-Index: ppp-2.4.3/include/linux/ppp-comp.h
-===================================================================
---- ppp-2.4.3.orig/include/linux/ppp-comp.h 2007-06-04 13:22:08.143617264 +0200
-+++ ppp-2.4.3/include/linux/ppp-comp.h 2007-06-04 13:22:12.031026288 +0200
+--- a/include/linux/ppp-comp.h
++++ b/include/linux/ppp-comp.h
@@ -36,7 +36,7 @@
*/
*
* NOTE TO MAINTAINERS:
* If you modify this file at all, please set the above date.
-@@ -86,7 +86,7 @@
-
- /* Compress a packet */
- int (*compress) (void *state, unsigned char *rptr,
-- unsigned char *obuf, int isize, int osize);
-+ unsigned char *obuf, int isize, int osize);
-
- /* Return compression statistics */
- void (*comp_stat) (void *state, struct compstat *stats);
-@@ -107,7 +107,7 @@
-
- /* Decompress a packet. */
- int (*decompress) (void *state, unsigned char *ibuf, int isize,
-- unsigned char *obuf, int osize);
-+ unsigned char *obuf, int osize);
-
- /* Update state for an incompressible packet received */
- void (*incomp) (void *state, unsigned char *ibuf, int icnt);
-@@ -288,6 +288,33 @@
- opts |= MPPE_OPT_UNKNOWN; \
- } while (/* CONSTCOND */ 0)
+@@ -201,6 +201,33 @@ struct compressor {
+ #define CI_MPPE 18 /* config option for MPPE */
+ #define CILEN_MPPE 6 /* length of config option */
+/* MPPE/MPPC definitions by J.D.*/
+#define MPPE_STATELESS MPPE_H_BIT /* configuration bit H */
/*
* Definitions for other, as yet unsupported, compression methods.
*/
-Index: ppp-2.4.3/include/net/ppp-comp.h
-===================================================================
---- ppp-2.4.3.orig/include/net/ppp-comp.h 2007-06-04 13:22:08.150616200 +0200
-+++ ppp-2.4.3/include/net/ppp-comp.h 2007-06-04 13:22:12.031026288 +0200
-@@ -255,6 +255,33 @@
- opts |= MPPE_OPT_UNKNOWN; \
- } while (/* CONSTCOND */ 0)
+--- a/include/net/ppp-comp.h
++++ b/include/net/ppp-comp.h
+@@ -168,6 +168,33 @@ struct compressor {
+ #define CI_MPPE 18 /* config option for MPPE */
+ #define CILEN_MPPE 6 /* length of config option */
+/* MPPE/MPPC definitions by J.D.*/
+#define MPPE_STATELESS MPPE_H_BIT /* configuration bit H */
/*
* Definitions for other, as yet unsupported, compression methods.
*/
-Index: ppp-2.4.3/pppd/ccp.c
-===================================================================
---- ppp-2.4.3.orig/pppd/ccp.c 2007-06-04 13:22:08.157615136 +0200
-+++ ppp-2.4.3/pppd/ccp.c 2007-06-04 13:22:12.033025984 +0200
-@@ -62,12 +62,10 @@
+--- a/pppd/ccp.c
++++ b/pppd/ccp.c
+@@ -62,12 +62,10 @@ static int setdeflate __P((char **));
static char bsd_value[8];
static char deflate_value[8];
static option_t ccp_option_list[] = {
{ "noccp", o_bool, &ccp_protent.enabled_flag,
-@@ -108,54 +106,36 @@
+@@ -108,54 +106,36 @@ static option_t ccp_option_list[] = {
"don't allow Predictor-1", OPT_ALIAS | OPT_PRIOSUB | OPT_A2CLR,
&ccp_allowoptions[0].predictor_1 },
#endif /* MPPE */
{ NULL }
-@@ -241,7 +221,7 @@
+@@ -241,7 +221,7 @@ static fsm_callbacks ccp_callbacks = {
*/
#define ANY_COMPRESS(opt) ((opt).deflate || (opt).bsd_compress \
|| (opt).predictor_1 || (opt).predictor_2 \
/*
* Local state (mainly for handling reset-reqs and reset-acks).
-@@ -344,6 +324,100 @@
+@@ -344,6 +324,100 @@ setdeflate(argv)
return 1;
}
/*
* ccp_init - initialize CCP.
*/
-@@ -378,6 +452,30 @@
+@@ -378,6 +452,30 @@ ccp_init(unit)
ccp_allowoptions[0].bsd_bits = BSD_MAX_BITS;
ccp_allowoptions[0].predictor_1 = 1;
}
/*
-@@ -455,11 +553,11 @@
+@@ -455,11 +553,11 @@ ccp_input(unit, p, len)
if (oldstate == OPENED && p[0] == TERMREQ && f->state != OPENED) {
notice("Compression disabled by peer.");
#ifdef MPPE
}
/*
-@@ -487,6 +585,15 @@
+@@ -487,6 +585,15 @@ ccp_extcode(f, code, id, p, len)
break;
/* send a reset-ack, which the transmitter will see and
reset its compression state. */
fsm_sdata(f, CCP_RESETACK, id, NULL, 0);
break;
-@@ -515,12 +622,11 @@
+@@ -515,12 +622,11 @@ ccp_protrej(unit)
fsm_lowerdown(&ccp_fsm[unit]);
#ifdef MPPE
}
/*
-@@ -537,7 +643,7 @@
+@@ -537,7 +643,7 @@ ccp_resetci(f)
all_rejected[f->unit] = 0;
#ifdef MPPE
ccp_options *ao = &ccp_allowoptions[f->unit];
int auth_mschap_bits = auth_done[f->unit];
int numbits;
-@@ -551,80 +657,109 @@
+@@ -551,80 +657,109 @@ ccp_resetci(f)
* NB: If MPPE is required, all other compression opts are invalid.
