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added netif remove callback (bug #32397)

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This commit is contained in:
Simon Goldschmidt 2011-08-24 22:00:10 +02:00
parent 249e19769b
commit 0a5755145c
4 changed files with 37 additions and 1 deletions
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5
CHANGELOG
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@ -6,7 +6,10 @@ HISTORY
++ New features:
2011-08-26: Simon Goldschmidt
2011-08-24: Simon Goldschmidt
* opt.h, netif.h/.c: added netif remove callback (bug #32397)
2011-07-26: Simon Goldschmidt
* etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)

18
src/core/netif.c
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@ -306,6 +306,11 @@ netif_remove(struct netif *netif)
/* reset default netif */
netif_set_default(NULL);
}
#if LWIP_NETIF_REMOVE_CALLBACK
if (netif->remove_callback) {
netif->remove_callback(netif);
}
#endif /* LWIP_NETIF_REMOVE_CALLBACK */
LWIP_DEBUGF( NETIF_DEBUG, ("netif_remove: removed netif\n") );
}
@ -550,6 +555,19 @@ void netif_set_status_callback(struct netif *netif, netif_status_callback_fn sta
}
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_REMOVE_CALLBACK
/**
* Set callback to be called when the interface has been removed
*/
void
netif_set_remove_callback(struct netif *netif, netif_status_callback_fn remove_callback)
{
if (netif) {
netif->remove_callback = remove_callback;
}
}
#endif /* LWIP_NETIF_REMOVE_CALLBACK */
/**
* Called by a driver when its link goes up
*/

7
src/include/lwip/netif.h
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@ -197,6 +197,10 @@ struct netif {
*/
netif_status_callback_fn link_callback;
#endif /* LWIP_NETIF_LINK_CALLBACK */
#if LWIP_NETIF_REMOVE_CALLBACK
/** This function is called when the netif has been removed */
netif_status_callback_fn remove_callback;
#endif /* LWIP_NETIF_REMOVE_CALLBACK */
/** This field can be set by the device driver and could point
* to state information for the device. */
void *state;
@ -331,6 +335,9 @@ void netif_set_down(struct netif *netif);
#if LWIP_NETIF_STATUS_CALLBACK
void netif_set_status_callback(struct netif *netif, netif_status_callback_fn status_callback);
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_REMOVE_CALLBACK
void netif_set_remove_callback(struct netif *netif, netif_status_callback_fn remove_callback);
#endif /* LWIP_NETIF_REMOVE_CALLBACK */
void netif_set_link_up(struct netif *netif);
void netif_set_link_down(struct netif *netif);

8
src/include/lwip/opt.h
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@ -1115,6 +1115,14 @@
#define LWIP_NETIF_LINK_CALLBACK 0
#endif
/**
* LWIP_NETIF_REMOVE_CALLBACK==1: Support a callback function that is called
* when a netif has been removed
*/
#ifndef LWIP_NETIF_REMOVE_CALLBACK
#define LWIP_NETIF_REMOVE_CALLBACK 0
#endif
/**
* LWIP_NETIF_HWADDRHINT==1: Cache link-layer-address hints (e.g. table
* indices) in struct netif. TCP and UDP can make use of this to prevent