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pcb->outpacket_buf replaced by pbuf everywhere it was used

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This commit is contained in:
Sylvain Rochet 2012-06-18 02:21:18 +02:00
parent 503162ec54
commit 4a7f2ffc5e
6 changed files with 94 additions and 40 deletions
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1
src/netif/ppp/chap-new.c
View File

@ -281,6 +281,7 @@ static void chap_handle_response(ppp_pcb *pcb, int id,
unsigned char *pkt, int len) {
int response_len, ok, mlen;
unsigned char *response, *outp;
struct pbuf *p;
char *name = NULL; /* initialized to shut gcc up */
int (*verifier)(char *, char *, int, struct chap_digest_type *,
unsigned char *, unsigned char *, char *, int);

92
src/netif/ppp/eap.c
View File

@ -260,10 +260,15 @@ eap_send_failure(esp)
eap_state *esp;
{
ppp_pcb *pcb = &ppp_pcb_list[pcb->eap.es_unit];
struct pbuf *p;
u_char *outp;
outp = pcb->outpacket_buf;
p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN + EAP_HEADERLEN), PBUF_RAM);
if(NULL == p)
return;
outp = p->payload;
MAKEHEADER(outp, PPP_EAP);
PUTCHAR(EAP_FAILURE, outp);
@ -271,7 +276,7 @@ eap_state *esp;
PUTCHAR(pcb->eap.es_server.ea_id, outp);
PUTSHORT(EAP_HEADERLEN, outp);
ppp_write(pcb, pcb->outpacket_buf, EAP_HEADERLEN + PPP_HDRLEN);
ppp_write_pbuf(pcb, p);
pcb->eap.es_server.ea_state = eapBadAuth;
auth_peer_fail(pcb, PPP_EAP);
@ -286,9 +291,14 @@ eap_send_success(esp)
eap_state *esp;
{
ppp_pcb *pcb = &ppp_pcb_list[pcb->eap.es_unit];
struct pbuf *p;
u_char *outp;
outp = pcb->outpacket_buf;
p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN + EAP_HEADERLEN), PBUF_RAM);
if(NULL == p)
return;
outp = p->payload;
MAKEHEADER(outp, PPP_EAP);
@ -297,7 +307,7 @@ eap_state *esp;
PUTCHAR(pcb->eap.es_server.ea_id, outp);
PUTSHORT(EAP_HEADERLEN, outp);
ppp_write(pcb, pcb->outpacket_buf, PPP_HDRLEN + EAP_HEADERLEN);
ppp_write_pbuf(pcb, p);
auth_peer_success(pcb, PPP_EAP, 0,
pcb->eap.es_server.ea_peer, pcb->eap.es_server.ea_peerlen);
@ -642,6 +652,7 @@ eap_send_request(esp)
eap_state *esp;
{
ppp_pcb *pcb = &ppp_pcb_list[pcb->eap.es_unit];
struct pbuf *p;
u_char *outp;
u_char *lenloc;
u_char *ptr;
@ -682,7 +693,12 @@ eap_state *esp;
return;
}
outp = pcb->outpacket_buf;
/* FIXME: improve buffer size */
p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_MRU+PPP_HDRLEN), PBUF_RAM);
if(NULL == p)
return;
outp = p->payload;
MAKEHEADER(outp, PPP_EAP);
@ -858,10 +874,11 @@ eap_state *esp;
return;
}
outlen = (outp - pcb->outpacket_buf) - PPP_HDRLEN;
outlen = (outp - p->payload) - PPP_HDRLEN;
PUTSHORT(outlen, lenloc);
ppp_write(pcb, pcb->outpacket_buf, outlen + PPP_HDRLEN);
pbuf_realloc(p, outlen + PPP_HDRLEN);
ppp_write_pbuf(pcb, p);
pcb->eap.es_server.ea_requests++;
@ -1034,42 +1051,52 @@ static void eap_protrej(ppp_pcb *pcb) {
* Format and send a regular EAP Response message.
*/
static void eap_send_response(ppp_pcb *pcb, u_char id, u_char typenum, u_char *str, int lenstr) {
struct pbuf *p;
u_char *outp;
int msglen;
outp = pcb->outpacket_buf;
msglen = EAP_HEADERLEN + sizeof (u_char) + lenstr;
p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN + msglen), PBUF_RAM);
if(NULL == p)
return;
outp = p->payload;
MAKEHEADER(outp, PPP_EAP);
PUTCHAR(EAP_RESPONSE, outp);
PUTCHAR(id, outp);
pcb->eap.es_client.ea_id = id;