* So, we return right away if we can't do it.
*/
if (go->bsd_compress) {
opt_buf[0] = CI_BSD_COMPRESS;
opt_buf[1] = CILEN_BSD_COMPRESS;
-@@ -679,7 +814,8 @@
+@@ -679,7 +814,8 @@ ccp_cilen(f)
+ (go->deflate? CILEN_DEFLATE: 0)
+ (go->predictor_1? CILEN_PREDICTOR_1: 0)
+ (go->predictor_2? CILEN_PREDICTOR_2: 0)
}
/*
-@@ -693,6 +829,8 @@
+@@ -693,6 +829,8 @@ ccp_addci(f, p, lenp)
{
int res;
ccp_options *go = &ccp_gotoptions[f->unit];
u_char *p0 = p;
/*
-@@ -701,22 +839,43 @@
+@@ -701,22 +839,43 @@ ccp_addci(f, p, lenp)
* in case it gets Acked.
*/
#ifdef MPPE
if (go->deflate) {
p[0] = go->deflate_correct? CI_DEFLATE: CI_DEFLATE_DRAFT;
p[1] = CILEN_DEFLATE;
-@@ -802,7 +961,7 @@
+@@ -802,7 +961,7 @@ ccp_addci(f, p, lenp)
/*
* ccp_ackci - process a received configure-ack, and return
*/
static int
ccp_ackci(f, p, len)
-@@ -811,24 +970,44 @@
+@@ -811,24 +970,44 @@ ccp_ackci(f, p, len)
int len;
{
ccp_options *go = &ccp_gotoptions[f->unit];
if (go->deflate) {
if (len < CILEN_DEFLATE
|| p[0] != (go->deflate_correct? CI_DEFLATE: CI_DEFLATE_DRAFT)
-@@ -891,7 +1070,7 @@
-
- /*
- * ccp_nakci - process received configure-nak.
-- * Returns 1 iff the nak was OK.
-+ * Returns 1 if the nak was OK.
- */
- static int
- ccp_nakci(f, p, len, treat_as_reject)
-@@ -900,6 +1079,8 @@
- int len;
+@@ -901,6 +1080,8 @@ ccp_nakci(f, p, len, treat_as_reject)
+ int treat_as_reject;
{
ccp_options *go = &ccp_gotoptions[f->unit];
+ ccp_options *ao = &ccp_allowoptions[f->unit];
ccp_options no; /* options we've seen already */
ccp_options try; /* options to ask for next time */
-@@ -907,28 +1088,100 @@
+@@ -908,28 +1089,100 @@ ccp_nakci(f, p, len, treat_as_reject)
try = *go;
#ifdef MPPE
if (go->deflate && len >= CILEN_DEFLATE
&& p[0] == (go->deflate_correct? CI_DEFLATE: CI_DEFLATE_DRAFT)
&& p[1] == CILEN_DEFLATE) {
-@@ -1001,14 +1254,50 @@
+@@ -1002,14 +1255,50 @@ ccp_rejci(f, p, len)
return -1;
#ifdef MPPE
if (go->deflate_correct && len >= CILEN_DEFLATE
&& p[0] == CI_DEFLATE && p[1] == CILEN_DEFLATE) {
if (p[2] != DEFLATE_MAKE_OPT(go->deflate_size)
-@@ -1072,14 +1361,15 @@
+@@ -1073,14 +1362,15 @@ ccp_reqci(f, p, lenp, dont_nak)
int dont_nak;
{
int ret, newret, res;
ret = CONFACK;
retp = p0 = p;
-@@ -1102,103 +1392,305 @@
+@@ -1103,106 +1393,302 @@ ccp_reqci(f, p, lenp, dont_nak)
switch (type) {
#ifdef MPPE
case CI_MPPE:
- if (!ao->mppe || clen != CILEN_MPPE) {
-+ if ((!ao->mppc && !ao->mppe) || clen != CILEN_MPPE) {
++ if ((!ao->mppc && !ao->mppe) || clen != CILEN_MPPE) {
newret = CONFREJ;
break;
}
- MPPE_CI_TO_OPTS(&p[2], ho->mppe);
-
+-
- /* Nak if anything unsupported or unknown are set. */
- if (ho->mppe & MPPE_OPT_UNSUPPORTED) {
- newret = CONFNAK;
- ho->mppe &= ~MPPE_OPT_UNSUPPORTED;
- }
- if (ho->mppe & MPPE_OPT_UNKNOWN) {
-+ p2 = p[2];
-+ p5 = p[5];
-+ /* not sure what they want, tell 'em what we got */
-+ if (((p[2] & ~MPPE_STATELESS) != 0 || p[3] != 0 || p[4] != 0 ||
-+ (p[5] & ~(MPPE_40BIT | MPPE_56BIT | MPPE_128BIT |
-+ MPPE_MPPC)) != 0 || p[5] == 0) ||
-+ (p[2] == 0 && p[3] == 0 && p[4] == 0 && p[5] == 0)) {
