97 protohandlerin(struct libalias *la, struct ip *pip, struct alias_data *ah)  in protohandlerin()  argument
99 	AliasHandlePptpIn(la, pip, ah->lnk);  in protohandlerin()
104 protohandlerout(struct libalias *la, struct ip *pip, struct alias_data *ah)  in protohandlerout()  argument
106 	AliasHandlePptpOut(la, pip, ah->lnk);  in protohandlerout()
111 protohandlergrein(struct libalias *la, struct ip *pip, struct alias_data *ah)  in protohandlergrein()  argument
114 	    AliasHandlePptpGreIn(la, pip) == 0)  in protohandlergrein()
120 protohandlergreout(struct libalias *la, struct ip *pip, struct alias_data *ah)  in protohandlergreout()  argument
122 	if (AliasHandlePptpGreOut(la, pip) == 0)  in protohandlergreout()
291     struct ip *pip,		/* IP packet to examine/patch */  in AliasHandlePptpOut()  argument
301 	if ((cptr = AliasVerifyPptp(pip, &ctl_type)) == NULL)  in AliasHandlePptpOut()
337 		tc = (struct tcphdr *)ip_next(pip);  in AliasHandlePptpOut()
363     struct ip *pip,		/* IP packet to examine/patch */  in AliasHandlePptpIn()  argument
373 	if ((cptr = AliasVerifyPptp(pip, &ctl_type)) == NULL)  in AliasHandlePptpIn()
409 		tc = (struct tcphdr *)ip_next(pip);  in AliasHandlePptpIn()
429 AliasVerifyPptp(struct ip *pip, u_int16_t * ptype) /* IP packet to examine/patch */  in AliasVerifyPptp()  argument
436 	tc = (struct tcphdr *)ip_next(pip);  in AliasVerifyPptp()
437 	hlen = (pip->ip_hl + tc->th_off) << 2;  in AliasVerifyPptp()
438 	tlen = ntohs(pip->ip_len);  in AliasVerifyPptp()
466 AliasHandlePptpGreOut(struct libalias *la, struct ip *pip)  in AliasHandlePptpGreOut()  argument
471 	gr = (GreHdr *)ip_next(pip);  in AliasHandlePptpGreOut()
477 	lnk = FindPptpOutByPeerCallId(la, pip->ip_src, pip->ip_dst, gr->gh_call_id);  in AliasHandlePptpGreOut()
482 		DifferentialChecksum(&pip->ip_sum,  in AliasHandlePptpGreOut()
483 		    &alias_addr, &pip->ip_src, 2);  in AliasHandlePptpGreOut()
484 		pip->ip_src = alias_addr;  in AliasHandlePptpGreOut()
490 AliasHandlePptpGreIn(struct libalias *la, struct ip *pip)  in AliasHandlePptpGreIn()  argument
495 	gr = (GreHdr *)ip_next(pip);  in AliasHandlePptpGreIn()
501 	lnk = FindPptpInByPeerCallId(la, pip->ip_src, pip->ip_dst, gr->gh_call_id);  in AliasHandlePptpGreIn()
509 		DifferentialChecksum(&pip->ip_sum,  in AliasHandlePptpGreIn()
510 		    &src_addr, &pip->ip_dst, 2);  in AliasHandlePptpGreIn()
511 		pip->ip_dst = src_addr;  in AliasHandlePptpGreIn()