101 protohandlerin(struct libalias *la, struct ip *pip, struct alias_data *ah)  in protohandlerin()  argument
104 	AliasHandlePptpIn(la, pip, ah->lnk);  in protohandlerin()
109 protohandlerout(struct libalias *la, struct ip *pip, struct alias_data *ah)  in protohandlerout()  argument
112 	AliasHandlePptpOut(la, pip, ah->lnk);  in protohandlerout()
117 protohandlergrein(struct libalias *la, struct ip *pip, struct alias_data *ah)  in protohandlergrein()  argument
121 	    AliasHandlePptpGreIn(la, pip) == 0)  in protohandlergrein()
127 protohandlergreout(struct libalias *la, struct ip *pip, struct alias_data *ah)  in protohandlergreout()  argument
130 	if (AliasHandlePptpGreOut(la, pip) == 0)  in protohandlergreout()
300     struct ip *pip,		/* IP packet to examine/patch */  in AliasHandlePptpOut()  argument
310 	if ((cptr = AliasVerifyPptp(pip, &ctl_type)) == NULL)  in AliasHandlePptpOut()
347 		tc = (struct tcphdr *)ip_next(pip);  in AliasHandlePptpOut()
372     struct ip *pip,		/* IP packet to examine/patch */  in AliasHandlePptpIn()  argument
382 	if ((cptr = AliasVerifyPptp(pip, &ctl_type)) == NULL)  in AliasHandlePptpIn()
419 		tc = (struct tcphdr *)ip_next(pip);  in AliasHandlePptpIn()
437 AliasVerifyPptp(struct ip *pip, u_int16_t * ptype)  in AliasVerifyPptp()  argument
444 	tc = (struct tcphdr *)ip_next(pip);  in AliasVerifyPptp()
445 	hlen = (pip->ip_hl + tc->th_off) << 2;  in AliasVerifyPptp()
446 	tlen = ntohs(pip->ip_len);  in AliasVerifyPptp()
474 AliasHandlePptpGreOut(struct libalias *la, struct ip *pip)  in AliasHandlePptpGreOut()  argument
479 	gr = (GreHdr *) ip_next(pip);  in AliasHandlePptpGreOut()
485 	lnk = FindPptpOutByPeerCallId(la, pip->ip_src, pip->ip_dst, gr->gh_call_id);  in AliasHandlePptpGreOut()
490 		DifferentialChecksum(&pip->ip_sum,  in AliasHandlePptpGreOut()
491 		    &alias_addr, &pip->ip_src, 2);  in AliasHandlePptpGreOut()
492 		pip->ip_src = alias_addr;  in AliasHandlePptpGreOut()
498 AliasHandlePptpGreIn(struct libalias *la, struct ip *pip)  in AliasHandlePptpGreIn()  argument
503 	gr = (GreHdr *) ip_next(pip);  in AliasHandlePptpGreIn()
509 	lnk = FindPptpInByPeerCallId(la, pip->ip_src, pip->ip_dst, gr->gh_call_id);  in AliasHandlePptpGreIn()
517 		DifferentialChecksum(&pip->ip_sum,  in AliasHandlePptpGreIn()
518 		    &src_addr, &pip->ip_dst, 2);  in AliasHandlePptpGreIn()
519 		pip->ip_dst = src_addr;  in AliasHandlePptpGreIn()