++ p2 = p[2];
++ p5 = p[5];
++ /* not sure what they want, tell 'em what we got */
++ if (((p[2] & ~MPPE_STATELESS) != 0 || p[3] != 0 || p[4] != 0 ||
++ (p[5] & ~(MPPE_40BIT | MPPE_56BIT | MPPE_128BIT |
++ MPPE_MPPC)) != 0 || p[5] == 0) ||
++ (p[2] == 0 && p[3] == 0 && p[4] == 0 && p[5] == 0)) {
newret = CONFNAK;
- ho->mppe &= ~MPPE_OPT_UNKNOWN;
-+ p[2] = (wo->mppe_stateless ? MPPE_STATELESS : 0);
-+ p[3] = 0;
-+ p[4] = 0;
-+ p[5] = (wo->mppe_40 ? MPPE_40BIT : 0) |
-+ (wo->mppe_56 ? MPPE_56BIT : 0) |
-+ (wo->mppe_128 ? MPPE_128BIT : 0) |
-+ (wo->mppc ? MPPE_MPPC : 0);
-+ break;
- }
-
+- }
+-
- /* Check state opt */
- if (ho->mppe & MPPE_OPT_STATEFUL) {
- /*
- */
- if (refuse_mppe_stateful) {
- error("Refusing MPPE stateful mode offered by peer");
-+ if ((p[5] & MPPE_MPPC)) {
-+ if (ao->mppc) {
-+ ho->mppc = 1;
-+ BCOPY(p, opt_buf, CILEN_MPPE);
-+ opt_buf[2] = opt_buf[3] = opt_buf[4] = 0;
-+ opt_buf[5] = MPPE_MPPC;
-+ if (ccp_test(f->unit, opt_buf, CILEN_MPPE, 1) <= 0) {
-+ ho->mppc = 0;
-+ p[5] &= ~MPPE_MPPC;
-+ newret = CONFNAK;
-+ }
-+ } else {
- newret = CONFREJ;
+- newret = CONFREJ;
- break;
-+ if (wo->mppe || ao->mppe) {
-+ p[5] &= ~MPPE_MPPC;
-+ newret = CONFNAK;
-+ }
-+ }
-+ }
-+
-+ if (ao->mppe)
-+ ho->mppe = 1;
++ p[2] = (wo->mppe_stateless ? MPPE_STATELESS : 0);
++ p[3] = 0;
++ p[4] = 0;
++ p[5] = (wo->mppe_40 ? MPPE_40BIT : 0) |
++ (wo->mppe_56 ? MPPE_56BIT : 0) |
++ (wo->mppe_128 ? MPPE_128BIT : 0) |
++ (wo->mppc ? MPPE_MPPC : 0);
++ break;
++ }
+
-+ if ((p[2] & MPPE_STATELESS)) {
-+ if (ao->mppe_stateless) {
-+ if (wo->mppe_stateless)
-+ ho->mppe_stateless = 1;
-+ else {
-+ newret = CONFNAK;
-+ if (!dont_nak)
-+ p[2] &= ~MPPE_STATELESS;
-+ }
-+ } else {
-+ newret = CONFNAK;
-+ if (!dont_nak)
-+ p[2] &= ~MPPE_STATELESS;
-+ }
-+ } else {
-+ if (wo->mppe_stateless && !dont_nak) {
-+ wo->mppe_stateless = 0;
-+ newret = CONFNAK;
-+ p[2] |= MPPE_STATELESS;
++ if ((p[5] & MPPE_MPPC)) {
++ if (ao->mppc) {
++ ho->mppc = 1;
++ BCOPY(p, opt_buf, CILEN_MPPE);
++ opt_buf[2] = opt_buf[3] = opt_buf[4] = 0;
++ opt_buf[5] = MPPE_MPPC;
++ if (ccp_test(f->unit, opt_buf, CILEN_MPPE, 1) <= 0) {
++ ho->mppc = 0;
++ p[5] &= ~MPPE_MPPC;
++ newret = CONFNAK;
++ }
++ } else {
++ newret = CONFREJ;
++ if (wo->mppe || ao->mppe) {
++ p[5] &= ~MPPE_MPPC;
++ newret = CONFNAK;
++ }
}
}
-
+-
- /* Find out which of {S,L} are set. */
- if ((ho->mppe & MPPE_OPT_128)
- && (ho->mppe & MPPE_OPT_40)) {
- /* Both are set, negotiate the strongest. */
-+ if ((p[5] & ~MPPE_MPPC) == (MPPE_40BIT|MPPE_56BIT|MPPE_128BIT)) {
- newret = CONFNAK;
+- newret = CONFNAK;
- if (ao->mppe & MPPE_OPT_128)
- ho->mppe &= ~MPPE_OPT_40;
- else if (ao->mppe & MPPE_OPT_40)
- else {
- newret = CONFREJ;
- break;
-+ if (ao->mppe_128) {
-+ ho->mppe_128 = 1;
-+ p[5] &= ~(MPPE_40BIT|MPPE_56BIT);
-+ BCOPY(p, opt_buf, CILEN_MPPE);
-+ BCOPY(mppe_send_key, &opt_buf[CILEN_MPPE],
-+ MPPE_MAX_KEY_LEN);
-+ if (ccp_test(f->unit, opt_buf, CILEN_MPPE +
-+ MPPE_MAX_KEY_LEN, 1) <= 0) {
-+ ho->mppe_128 = 0;
-+ p[5] |= (MPPE_40BIT|MPPE_56BIT);
-+ p[5] &= ~MPPE_128BIT;