msglen = EAP_HEADERLEN + sizeof (u_char) + lenstr;
PUTSHORT(msglen, outp);
PUTCHAR(typenum, outp);
if (lenstr > 0) {
MEMCPY(outp, str, lenstr);
}
ppp_write(pcb, pcb->outpacket_buf, PPP_HDRLEN + msglen);
ppp_write_pbuf(pcb, p);
}
/*
* Format and send an MD5-Challenge EAP Response message.
*/
static void eap_chap_response(ppp_pcb *pcb, u_char id, u_char *hash, char *name, int namelen) {
struct pbuf *p;
u_char *outp;
int msglen;
outp = pcb->outpacket_buf;
msglen = EAP_HEADERLEN + 2 * sizeof (u_char) + MD5_SIGNATURE_SIZE +
namelen;
p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN + msglen), PBUF_RAM);
if(NULL == p)
return;
outp = p->payload;
MAKEHEADER(outp, PPP_EAP);
PUTCHAR(EAP_RESPONSE, outp);
PUTCHAR(id, outp);
pcb->eap.es_client.ea_id = id;
msglen = EAP_HEADERLEN + 2 * sizeof (u_char) + MD5_SIGNATURE_SIZE +
namelen;
PUTSHORT(msglen, outp);
PUTCHAR(EAPT_MD5CHAP, outp);
PUTCHAR(MD5_SIGNATURE_SIZE, outp);
@ -1079,7 +1106,7 @@ static void eap_chap_response(ppp_pcb *pcb, u_char id, u_char *hash, char *name,
MEMCPY(outp, name, namelen);
}
ppp_write(pcb, pcb->outpacket_buf, PPP_HDRLEN + msglen);
ppp_write_pbuf(pcb, p);
}
#ifdef USE_SRP
@ -1095,17 +1122,22 @@ u_char *str;
int lenstr;
{
ppp_pcb *pcb = &ppp_pcb_list[pcb->eap.es_unit];
struct pbuf *p;
u_char *outp;
int msglen;
outp = pcb->outpacket_buf;
msglen = EAP_HEADERLEN + 2 * sizeof (u_char) + lenstr;
p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN + msglen), PBUF_RAM);
if(NULL == p)
return;
outp = p->payload;
MAKEHEADER(outp, PPP_EAP);
PUTCHAR(EAP_RESPONSE, outp);
PUTCHAR(id, outp);
pcb->eap.es_client.ea_id = id;
msglen = EAP_HEADERLEN + 2 * sizeof (u_char) + lenstr;
PUTSHORT(msglen, outp);
PUTCHAR(EAPT_SRP, outp);
PUTCHAR(subtypenum, outp);
@ -1113,7 +1145,7 @@ int lenstr;
MEMCPY(outp, str, lenstr);
}
ppp_write(pcb, pcb->outpacket_buf, PPP_HDRLEN + msglen);
ppp_write_pbuf(pcb, p);
}
/*
@ -1127,45 +1159,55 @@ u_int32_t flags;
u_char *str;
{
ppp_pcb *pcb = &ppp_pcb_list[pcb->eap.es_unit];
struct pbuf *p;
u_char *outp;
int msglen;
outp = pcb->outpacket_buf;
msglen = EAP_HEADERLEN + 2 * sizeof (u_char) + sizeof (u_int32_t) +
SHA_DIGESTSIZE;
p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN + msglen), PBUF_RAM);
if(NULL == p)
return;
outp = p->payload;
MAKEHEADER(outp, PPP_EAP);
PUTCHAR(EAP_RESPONSE, outp);
PUTCHAR(id, outp);
pcb->eap.es_client.ea_id = id;
msglen = EAP_HEADERLEN + 2 * sizeof (u_char) + sizeof (u_int32_t) +
SHA_DIGESTSIZE;
PUTSHORT(msglen, outp);
PUTCHAR(EAPT_SRP, outp);
PUTCHAR(EAPSRP_CVALIDATOR, outp);
PUTLONG(flags, outp);
MEMCPY(outp, str, SHA_DIGESTSIZE);
ppp_write(pcb, pcb->outpacket_buf, PPP_HDRLEN + msglen);
ppp_write_pbuf(pcb, p);
}
#endif /* USE_SRP */
static void eap_send_nak(ppp_pcb *pcb, u_char id, u_char type) {
struct pbuf *p;
u_char *outp;
int msglen;
outp = pcb->outpacket_buf;
msglen = EAP_HEADERLEN + 2 * sizeof (u_char);
p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_HDRLEN + msglen), PBUF_RAM);
if(NULL == p)
return;
outp = p->payload;
MAKEHEADER(outp, PPP_EAP);
PUTCHAR(EAP_RESPONSE, outp);
PUTCHAR(id, outp);
pcb->eap.es_client.ea_id = id;
msglen = EAP_HEADERLEN + 2 * sizeof (u_char);
PUTSHORT(msglen, outp);
PUTCHAR(EAPT_NAK, outp);
PUTCHAR(type, outp);
ppp_write(pcb, pcb->outpacket_buf, PPP_HDRLEN + msglen);
ppp_write_pbuf(pcb, p);
}
#ifdef USE_SRP

