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PPP, add PPPoS CB for PPPoS private data

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Created a new PPPoS CB going to have PPPoS private data, so allocating a
PPPoE or a PPPoL2TP interface does not allocate as well PPPoS variables.
This commit is contained in:
Sylvain Rochet 2015-02-15 22:44:57 +01:00
parent 9c15ffbb74
commit ea205f2fcd
5 changed files with 61 additions and 24 deletions
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1
src/core/memp.c
View File

@ -60,6 +60,7 @@
#include "lwip/dns.h"
#include "lwip/netdb.h"
#include "netif/ppp/ppp.h"
#include "netif/ppp/pppos.h"
#include "netif/ppp/pppoe.h"
#include "netif/ppp/pppol2tp.h"
#include "lwip/nd6.h"

3
src/include/lwip/memp_std.h
View File

@ -102,6 +102,9 @@ LWIP_MEMPOOL(LOCALHOSTLIST, MEMP_NUM_LOCALHOSTLIST, LOCALHOSTLIST_ELEM_SIZE,
#if PPP_SUPPORT
LWIP_MEMPOOL(PPP_PCB, MEMP_NUM_PPP_PCB, sizeof(ppp_pcb), "PPP_PCB")
#if PPPOS_SUPPORT
LWIP_MEMPOOL(PPPOS_PCB, MEMP_NUM_PPPOS_INTERFACES, sizeof(pppos_pcb), "PPPOS_PCB")
#endif /* PPPOS_SUPPORT */
#if PPPOE_SUPPORT
LWIP_MEMPOOL(PPPOE_IF, MEMP_NUM_PPPOE_INTERFACES, sizeof(struct pppoe_softc), "PPPOE_IF")
#endif /* PPPOE_SUPPORT */

8
src/include/lwip/opt.h
View File

@ -416,6 +416,14 @@
#define MEMP_NUM_PPP_PCB 1
#endif
/**
* MEMP_NUM_PPPOS_INTERFACES: the number of concurrently active PPPoS
* interfaces (only used with PPPOS_SUPPORT==1)
*/
#ifndef MEMP_NUM_PPPOS_INTERFACES
#define MEMP_NUM_PPPOS_INTERFACES MEMP_NUM_PPP_PCB
#endif
/**
* MEMP_NUM_PPPOE_INTERFACES: the number of concurrently active PPPoE
* interfaces (only used with PPPOE_SUPPORT==1)

8
src/include/netif/ppp/pppos.h
View File

@ -39,6 +39,14 @@
#include "ppp.h"
/*
* PPPoS interface control block.
*/
typedef struct pppos_pcb_s pppos_pcb;
struct pppos_pcb_s {
ppp_pcb *ppp; /* PPP PCB */
};
/* Create a new PPPoS session. */
ppp_pcb *ppp_over_serial_create(struct netif *pppif, sio_fd_t fd,
ppp_link_status_cb_fn link_status_cb, void *ctx_cb);

