comp_init(void *arg, unsigned char *options, int optlen, int unit,
*/
static void mppe_comp_reset(void *arg)
{
- struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
+ struct ppp_mppe_state *state = (struct ppp_mppe_state *)arg;
state->bits |= MPPE_BIT_FLUSHED;
}
@@ -367,11 +364,10 @@ static void mppe_comp_reset(void *arg)
* It's strange to call this a compressor, since the output is always
* MPPE_OVHD + 2 bytes larger than the input.
*/
-static int
-mppe_compress(void *arg, unsigned char *ibuf, unsigned char *obuf,
- int isize, int osize)
+static int mppe_compress(void *arg, unsigned char *ibuf, unsigned char *obuf,
+ int isize, int osize)
{
- struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
+ struct ppp_mppe_state *state = (struct ppp_mppe_state *)arg;
struct blkcipher_desc desc = { .tfm = state->arc4 };
int proto;
struct scatterlist sg_in[1], sg_out[1];
@@ -450,14 +446,13 @@ mppe_compress(void *arg, unsigned char *ibuf, unsigned char *obuf,
*/
static void mppe_comp_stats(void *arg, struct compstat *stats)
{
- struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
+ struct ppp_mppe_state *state = (struct ppp_mppe_state *)arg;
*stats = state->stats;
}
-static int
-mppe_decomp_init(void *arg, unsigned char *options, int optlen, int unit,
- int hdrlen, int mru, int debug)
+static int mppe_decomp_init(void *arg, unsigned char *options, int optlen,
+ int unit, int hdrlen, int mru, int debug)
{
/* ARGSUSED */
return mppe_init(arg, options, optlen, unit, debug, "mppe_decomp_init");
@@ -483,11 +478,10 @@ static int mppe_cmp_ccount(unsigned int a, unsigned int b)
/*
* Decompress (decrypt) an MPPE packet.
*/
-static int
-mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf,
- int osize)
+static int mppe_decompress(void *arg, unsigned char *ibuf, int isize,
+ unsigned char *obuf, int osize)
{
- struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
+ struct ppp_mppe_state *state = (struct ppp_mppe_state *)arg;
struct blkcipher_desc desc = { .tfm = state->arc4 };
unsigned ccount;
int flushed = MPPE_BITS(ibuf) & MPPE_BIT_FLUSHED;
@@ -685,7 +679,7 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf,
*/
static void mppe_incomp(void *arg, unsigned char *ibuf, int icnt)
{
- struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
+ struct ppp_mppe_state *state = (struct ppp_mppe_state *)arg;
if (state->debug &&
(PPP_PROTOCOL(ibuf) >= 0x0021 && PPP_PROTOCOL(ibuf) <= 0x00fa))
@@ -708,21 +702,21 @@ static void mppe_incomp(void *arg, unsigned char *ibuf, int icnt)
*/
static struct compressor ppp_mppe = {
.compress_proto = CI_MPPE,
- .comp_alloc = mppe_alloc,
- .comp_free = mppe_free,
- .comp_init = mppe_comp_init,
- .comp_reset = mppe_comp_reset,
- .compress = mppe_compress,
- .comp_stat = mppe_comp_stats,
- .decomp_alloc = mppe_alloc,
- .decomp_free = mppe_free,
- .decomp_init = mppe_decomp_init,
- .decomp_reset = mppe_decomp_reset,
- .decompress = mppe_decompress,
- .incomp = mppe_incomp,
- .decomp_stat = mppe_comp_stats,
- .owner = THIS_MODULE,
- .comp_extra = MPPE_PAD,
+ .comp_alloc = mppe_alloc,
+ .comp_free = mppe_free,
+ .comp_init = mppe_comp_init,
+ .comp_reset = mppe_comp_reset,
+ .compress = mppe_compress,
+ .comp_stat = mppe_comp_stats,
+ .decomp_alloc = mppe_alloc,
+ .decomp_free = mppe_free,
+ .decomp_init = mppe_decomp_init,
+ .decomp_reset = mppe_decomp_reset,
+ .decompress = mppe_decompress,
+ .incomp = mppe_incomp,
+ .decomp_stat = mppe_comp_stats,
+ .owner = THIS_MODULE,
+ .comp_extra = MPPE_PAD,
};
/*
--
1.7.10.4
--
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