31
src/netif/ppp/fsm.c
View File

@ -686,6 +686,7 @@ void fsm_protreject(fsm *f) {
*/
static void fsm_sconfreq(fsm *f, int retransmit) {
ppp_pcb *pcb = f->pcb;
struct pbuf *p;
u_char *outp;
int cilen;
@ -705,10 +706,15 @@ static void fsm_sconfreq(fsm *f, int retransmit) {
f->seen_ack = 0;
/* FIXME: improve buffer size */
p = pbuf_alloc(PBUF_RAW, (u16_t)(PPP_MRU+PPP_HDRLEN), PBUF_RAM);
if(NULL == p)
return;
/*
* Make up the request packet
*/
outp = pcb->outpacket_buf + PPP_HDRLEN + HEADERLEN;
outp = (u_char*)p->payload + PPP_HDRLEN + HEADERLEN;
if( f->callbacks->cilen && f->callbacks->addci ){
cilen = (*f->callbacks->cilen)(f);
if( cilen > pcb->peer_mru - HEADERLEN )
@ -719,7 +725,14 @@ static void fsm_sconfreq(fsm *f, int retransmit) {
cilen = 0;
/* send the request to our peer */
fsm_sdata(f, CONFREQ, f->reqid, outp, cilen);
outp = p->payload;
MAKEHEADER(outp, f->protocol);
PUTCHAR(CONFREQ, outp);
PUTCHAR(f->reqid, outp);
PUTSHORT(cilen + HEADERLEN, outp);
pbuf_realloc(p, cilen + HEADERLEN + PPP_HDRLEN);
ppp_write_pbuf(pcb, p);
/* start the retransmit timer */
--f->retransmits;
@ -734,21 +747,27 @@ static void fsm_sconfreq(fsm *f, int retransmit) {
*/
void fsm_sdata(fsm *f, u_char code, u_char id, u_char *data, int datalen) {
ppp_pcb *pcb = f->pcb;
struct pbuf *p;
u_char *outp;
int outlen;
/* Adjust length to be smaller than MTU */
outp = pcb->outpacket_buf;
if (datalen > pcb->peer_mru - HEADERLEN)
datalen = pcb->peer_mru - HEADERLEN;
if (datalen && data != outp + PPP_HDRLEN + HEADERLEN)
MEMCPY(outp + PPP_HDRLEN + HEADERLEN, data, datalen);
outlen = datalen + HEADERLEN;
p = pbuf_alloc(PBUF_RAW, (u16_t)(outlen + PPP_HDRLEN), PBUF_RAM);
if(NULL == p)
return;
outp = p->payload;
/* if (datalen && data != outp + PPP_HDRLEN + HEADERLEN) -- was only for fsm_sconfreq() */
MEMCPY(outp + PPP_HDRLEN + HEADERLEN, data, datalen);
MAKEHEADER(outp, f->protocol);
PUTCHAR(code, outp);
PUTCHAR(id, outp);
PUTSHORT(outlen, outp);
ppp_write(pcb, pcb->outpacket_buf, outlen + PPP_HDRLEN);
ppp_write_pbuf(pcb, p);
}
#endif /* PPP_SUPPORT */

1
src/netif/ppp/ppp.c
View File

@ -1146,6 +1146,7 @@ ppp_ioctl(ppp_pcb *pcb, int cmd, void *arg)
return PPPERR_PARAM;
}
/* FIXME: improve that */
int ppp_write_pbuf(ppp_pcb *pcb, struct pbuf *p) {
ppp_write(pcb, p->payload, p->len);
pbuf_free(p);

7
src/netif/ppp/ppp.h
View File

@ -345,13 +345,6 @@ struct ppp_pcb_s {
int ipcp_is_open; /* haven't called np_finished() */
int ipcp_is_up; /* have called np_up() */
bool ask_for_local; /* request our address from peer */
/*
* Buffers for outgoing packets. This must be accessed only from the appropriate
* PPP task so that it doesn't need to be protected to avoid collisions.
*/
u_char outpacket_buf[PPP_MRU+PPP_HDRLEN]; /* buffer for outgoing packet */
};
/************************

2
src/netif/ppp/ppp_impl.h
View File

@ -235,8 +235,6 @@ struct ppp_idle {
/*
* Global variables.
*/
extern u_char outpacket_buf[]; /* Buffer for outgoing packets */
#ifdef HAVE_MULTILINK
extern bool multilink; /* enable multilink operation */
extern bool doing_multilink;