-+ goto check_mppe_56_40;
-+ }
-+ goto check_mppe;
- }
+- }
- } else if (ho->mppe & MPPE_OPT_128) {
- if (!(ao->mppe & MPPE_OPT_128)) {
- newret = CONFREJ;
- break;
-+ p[5] &= ~MPPE_128BIT;
-+ goto check_mppe_56_40;
-+ }
-+ if ((p[5] & ~MPPE_MPPC) == (MPPE_56BIT|MPPE_128BIT)) {
-+ newret = CONFNAK;
-+ if (ao->mppe_128) {
-+ ho->mppe_128 = 1;
-+ p[5] &= ~MPPE_56BIT;
-+ BCOPY(p, opt_buf, CILEN_MPPE);
-+ BCOPY(mppe_send_key, &opt_buf[CILEN_MPPE],
-+ MPPE_MAX_KEY_LEN);
-+ if (ccp_test(f->unit, opt_buf, CILEN_MPPE +
-+ MPPE_MAX_KEY_LEN, 1) <= 0) {
-+ ho->mppe_128 = 0;
-+ p[5] |= MPPE_56BIT;
-+ p[5] &= ~MPPE_128BIT;
-+ goto check_mppe_56;
-+ }
-+ goto check_mppe;
- }
+- }
- } else if (ho->mppe & MPPE_OPT_40) {
- if (!(ao->mppe & MPPE_OPT_40)) {
- newret = CONFREJ;
- break;
-+ p[5] &= ~MPPE_128BIT;
-+ goto check_mppe_56;
-+ }
-+ if ((p[5] & ~MPPE_MPPC) == (MPPE_40BIT|MPPE_128BIT)) {
-+ newret = CONFNAK;
-+ if (ao->mppe_128) {
-+ ho->mppe_128 = 1;
-+ p[5] &= ~MPPE_40BIT;
-+ BCOPY(p, opt_buf, CILEN_MPPE);
+- }
++ if (ao->mppe)
++ ho->mppe = 1;
++
++ if ((p[2] & MPPE_STATELESS)) {
++ if (ao->mppe_stateless) {
++ if (wo->mppe_stateless)
++ ho->mppe_stateless = 1;
++ else {
++ newret = CONFNAK;
++ if (!dont_nak)
++ p[2] &= ~MPPE_STATELESS;
++ }
++ } else {
++ newret = CONFNAK;
++ if (!dont_nak)
++ p[2] &= ~MPPE_STATELESS;
++ }
++ } else {
++ if (wo->mppe_stateless && !dont_nak) {
++ wo->mppe_stateless = 0;
++ newret = CONFNAK;
++ p[2] |= MPPE_STATELESS;
++ }
++ }
++
++ if ((p[5] & ~MPPE_MPPC) == (MPPE_40BIT|MPPE_56BIT|MPPE_128BIT)) {
++ newret = CONFNAK;
++ if (ao->mppe_128) {
++ ho->mppe_128 = 1;
++ p[5] &= ~(MPPE_40BIT|MPPE_56BIT);
++ BCOPY(p, opt_buf, CILEN_MPPE);
++ BCOPY(mppe_send_key, &opt_buf[CILEN_MPPE],
++ MPPE_MAX_KEY_LEN);
++ if (ccp_test(f->unit, opt_buf, CILEN_MPPE +
++ MPPE_MAX_KEY_LEN, 1) <= 0) {
++ ho->mppe_128 = 0;
++ p[5] |= (MPPE_40BIT|MPPE_56BIT);
++ p[5] &= ~MPPE_128BIT;
++ goto check_mppe_56_40;
++ }
++ goto check_mppe;
++ }
++ p[5] &= ~MPPE_128BIT;
++ goto check_mppe_56_40;
++ }
++ if ((p[5] & ~MPPE_MPPC) == (MPPE_56BIT|MPPE_128BIT)) {
++ newret = CONFNAK;
++ if (ao->mppe_128) {
++ ho->mppe_128 = 1;
++ p[5] &= ~MPPE_56BIT;
++ BCOPY(p, opt_buf, CILEN_MPPE);
+ BCOPY(mppe_send_key, &opt_buf[CILEN_MPPE],
-+ MPPE_MAX_KEY_LEN);
-+ if (ccp_test(f->unit, opt_buf, CILEN_MPPE +
-+ MPPE_MAX_KEY_LEN, 1) <= 0) {
-+ ho->mppe_128 = 0;
-+ p[5] |= MPPE_40BIT;
-+ p[5] &= ~MPPE_128BIT;
-+ goto check_mppe_40;
-+ }
-+ goto check_mppe;
-+ }
++ MPPE_MAX_KEY_LEN);
++ if (ccp_test(f->unit, opt_buf, CILEN_MPPE +
++ MPPE_MAX_KEY_LEN, 1) <= 0) {
++ ho->mppe_128 = 0;
++ p[5] |= MPPE_56BIT;
++ p[5] &= ~MPPE_128BIT;
++ goto check_mppe_56;
++ }
++ goto check_mppe;
++ }
++ p[5] &= ~MPPE_128BIT;
++ goto check_mppe_56;
++ }
++ if ((p[5] & ~MPPE_MPPC) == (MPPE_40BIT|MPPE_128BIT)) {
++ newret = CONFNAK;
++ if (ao->mppe_128) {
++ ho->mppe_128 = 1;
++ p[5] &= ~MPPE_40BIT;
++ BCOPY(p, opt_buf, CILEN_MPPE);
++ BCOPY(mppe_send_key, &opt_buf[CILEN_MPPE],
++ MPPE_MAX_KEY_LEN);
++ if (ccp_test(f->unit, opt_buf, CILEN_MPPE +
