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Send a PADT message to the peer when a session is closed down.

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This commit is contained in:
Julian Elischer 1999-10-26 11:04:25 +00:00
parent 4b276f9051
commit 9fcb3d8332
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=52523
1 changed files with 35 additions and 1 deletions
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36
sys/netgraph/ng_pppoe.c
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@ -1,4 +1,4 @@
#define SIGNOFF "session closed"
/*
* ng_pppoe.c
*
@ -1081,6 +1081,10 @@ AAA
/* Packet too short, dump it */
LEAVE(EMSGSIZE);
}
if (m->m_pkthdr.len > length) {
m_adj(m, -((int)(m->m_pkthdr.len - length)));
}
/* XXX also need to trim excess at end I should think */
if ( sp->state != PPPOE_CONNECTED) {
if (sp->state == PPPOE_NEWCONNECTED) {
@ -1258,6 +1262,36 @@ AAA
if (sp->state != PPPOE_SNONE ) {
pppoe_send_event(sp, NGM_PPPOE_CLOSE);
}
if ((privp->ethernet_hook)
&& ((sp->state == PPPOE_CONNECTED)
|| (sp->state == PPPOE_NEWCONNECTED))) {
struct mbuf *m;
struct pppoe_full_hdr *wh;
struct pppoe_tag *tag;
int msglen = strlen(SIGNOFF);
void *dummy = NULL;
int error = 0;
/* revert the stored header to DISC/PADT mode */
wh = &sp->pkt_hdr;
wh->ph.code = PADT_CODE;
wh->eh.ether_type = ETHERTYPE_PPPOE_DISC;
/* generate a packet of that type */
MGETHDR(m, M_DONTWAIT, MT_DATA);
m->m_pkthdr.rcvif = NULL;
m->m_pkthdr.len = m->m_len = sizeof(*wh);
bcopy((caddr_t)wh, mtod(m, caddr_t), sizeof(*wh));
/* Add a General error message and adjust sizes */
wh = mtod(m, struct pppoe_full_hdr *);
tag = wh->ph.tag;
tag->tag_type = PTT_GEN_ERR;
tag->tag_len = htons((u_int16_t)msglen);
strncpy(tag->tag_data, SIGNOFF, msglen);
m->m_pkthdr.len = (m->m_len += sizeof(*tag) + msglen);
wh->ph.length = htons(sizeof(*tag) + msglen);
NG_MESSAGE_SEND(error, privp->ethernet_hook, m, dummy);
}
if (sp->neg) {
untimeout(pppoe_ticker, hook, sp->neg->timeout_handle);
if (sp->neg->m)