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Allow VPI/VCI 0/0 to be opened. This will be used by the IDT77252 driver

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to provide a "receive all cells" mode that can be used for monitoring.

Check only the relevant MTU size when NOTX or NORX flags are set.
This commit is contained in:
Hartmut Brandt 2003-07-02 11:52:46 +00:00
parent d5025f3020
commit 3fb1076132
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=117157
1 changed files with 22 additions and 9 deletions
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31
sys/netgraph/atm/ng_atm.c
View file

@ -92,6 +92,7 @@ struct ngvcc {
LIST_ENTRY(ngvcc) link;
};
#define VCC_OPEN 0x0001 /* open */
/*
* Node private data
@ -623,6 +624,7 @@ ng_atm_cpcs_init(node_p node, const struct ngm_atm_cpcs_init *arg)
switch (data.param.aal = arg->aal) {
case ATMIO_AAL_34:
case ATMIO_AAL_5:
case ATMIO_AAL_0:
case ATMIO_AAL_RAW:
@ -636,7 +638,10 @@ ng_atm_cpcs_init(node_p node, const struct ngm_atm_cpcs_init *arg)
return (EINVAL);
data.param.vpi = arg->vpi;
if (arg->vci == 0 || arg->vci > 0xffff)
if (arg->vci > 0xffff)
return (EINVAL);
/* allow 0.0 as catch all receive channel */
if (arg->vci == 0 && (arg->vpi != 0 || !(arg->flags & ATMIO_FLAG_NOTX)))
return (EINVAL);
data.param.vci = arg->vci;
@ -647,14 +652,22 @@ ng_atm_cpcs_init(node_p node, const struct ngm_atm_cpcs_init *arg)
data.param.tparam.mcr = arg->mcr;
if (!(arg->flags & ATMIO_FLAG_NOTX)) {
if (arg->tmtu > (1 << 16) || arg->tmtu == 0)
return (EINVAL);
data.param.tmtu = arg->tmtu;
if (arg->tmtu == 0)
data.param.tmtu = priv->ifp->if_mtu;
else {
if (arg->tmtu > (1 << 16))
return (EINVAL);
data.param.tmtu = arg->tmtu;
}
}
if (!(arg->flags & ATMIO_FLAG_NORX)) {
if (arg->rmtu > (1 << 16) || arg->rmtu == 0)
return (EINVAL);
data.param.rmtu = arg->rmtu;
if (arg->rmtu == 0)
data.param.rmtu = priv->ifp->if_mtu;
else {
if (arg->rmtu > (1 << 16))
return (EINVAL);
data.param.rmtu = arg->rmtu;
}
}
switch (data.param.traffic = arg->traffic) {
@ -723,7 +736,7 @@ ng_atm_cpcs_init(node_p node, const struct ngm_atm_cpcs_init *arg)
if (err == 0) {
vcc->vci = data.param.vci;
vcc->vpi = data.param.vpi;
vcc->flags = arg->flags;
vcc->flags = VCC_OPEN;
}
return (err);
@ -1169,7 +1182,7 @@ ng_atm_disconnect(hook_p hook)
}
/* don't terminate if we are detaching from the interface */
if (vcc->vci != 0 && priv->ifp != NULL)
if ((vcc->flags & VCC_OPEN) && priv->ifp != NULL)
(void)cpcs_term(priv, vcc->vpi, vcc->vci);
NG_HOOK_SET_PRIVATE(hook, NULL);