65
src/netif/ppp/pppos.c
View File

@ -54,9 +54,9 @@ static int pppos_link_write_callback(void *pcb, struct pbuf *p);
static err_t pppos_link_netif_output_callback(void *pcb, struct pbuf *pb, u_short protocol);
/* Prototypes for procedures local to this file. */
static void pppos_connect(ppp_pcb *pcb);
static void pppos_disconnect(ppp_pcb *pcb);
static err_t pppos_destroy(ppp_pcb *sc);
static void pppos_connect(pppos_pcb *pcb);
static void pppos_disconnect(pppos_pcb *pcb);
static err_t pppos_destroy(pppos_pcb *sc);
#if PPP_INPROC_MULTITHREADED
static void pppos_input_callback(void *arg);
#endif /* PPP_INPROC_MULTITHREADED */
@ -96,6 +96,7 @@ ppp_pcb *
ppp_over_serial_create(struct netif *pppif, sio_fd_t fd,
ppp_link_status_cb_fn link_status_cb, void *ctx_cb)
{
pppos_pcb *sc;
ppp_pcb *ppp;
ppp = ppp_new(pppif, link_status_cb, ctx_cb);
@ -103,8 +104,15 @@ ppp_over_serial_create(struct netif *pppif, sio_fd_t fd,
return NULL;
}
sc = (pppos_pcb *)memp_malloc(MEMP_PPPOS_PCB);
if (sc == NULL) {
ppp_free(ppp);
return NULL;
}
sc->ppp = ppp;
ppp->fd = fd;
ppp_link_set_callbacks(ppp, pppos_link_command_callback, pppos_link_write_callback, pppos_link_netif_output_callback, ppp);
ppp_link_set_callbacks(ppp, pppos_link_command_callback, pppos_link_write_callback, pppos_link_netif_output_callback, sc);
return ppp;
}
@ -112,19 +120,19 @@ ppp_over_serial_create(struct netif *pppif, sio_fd_t fd,
static void
pppos_link_command_callback(void *pcb, u8_t command)
{
ppp_pcb *ppp = (ppp_pcb *)pcb;
pppos_pcb *sc = (pppos_pcb *)pcb;
switch(command) {
case PPP_LINK_COMMAND_CONNECT:
pppos_connect(ppp);
pppos_connect(sc);
break;
case PPP_LINK_COMMAND_DISCONNECT:
pppos_disconnect(ppp);
pppos_disconnect(sc);
break;
case PPP_LINK_COMMAND_FREE:
pppos_destroy(ppp);
pppos_destroy(sc);
break;
default: ;
@ -135,7 +143,8 @@ pppos_link_command_callback(void *pcb, u8_t command)
static int
pppos_link_write_callback(void *pcb, struct pbuf *p)
{
ppp_pcb *ppp = (ppp_pcb *)pcb;
pppos_pcb *sc = (pppos_pcb *)pcb;
ppp_pcb *ppp = sc->ppp;
u_char *s = (u_char*)p->payload;
int n = p->len;
u_char c;
@ -204,7 +213,8 @@ pppos_link_write_callback(void *pcb, struct pbuf *p)
static err_t
pppos_link_netif_output_callback(void *pcb, struct pbuf *pb, u_short protocol)
{
ppp_pcb *ppp = (ppp_pcb *)pcb;
pppos_pcb *sc = (pppos_pcb *)pcb;
ppp_pcb *ppp = sc->ppp;
u_int fcs_out = PPP_INITFCS;
struct pbuf *head = NULL, *tail = NULL, *p;
u_char c;
@ -315,49 +325,56 @@ pppos_link_netif_output_callback(void *pcb, struct pbuf *pb, u_short protocol)
}
static void
pppos_connect(ppp_pcb *pcb)
pppos_connect(pppos_pcb *pcb)
{
ppp_pcb *ppp = pcb->ppp;
/* input pbuf left over from last session? */
pppos_free_current_input_packet(&pcb->rx);
pppos_free_current_input_packet(&ppp->rx);
ppp_clear(pcb);
ppp_clear(ppp);
pcb->rx.pcb = pcb;
pcb->rx.fd = pcb->fd;
ppp->rx.pcb = ppp;
ppp->rx.fd = ppp->fd;
#if VJ_SUPPORT
vj_compress_init(&pcb->vj_comp);
vj_compress_init(&ppp->vj_comp);
#endif /* VJ_SUPPORT */
/*
* Default the in and out accm so that escape and flag characters
* are always escaped.
*/
pcb->rx.in_accm[15] = 0x60; /* no need to protect since RX is not running */
pcb->out_accm[15] = 0x60;
ppp->rx.in_accm[15] = 0x60; /* no need to protect since RX is not running */
ppp->out_accm[15] = 0x60;
/*
* Start the connection and handle incoming events (packet or timeout).
*/
PPPDEBUG(LOG_INFO, ("pppos_connect: unit %d: connecting\n", pcb->num));
ppp_start(pcb); /* notify upper layers */
PPPDEBUG(LOG_INFO, ("pppos_connect: unit %d: connecting\n", ppp->num));
ppp_start(ppp); /* notify upper layers */
}
static void
pppos_disconnect(ppp_pcb *pcb)
pppos_disconnect(pppos_pcb *pcb)
{
ppp_pcb *ppp = pcb->ppp;
/* We cannot call ppp_free_current_input_packet() here because
* rx thread might still call pppos_input()
*/
ppp_link_end(pcb); /* notify upper layers */
ppp_link_end(ppp); /* notify upper layers */
}
static err_t
pppos_destroy(ppp_pcb *pcb)
pppos_destroy(pppos_pcb *sc)
{
ppp_pcb *ppp = sc->ppp;
/* input pbuf left ? */
pppos_free_current_input_packet(&pcb->rx);
pppos_free_current_input_packet(&ppp->rx);
memp_free(MEMP_PPPOS_PCB, sc);
return ERR_OK;
}