++ MPPE_MAX_KEY_LEN, 1) <= 0) {
++ ho->mppe_128 = 0;
++ p[5] |= MPPE_40BIT;
++ p[5] &= ~MPPE_128BIT;
++ goto check_mppe_40;
++ }
++ goto check_mppe;
++ }
++ p[5] &= ~MPPE_128BIT;
++ goto check_mppe_40;
++ }
++ if ((p[5] & ~MPPE_MPPC) == MPPE_128BIT) {
++ if (ao->mppe_128) {
++ ho->mppe_128 = 1;
++ BCOPY(p, opt_buf, CILEN_MPPE);
++ BCOPY(mppe_send_key, &opt_buf[CILEN_MPPE],
++ MPPE_MAX_KEY_LEN);
++ if (ccp_test(f->unit, opt_buf, CILEN_MPPE +
++ MPPE_MAX_KEY_LEN, 1) <= 0) {
++ ho->mppe_128 = 0;
++ p[5] &= ~MPPE_128BIT;
++ newret = CONFNAK;
++ }
++ goto check_mppe;
++ }
+ p[5] &= ~MPPE_128BIT;
-+ goto check_mppe_40;
-+ }
-+ if ((p[5] & ~MPPE_MPPC) == MPPE_128BIT) {
-+ if (ao->mppe_128) {
-+ ho->mppe_128 = 1;
-+ BCOPY(p, opt_buf, CILEN_MPPE);
-+ BCOPY(mppe_send_key, &opt_buf[CILEN_MPPE],
-+ MPPE_MAX_KEY_LEN);
-+ if (ccp_test(f->unit, opt_buf, CILEN_MPPE +
-+ MPPE_MAX_KEY_LEN, 1) <= 0) {
-+ ho->mppe_128 = 0;
-+ p[5] &= ~MPPE_128BIT;
-+ newret = CONFNAK;
-+ }
-+ goto check_mppe;
-+ }
-+ p[5] &= ~MPPE_128BIT;
-+ newret = CONFNAK;
-+ goto check_mppe;
-+ }
-+ check_mppe_56_40:
++ newret = CONFNAK;
++ goto check_mppe;
++ }
++ check_mppe_56_40:
+ if ((p[5] & ~MPPE_MPPC) == (MPPE_40BIT|MPPE_56BIT)) {
-+ newret = CONFNAK;
-+ if (ao->mppe_56) {
-+ ho->mppe_56 = 1;
-+ p[5] &= ~MPPE_40BIT;
++ newret = CONFNAK;
++ if (ao->mppe_56) {
++ ho->mppe_56 = 1;
++ p[5] &= ~MPPE_40BIT;
+ BCOPY(p, opt_buf, CILEN_MPPE);
-+ BCOPY(mppe_send_key, &opt_buf[CILEN_MPPE],
-+ MPPE_MAX_KEY_LEN);
-+ if (ccp_test(f->unit, opt_buf, CILEN_MPPE +
++ BCOPY(mppe_send_key, &opt_buf[CILEN_MPPE],
++ MPPE_MAX_KEY_LEN);
++ if (ccp_test(f->unit, opt_buf, CILEN_MPPE +
+ MPPE_MAX_KEY_LEN, 1) <= 0) {
-+ ho->mppe_56 = 0;
-+ p[5] |= MPPE_40BIT;
-+ p[5] &= ~MPPE_56BIT;
++ ho->mppe_56 = 0;
++ p[5] |= MPPE_40BIT;
++ p[5] &= ~MPPE_56BIT;
+ newret = CONFNAK;
-+ goto check_mppe_40;
-+ }
++ goto check_mppe_40;
++ }
+ goto check_mppe;
-+ }
++ }
+ p[5] &= ~MPPE_56BIT;
-+ goto check_mppe_40;
-+ }
-+ check_mppe_56:
++ goto check_mppe_40;
++ }
++ check_mppe_56:
+ if ((p[5] & ~MPPE_MPPC) == MPPE_56BIT) {
-+ if (ao->mppe_56) {
-+ ho->mppe_56 = 1;
-+ BCOPY(p, opt_buf, CILEN_MPPE);
-+ BCOPY(mppe_send_key, &opt_buf[CILEN_MPPE],
++ if (ao->mppe_56) {
++ ho->mppe_56 = 1;
++ BCOPY(p, opt_buf, CILEN_MPPE);
++ BCOPY(mppe_send_key, &opt_buf[CILEN_MPPE],
+ MPPE_MAX_KEY_LEN);
-+ if (ccp_test(f->unit, opt_buf, CILEN_MPPE +
-+ MPPE_MAX_KEY_LEN, 1) <= 0) {
-+ ho->mppe_56 = 0;
-+ p[5] &= ~MPPE_56BIT;
++ if (ccp_test(f->unit, opt_buf, CILEN_MPPE +
++ MPPE_MAX_KEY_LEN, 1) <= 0) {
++ ho->mppe_56 = 0;
++ p[5] &= ~MPPE_56BIT;
+ newret = CONFNAK;
-+ }
++ }
+ goto check_mppe;
-+ }
-+ p[5] &= ~MPPE_56BIT;
-+ newret = CONFNAK;
++ }
++ p[5] &= ~MPPE_56BIT;
++ newret = CONFNAK;
+ goto check_mppe;
-+ }
-+ check_mppe_40:
++ }
++ check_mppe_40:
+ if ((p[5] & ~MPPE_MPPC) == MPPE_40BIT) {
-+ if (ao->mppe_40) {
-+ ho->mppe_40 = 1;
-+ BCOPY(p, opt_buf, CILEN_MPPE);
++ if (ao->mppe_40) {
++ ho->mppe_40 = 1;
++ BCOPY(p, opt_buf, CILEN_MPPE);
+ BCOPY(mppe_send_key, &opt_buf[CILEN_MPPE],
