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PPP, MPPE, changed API to use struct ppp_mppe_state* instead of void*

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Now that struct ppp_mppe_state is exported, change MPPE API to use
struct ppp_mppe_state* instead of void*, we don't need that to be generic.
This commit is contained in:
Sylvain Rochet 2015-04-18 00:26:15 +02:00
parent 6235e1ae57
commit da40445d75
2 changed files with 23 additions and 30 deletions
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18
src/include/netif/ppp/mppe.h
View File

@ -152,17 +152,17 @@ struct ppp_mppe_state {
int debug;
};
void *mppe_alloc(unsigned char *options, int optlen);
void mppe_free(void *arg);
int mppe_comp_init(void *arg, unsigned char *options, int optlen, int unit,
struct ppp_mppe_state *mppe_alloc(unsigned char *options, int optlen);
void mppe_free(struct ppp_mppe_state *state);
int mppe_comp_init(struct ppp_mppe_state *state, unsigned char *options, int optlen, int unit,
int hdrlen, int debug);
void mppe_comp_reset(void *arg);
err_t mppe_compress(void *arg, struct pbuf **pb, u16_t protocol);
int mppe_decomp_init(void *arg, unsigned char *options, int optlen, int unit,
void mppe_comp_reset(struct ppp_mppe_state *state);
err_t mppe_compress(struct ppp_mppe_state *state, struct pbuf **pb, u16_t protocol);
int mppe_decomp_init(struct ppp_mppe_state *state, unsigned char *options, int optlen, int unit,
int hdrlen, int mru, int debug);
void mppe_decomp_reset(void *arg);
err_t mppe_decompress(void *arg, struct pbuf **pb);
void mppe_incomp(void *arg, unsigned char *ibuf, int icnt);
void mppe_decomp_reset(struct ppp_mppe_state *state);
err_t mppe_decompress(struct ppp_mppe_state *state, struct pbuf **pb);
void mppe_incomp(struct ppp_mppe_state *state, unsigned char *ibuf, int icnt);
#endif /* MPPE_H */
#endif /* PPP_SUPPORT && MPPE_SUPPORT */

35
src/netif/ppp/mppe.c
View File

@ -116,7 +116,7 @@ static void mppe_rekey(struct ppp_mppe_state * state, int initial_key)
/*
* Allocate space for a (de)compressor.
*/
void *mppe_alloc(unsigned char *options, int optlen)
struct ppp_mppe_state *mppe_alloc(unsigned char *options, int optlen)
{
struct ppp_mppe_state *state;
@ -140,7 +140,7 @@ void *mppe_alloc(unsigned char *options, int optlen)
* is called frequently during negotiation.
*/
return (void *)state;
return state;
out:
return NULL;
@ -149,9 +149,8 @@ out:
/*
* Deallocate space for a (de)compressor.
*/
void mppe_free(void *arg)
void mppe_free(struct ppp_mppe_state *state)
{
struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
if (state) {
free(state);
}
@ -161,10 +160,9 @@ void mppe_free(void *arg)
* Initialize (de)compressor state.
*/
static int
mppe_init(void *arg, unsigned char *options, int optlen, int unit, int debug,
mppe_init(struct ppp_mppe_state *state, unsigned char *options, int optlen, int unit, int debug,
const char *debugstr)
{
struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
unsigned char mppe_opts;
if (optlen != CILEN_MPPE ||
@ -226,11 +224,11 @@ mppe_init(void *arg, unsigned char *options, int optlen, int unit, int debug,
}
int
mppe_comp_init(void *arg, unsigned char *options, int optlen, int unit,
mppe_comp_init(struct ppp_mppe_state *state, unsigned char *options, int optlen, int unit,
int hdrlen, int debug)
{
LWIP_UNUSED_ARG(hdrlen);
return mppe_init(arg, options, optlen, unit, debug, "mppe_comp_init");
return mppe_init(state, options, optlen, unit, debug, "mppe_comp_init");
}
/*
@ -242,10 +240,8 @@ mppe_comp_init(void *arg, unsigned char *options, int optlen, int unit,
* know how many times we've rekeyed. (If we rekey and THEN get another
* CCP Reset-Request, we must rekey again.)
*/
void mppe_comp_reset(void *arg)
void mppe_comp_reset(struct ppp_mppe_state *state)
{
struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
state->bits |= MPPE_BIT_FLUSHED;
}
@ -255,9 +251,8 @@ void mppe_comp_reset(void *arg)
* MPPE_OVHD + 2 bytes larger than the input.
*/
err_t
mppe_compress(void *arg, struct pbuf **pb, u16_t protocol)
mppe_compress(struct ppp_mppe_state *state, struct pbuf **pb, u16_t protocol)
{
struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
struct pbuf *np, *n;
u8_t *pl;
@ -310,20 +305,20 @@ mppe_compress(void *arg, struct pbuf **pb, u16_t protocol)
}
int
mppe_decomp_init(void *arg, unsigned char *options, int optlen, int unit,
mppe_decomp_init(struct ppp_mppe_state *state, unsigned char *options, int optlen, int unit,
int hdrlen, int mru, int debug)
{
LWIP_UNUSED_ARG(hdrlen);
LWIP_UNUSED_ARG(mru);
return mppe_init(arg, options, optlen, unit, debug, "mppe_decomp_init");
return mppe_init(state, options, optlen, unit, debug, "mppe_decomp_init");
}
/*
* We received a CCP Reset-Ack. Just ignore it.
*/
void mppe_decomp_reset(void *arg)
void mppe_decomp_reset(struct ppp_mppe_state *state)
{
LWIP_UNUSED_ARG(arg);
LWIP_UNUSED_ARG(state);
return;
}
@ -331,9 +326,8 @@ void mppe_decomp_reset(void *arg)
* Decompress (decrypt) an MPPE packet.
*/
err_t
mppe_decompress(void *arg, struct pbuf **pb)
mppe_decompress(struct ppp_mppe_state *state, struct pbuf **pb)
{
struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
struct pbuf *n0 = *pb, *n;
u8_t *pl;
unsigned ccount;
@ -468,9 +462,8 @@ mppe_decompress(void *arg, struct pbuf **pb)
* of what should be encrypted. At the least, we should drop this
* packet. (How to do this?)
*/
void mppe_incomp(void *arg, unsigned char *ibuf, int icnt)
void mppe_incomp(struct ppp_mppe_state *state, unsigned char *ibuf, int icnt)
{
struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg;
LWIP_UNUSED_ARG(icnt);
if (state->debug &&