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Fix my breakage to the low-level hardware sync drivers brought by the

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inclusion of VJ compression into sppp.

Now, instead of the need to include this and that and everything plus
the kitchensink in each of those drivers, struct sppp uses struct
slcompress as an opaque structure only referenced by a pointer.  The
actual structure is then malloced at initialization time.

While i was at it, also fixed a bug where received VJ packets would only
be recognized if INET6 was defined.
This commit is contained in:
Joerg Wunsch 2001-12-28 23:20:12 +00:00
parent 116f97b066
commit 47d6b4a644
2 changed files with 36 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sys/net/if_sppp.h
View File

@ -154,7 +154,7 @@ struct sppp {
struct sipcp ipv6cp; /* IPv6CP params */
struct sauth myauth; /* auth params, i'm peer */
struct sauth hisauth; /* auth params, i'm authenticator */
struct slcompress pp_comp; /* for VJ compression */
struct slcompress *pp_comp; /* for VJ compression */
/*
* These functions are filled in by sppp_attach(), and are
* expected to be used by the lower layer (hardware) drivers

69
sys/net/if_spppsubr.c
View File

@ -80,8 +80,6 @@
# else
# include <net/ethertypes.h>
# endif
#else
# error Huh? sppp without INET?
#endif
#ifdef IPX
@ -586,6 +584,34 @@ sppp_input(struct ifnet *ifp, struct mbuf *m)
}
do_account++;
break;
case PPP_VJ_COMP:
if (sp->state[IDX_IPCP] == STATE_OPENED) {
if ((len =
sl_uncompress_tcp((u_char **)&m->m_data,
m->m_len,
TYPE_COMPRESSED_TCP,
sp->pp_comp)) <= 0)
goto drop;
m->m_len = m->m_pkthdr.len = len;
schednetisr (NETISR_IP);
inq = &ipintrq;
}
do_account++;
break;
case PPP_VJ_UCOMP:
if (sp->state[IDX_IPCP] == STATE_OPENED) {
if ((len =
sl_uncompress_tcp((u_char **)&m->m_data,
m->m_len,
TYPE_UNCOMPRESSED_TCP,
sp->pp_comp)) <= 0)
goto drop;
m->m_len = m->m_pkthdr.len = len;
schednetisr (NETISR_IP);
inq = &ipintrq;
}
do_account++;
break;
#endif
#ifdef INET6
case PPP_IPV6CP:
@ -601,32 +627,6 @@ sppp_input(struct ifnet *ifp, struct mbuf *m)
}
do_account++;
break;
case PPP_VJ_COMP:
if (sp->state[IDX_IPCP] == STATE_OPENED) {
if ((len =
sl_uncompress_tcp((u_char **)&m->m_data,
m->m_len,
TYPE_COMPRESSED_TCP,
&sp->pp_comp)) <= 0)
goto drop;
m->m_len = m->m_pkthdr.len = len;
schednetisr (NETISR_IP);
inq = &ipintrq;
}
break;
case PPP_VJ_UCOMP:
if (sp->state[IDX_IPCP] == STATE_OPENED) {
if ((len =
sl_uncompress_tcp((u_char **)&m->m_data,
m->m_len,
TYPE_UNCOMPRESSED_TCP,
&sp->pp_comp)) <= 0)
goto drop;
m->m_len = m->m_pkthdr.len = len;
schednetisr (NETISR_IP);
inq = &ipintrq;
}
break;
#endif
#ifdef IPX
case PPP_IPX:
@ -814,7 +814,7 @@ sppp_output(struct ifnet *ifp, struct mbuf *m,
*/
if (sp->pp_mode != IFF_CISCO && (sp->ipcp.flags & IPCP_VJ) &&
ip->ip_p == IPPROTO_TCP)
switch (sl_compress_tcp(m, ip, &sp->pp_comp,
switch (sl_compress_tcp(m, ip, sp->pp_comp,
sp->ipcp.compress_cid)) {
case TYPE_COMPRESSED_TCP:
ipproto = PPP_VJ_COMP;
@ -974,9 +974,10 @@ sppp_attach(struct ifnet *ifp)
sp->pp_down = lcp.Down;
mtx_init(&sp->pp_cpq.ifq_mtx, "sppp_cpq", MTX_DEF);
mtx_init(&sp->pp_fastq.ifq_mtx, "sppp_fastq", MTX_DEF);
sp->enable_vj = 1;
sp->pp_last_recv = sp->pp_last_sent = time_second;
sl_compress_init(&sp->pp_comp, -1);
sp->enable_vj = 1;
sp->pp_comp = malloc(sizeof(struct slcompress), M_TEMP, M_WAIT);
sl_compress_init(sp->pp_comp, -1);
sppp_lcp_init(sp);
sppp_ipcp_init(sp);
sppp_ipv6cp_init(sp);
@ -2931,7 +2932,7 @@ sppp_ipcp_RCR(struct sppp *sp, struct lcp_header *h, int len)
if (debug)
log(-1, "VJ [ack] ");
sp->ipcp.flags |= IPCP_VJ;
sl_compress_init(&sp->pp_comp, p[4]);
sl_compress_init(sp->pp_comp, p[4]);
sp->ipcp.max_state = p[4];
sp->ipcp.compress_cid = p[5];
continue;
@ -3108,7 +3109,7 @@ sppp_ipcp_RCN_nak(struct sppp *sp, struct lcp_header *h, int len)
log(-1, "[wantcomp %#04x] ",
desiredcomp);
if (desiredcomp == IPCP_COMP_VJ) {
sl_compress_init(&sp->pp_comp, p[4]);
sl_compress_init(sp->pp_comp, p[4]);
sp->ipcp.max_state = p[4];
sp->ipcp.compress_cid = p[5];
if (debug)
@ -4782,7 +4783,7 @@ sppp_set_ip_addr(struct sppp *sp, u_long src)
}
#endif
}
}
}
#ifdef INET6
/*