-+ MPPE_MAX_KEY_LEN);
-+ if (ccp_test(f->unit, opt_buf, CILEN_MPPE +
-+ MPPE_MAX_KEY_LEN, 1) <= 0) {
-+ ho->mppe_40 = 0;
++ MPPE_MAX_KEY_LEN);
++ if (ccp_test(f->unit, opt_buf, CILEN_MPPE +
++ MPPE_MAX_KEY_LEN, 1) <= 0) {
++ ho->mppe_40 = 0;
+ p[5] &= ~MPPE_40BIT;
-+ newret = CONFNAK;
-+ }
-+ goto check_mppe;
-+ }
-+ p[5] &= ~MPPE_40BIT;
-+ }
-+
-+ check_mppe:
-+ if (!ho->mppe_40 && !ho->mppe_56 && !ho->mppe_128) {
-+ if (wo->mppe_40 || wo->mppe_56 || wo->mppe_128) {
-+ newret = CONFNAK;
-+ p[2] |= (wo->mppe_stateless ? MPPE_STATELESS : 0);
++ newret = CONFNAK;
++ }
++ goto check_mppe;
++ }
++ p[5] &= ~MPPE_40BIT;
++ }
++
++ check_mppe:
++ if (!ho->mppe_40 && !ho->mppe_56 && !ho->mppe_128) {
++ if (wo->mppe_40 || wo->mppe_56 || wo->mppe_128) {
++ newret = CONFNAK;
++ p[2] |= (wo->mppe_stateless ? MPPE_STATELESS : 0);
+ p[5] |= (wo->mppe_40 ? MPPE_40BIT : 0) |
-+ (wo->mppe_56 ? MPPE_56BIT : 0) |
-+ (wo->mppe_128 ? MPPE_128BIT : 0) |
-+ (wo->mppc ? MPPE_MPPC : 0);
-+ } else {
-+ ho->mppe = ho->mppe_stateless = 0;
- }
++ (wo->mppe_56 ? MPPE_56BIT : 0) |
++ (wo->mppe_128 ? MPPE_128BIT : 0) |
++ (wo->mppc ? MPPE_MPPC : 0);
++ } else {
++ ho->mppe = ho->mppe_stateless = 0;
++ }
} else {
- /* Neither are set. */
-+ /* MPPE is not compatible with other compression types */
-+ if (wo->mppe) {
-+ ao->bsd_compress = 0;
-+ ao->predictor_1 = 0;
-+ ao->predictor_2 = 0;
-+ ao->deflate = 0;
-+ ao->lzs = 0;
-+ }
-+ }
-+ if ((!ho->mppc || !ao->mppc) && !ho->mppe) {
-+ p[2] = p2;
-+ p[5] = p5;
- newret = CONFREJ;
- break;
- }
-
+- /* We cannot accept this. */
+- newret = CONFNAK;
+- /* Give the peer our idea of what can be used,
+- so it can choose and confirm */
+- ho->mppe = ao->mppe;
+- }
+-
- /* rebuild the opts */
- MPPE_OPTS_TO_CI(ho->mppe, &p[2]);
- if (newret == CONFACK) {
- else
- newret = CONFREJ;
- }
-+ /*
-+ * I have commented the code below because according to RFC1547
-+ * MTU is only information for higher level protocols about
-+ * "the maximum allowable length for a packet (q.v.) transmitted
-+ * over a point-to-point link without incurring network layer
-+ * fragmentation." Of course a PPP implementation should be able
-+ * to handle overhead added by MPPE - in our case apropriate code
-+ * is located in drivers/net/ppp_generic.c in the kernel sources.
-+ *
-+ * According to RFC1661:
-+ * - when negotiated MRU is less than 1500 octets, a PPP
-+ * implementation must still be able to receive at least 1500
-+ * octets,
-+ * - when PFC is negotiated, a PPP implementation is still
-+ * required to receive frames with uncompressed protocol field.
-+ *
-+ * So why not to handle MPPE overhead without changing MTU value?
-+ * I am sure that RFC3078, unfortunately silently, assumes that.
-+ */
-
- /*
+-
+- /*
- * We have accepted MPPE or are willing to negotiate
- * MPPE parameters. A CONFREJ is due to subsequent
- * (non-MPPE) processing.
-+ * We need to decrease the interface MTU by MPPE_PAD
-+ * because MPPE frames **grow**. The kernel [must]
-+ * allocate MPPE_PAD extra bytes in xmit buffers.
- */
+- */
- rej_for_ci_mppe = 0;
-+/*
-+ mtu = netif_get_mtu(f->unit);
-+ if (mtu) {
-+ netif_set_mtu(f->unit, mtu - MPPE_PAD);
-+ } else {
+- break;
+-#endif /* MPPE */
++ /* MPPE is not compatible with other compression types */
++ if (wo->mppe) {
++ ao->bsd_compress = 0;
++ ao->predictor_1 = 0;
++ ao->predictor_2 = 0;
++ ao->deflate = 0;
++ ao->lzs = 0;
++ }
++ }
++ if ((!ho->mppc || !ao->mppc) && !ho->mppe) {
++ p[2] = p2;
++ p[5] = p5;
++ newret = CONFREJ;
++ break;
++ }
++
++ /*
++ * I have commented the code below because according to RFC1547
++ * MTU is only information for higher level protocols about
++ * "the maximum allowable length for a packet (q.v.) transmitted
++ * over a point-to-point link without incurring network layer
++ * fragmentation." Of course a PPP implementation should be able
++ * to handle overhead added by MPPE - in our case apropriate code
++ * is located in drivers/net/ppp_generic.c in the kernel sources.
++ *
++ * According to RFC1661:
++ * - when negotiated MRU is less than 1500 octets, a PPP
++ * implementation must still be able to receive at least 1500
++ * octets,
++ * - when PFC is negotiated, a PPP implementation is still
++ * required to receive frames with uncompressed protocol field.
++ *
++ * So why not to handle MPPE overhead without changing MTU value?
++ * I am sure that RFC3078, unfortunately silently, assumes that.
++ */
++
++ /*
++ * We need to decrease the interface MTU by MPPE_PAD
++ * because MPPE frames **grow**. The kernel [must]
++ * allocate MPPE_PAD extra bytes in xmit buffers.
++ */
++ /*
++ mtu = netif_get_mtu(f->unit);
++ if (mtu) {
++ netif_set_mtu(f->unit, mtu - MPPE_PAD);
++ } else {
+ newret = CONFREJ;
-+ if (ccp_wantoptions[f->unit].mppe) {
-+ error("Cannot adjust MTU needed by MPPE.");
-+ lcp_close(f->unit, "Cannot adjust MTU needed by MPPE.");
-+ }
-+ }
-+*/
- break;
- #endif /* MPPE */
-+
++ if (ccp_wantoptions[f->unit].mppe) {
++ error("Cannot adjust MTU needed by MPPE.");
++ lcp_close(f->unit, "Cannot adjust MTU needed by MPPE.");
++ }
++ }
++ */
++ break;
++ #endif /* MPPE */
++
+ case CI_LZS:
-+ if (!ao->lzs || clen != CILEN_LZS) {
-+ newret = CONFREJ;
-+ break;
-+ }
-+
-+ ho->lzs = 1;
++ if (!ao->lzs || clen != CILEN_LZS) {
++ newret = CONFREJ;
++ break;
++ }
++
++ ho->lzs = 1;
+ ho->lzs_hists = (p[2] << 8) | p[3];
-+ ho->lzs_mode = p[4];
-+ if ((ho->lzs_hists != ao->lzs_hists) ||
++ ho->lzs_mode = p[4];
++ if ((ho->lzs_hists != ao->lzs_hists) ||
+ (ho->lzs_mode != ao->lzs_mode)) {
-+ newret = CONFNAK;
-+ if (!dont_nak) {
-+ p[2] = ao->lzs_hists >> 8;
-+ p[3] = ao->lzs_hists & 0xff;
-+ p[4] = ao->lzs_mode;
-+ } else
-+ break;
-+ }
-+
-+ if (p == p0 && ccp_test(f->unit, p, CILEN_LZS, 1) <= 0) {
-+ newret = CONFREJ;
-+ }
-+ break;
-+
++ newret = CONFNAK;
++ if (!dont_nak) {
++ p[2] = ao->lzs_hists >> 8;
++ p[3] = ao->lzs_hists & 0xff;
++ p[4] = ao->lzs_mode;
++ } else
++ break;
++ }
++
++ if (p == p0 && ccp_test(f->unit, p, CILEN_LZS, 1) <= 0) {
++ newret = CONFREJ;
++ }
++ break;
case CI_DEFLATE:
case CI_DEFLATE_DRAFT:
if (!ao->deflate || clen != CILEN_DEFLATE
-@@ -1340,12 +1832,6 @@
+@@ -1344,12 +1830,6 @@ ccp_reqci(f, p, lenp, dont_nak)
else
*lenp = retp - p0;
}
return ret;
}
-@@ -1367,24 +1853,35 @@
+@@ -1371,24 +1851,35 @@ method_name(opt, opt2)
char *p = result;
char *q = result + sizeof(result); /* 1 past result */
case CI_DEFLATE:
case CI_DEFLATE_DRAFT:
if (opt2 != NULL && opt2->deflate_size != opt->deflate_size)
-@@ -1440,12 +1937,12 @@
+@@ -1444,12 +1935,12 @@ ccp_up(f)
} else if (ANY_COMPRESS(*ho))
notice("%s transmit compression enabled", method_name(ho, NULL));
#ifdef MPPE
}
/*
-@@ -1468,7 +1965,7 @@
+@@ -1472,7 +1963,7 @@ ccp_down(f)
lcp_close(f->unit, "MPPE disabled");
}
}
}
/*
-@@ -1528,24 +2025,28 @@
+@@ -1532,24 +2023,28 @@ ccp_printpkt(p, plen, printer, arg)
#ifdef MPPE
case CI_MPPE:
if (optlen >= CILEN_MPPE) {
case CI_DEFLATE:
case CI_DEFLATE_DRAFT:
if (optlen >= CILEN_DEFLATE) {
-@@ -1631,6 +2132,7 @@
+@@ -1635,6 +2130,7 @@ ccp_datainput(unit, pkt, len)
error("Lost compression sync: disabling compression");
ccp_close(unit, "Lost compression sync");
#ifdef MPPE
/*
* If we were doing MPPE, we must also take the link down.
*/
-@@ -1638,9 +2140,18 @@
+@@ -1642,9 +2138,18 @@ ccp_datainput(unit, pkt, len)
error("Too many MPPE errors, closing LCP");
lcp_close(unit, "Too many MPPE errors");
}
* Send a reset-request to reset the peer's compressor.
* We don't do that if we are still waiting for an
* acknowledgement to a previous reset-request.
-@@ -1671,4 +2182,3 @@
- } else
- ccp_localstate[f->unit] &= ~RACK_PENDING;
- }
--
-Index: ppp-2.4.3/pppd/ccp.h
-===================================================================
---- ppp-2.4.3.orig/pppd/ccp.h 2007-06-04 13:22:08.162614376 +0200
-+++ ppp-2.4.3/pppd/ccp.h 2007-06-04 13:22:12.033025984 +0200
-@@ -37,9 +37,17 @@
+--- a/pppd/ccp.h
++++ b/pppd/ccp.h
+@@ -37,9 +37,17 @@ typedef struct ccp_options {
bool predictor_2; /* do Predictor-2? */
bool deflate_correct; /* use correct code for deflate? */
bool deflate_draft; /* use draft RFC code for deflate? */
short method; /* code for chosen compression method */
} ccp_options;
-Index: ppp-2.4.3/pppd/chap_ms.c
-===================================================================
---- ppp-2.4.3.orig/pppd/chap_ms.c 2007-06-04 13:22:08.168613464 +0200
-+++ ppp-2.4.3/pppd/chap_ms.c 2007-06-04 13:22:12.033025984 +0200
-@@ -895,13 +895,17 @@
+--- a/pppd/chap_ms.c
++++ b/pppd/chap_ms.c
+@@ -898,13 +898,17 @@ set_mppe_enc_types(int policy, int types
/*
* Disable undesirable encryption types. Note that we don't ENABLE
* any encryption types, to avoid overriding manual configuration.
break;
default:
break;
-Index: ppp-2.4.3/pppd/pppd.8
-===================================================================
---- ppp-2.4.3.orig/pppd/pppd.8 2007-06-04 13:22:08.175612400 +0200
-+++ ppp-2.4.3/pppd/pppd.8 2007-06-04 13:22:12.034025832 +0200
-@@ -622,9 +622,29 @@
- Enables the use of PPP multilink; this is an alias for the `multilink'
- option. This option is currently only available under Linux.
- .TP
--.B mppe\-stateful
--Allow MPPE to use stateful mode. Stateless mode is still attempted first.
--The default is to disallow stateful mode.
-+.B mppc
-+Enables MPPC (Microsoft Point to Point Compression). This is the default.
-+.TP
-+.B mppe \fIsubopt1[,subopt2[,subopt3[..]]]
-+Modify MPPE (Microsoft Point to Point Encryption) parameters. In order
-+for MPPE to successfully come up, you must have authenticated with either
-+MS-CHAP or MS-CHAPv2. By default MPPE is optional, it means that pppd will
-+not propose MPPE to the peer, but will negotiate MPPE if peer wants that.
-+You can change this using \fIrequired\fR suboption.
-+This option is presently only supported under Linux, and only if your
-+kernel has been configured to include MPPE support.
-+.IP
-+MPPE suboptions:
-+.br
-+\fIrequired\fR - require MPPE; disconnect if peer doesn't support it,
-+.br
-+\fIstateless\fR - try to negotiate stateless mode; default is stateful,
-+.br
-+\fIno40\fR - disable 40 bit keys,
-+.br
-+\fIno56\fR - disable 56 bit keys,
-+.br
-+\fIno128\fR - disable 128 bit keys
- .TP
- .B mpshortseq
- Enables the use of short (12-bit) sequence numbers in multilink
-@@ -757,17 +777,11 @@
- Disables the use of PPP multilink. This option is currently only
- available under Linux.
- .TP
--.B nomppe
--Disables MPPE (Microsoft Point to Point Encryption). This is the default.
--.TP
--.B nomppe\-40
--Disable 40-bit encryption with MPPE.
-+.B nomppc
-+Disables MPPC (Microsoft Point to Point Compression).
- .TP
--.B nomppe\-128
--Disable 128-bit encryption with MPPE.
--.TP
--.B nomppe\-stateful
--Disable MPPE stateful mode. This is the default.
-+.B nomppe
-+Disables MPPE (Microsoft Point to Point Encryption).
- .TP
- .B nompshortseq
- Disables the use of short (12-bit) sequence numbers in the PPP
-@@ -948,19 +962,6 @@
- Require the peer to authenticate itself using CHAP [Challenge
- Handshake Authentication Protocol] authentication.
- .TP
--.B require\-mppe
--Require the use of MPPE (Microsoft Point to Point Encryption). This
--option disables all other compression types. This option enables
--both 40-bit and 128-bit encryption. In order for MPPE to successfully
--come up, you must have authenticated with either MS\-CHAP or MS\-CHAPv2.
--This option is presently only supported under Linux, and only if your
--kernel has been configured to include MPPE support.
--.TP
--.B require\-mppe\-40
--Require the use of MPPE, with 40-bit encryption.
--.TP
--.B require\-mppe\-128
--Require the use of MPPE, with 128-bit encryption.
- .TP
- .B require\-mschap
- Require the peer to authenticate itself using MS\-CHAP [Microsoft Challenge
projects / openwrt.git / blobdiff