From 84515f4b8b5a28b87c296f4e14fa9cf14591dcce Mon Sep 17 00:00:00 2001
From: Pau Espin Pedrol <pespin@sysmocom.de>
Date: Thu, 30 May 2019 18:10:55 +0200
Subject: pdp: Drop unused code for haship

Nowadays we have one tun device per APN, so we don't need this hash
table because we use the ippool of the APN to find the related PDP ctx
pointer.

Change-Id: Ife3f222daa87f0630ff34ffc3e63f4dad2ad914b
---
 gtp/pdp.c | 71 ---------------------------------------------------------------
 gtp/pdp.h |  7 -------
 2 files changed, 78 deletions(-)

diff --git a/gtp/pdp.c b/gtp/pdp.c
index 92fe5ec..a5146e9 100644
--- a/gtp/pdp.c
+++ b/gtp/pdp.c
@@ -38,7 +38,6 @@
 
 static struct pdp_t pdpa[PDP_MAX];	/* PDP storage */
 static struct pdp_t *hashtid[PDP_MAX];	/* Hash table for IMSI + NSAPI */
-/* struct pdp_t* haship[PDP_MAX];  Hash table for IP and network interface */
 
 /* ***********************************************************
  * Functions related to PDP storage
@@ -291,77 +290,7 @@ int pdp_getimsi(struct pdp_t **pdp, uint64_t imsi, uint8_t nsapi)
 			  ((uint64_t) nsapi << 60));
 }
 
-/*
-int pdp_iphash(void* ipif, struct ul66_t *eua) {
-  /#printf("IPhash %ld\n", lookup(eua->v, eua->l, ipif) % PDP_MAX);#/
-  return (lookup(eua->v, eua->l, ipif) % PDP_MAX);
-}
-
-int pdp_ipset(struct pdp_t *pdp, void* ipif, struct ul66_t *eua) {
-  int hash;
-  struct pdp_t *pdp2;
-  struct pdp_t *pdp_prev = NULL;
-
-  if (PDP_DEBUG) printf("Begin pdp_ipset %d %d %2x%2x%2x%2x\n",
-			(unsigned) ipif, eua->l,
-			eua->v[2], eua->v[3],
-			eua->v[4], eua->v[5]);
-
-  pdp->ipnext = NULL;
-  pdp->ipif = ipif;
-  pdp->eua.l = eua->l;
-  memcpy(pdp->eua.v, eua->v, eua->l);
-
-  hash = pdp_iphash(pdp->ipif, &pdp->eua);
-
-  for (pdp2 = haship[hash]; pdp2; pdp2 = pdp2->ipnext)
-    pdp_prev = pdp2;
-  if (!pdp_prev)
-    haship[hash] = pdp;
-  else
-    pdp_prev->ipnext = pdp;
-  if (PDP_DEBUG) printf("End pdp_ipset\n");
-  return 0;
-}
 
-int pdp_ipdel(struct pdp_t *pdp) {
-  int hash = pdp_iphash(pdp->ipif, &pdp->eua);
-  struct pdp_t *pdp2;
-  struct pdp_t *pdp_prev = NULL;
-  if (PDP_DEBUG) printf("Begin pdp_ipdel\n");
-  for (pdp2 = haship[hash]; pdp2; pdp2 = pdp2->ipnext) {
-    if (pdp2 == pdp) {
-      if (!pdp_prev)
-	haship[hash] = pdp2->ipnext;
-      else
-	pdp_prev->ipnext = pdp2->ipnext;
-      if (PDP_DEBUG) printf("End pdp_ipdel: PDP found\n");
-      return 0;
-    }
-    pdp_prev = pdp2;
-  }
-  if (PDP_DEBUG) printf("End pdp_ipdel: PDP not found\n");
-  return EOF; /# End of linked list and not found #/
-}
-
-int pdp_ipget(struct pdp_t **pdp, void* ipif, struct ul66_t *eua) {
-  int hash = pdp_iphash(ipif, eua);
-  struct pdp_t *pdp2;
-  /#printf("Begin pdp_ipget %d %d %2x%2x%2x%2x\n", (unsigned)ipif, eua->l,
-    eua->v[2],eua->v[3],eua->v[4],eua->v[5]);#/
-  for (pdp2 = haship[hash]; pdp2; pdp2 = pdp2->ipnext) {
-    if ((pdp2->ipif == ipif) && (pdp2->eua.l == eua->l) &&
-	(memcmp(&pdp2->eua.v, &eua->v, eua->l) == 0)) {
-      *pdp = pdp2;
-      /#printf("End pdp_ipget. Found\n");#/
-      return 0;
-    }
-  }
-  if (PDP_DEBUG) printf("End pdp_ipget Notfound %d %d %2x%2x%2x%2x\n",
-	 (unsigned)ipif, eua->l, eua->v[2],eua->v[3],eua->v[4],eua->v[5]);
-  return EOF; /# End of linked list and not found #/
-}
-*/
 /* Various conversion functions */
 
 uint64_t pdp_gettid(uint64_t imsi, uint8_t nsapi)
diff --git a/gtp/pdp.h b/gtp/pdp.h
index e48f1a1..a287113 100644
--- a/gtp/pdp.h
+++ b/gtp/pdp.h
@@ -262,13 +262,6 @@ void pdp_set_imsi_nsapi(struct pdp_t *pdp, uint64_t teid);
 
 unsigned int pdp_count_secondary(struct pdp_t *pdp);
 
-/*
-int pdp_iphash(void* ipif, struct ul66_t *eua);
-int pdp_ipset(struct pdp_t *pdp, void* ipif, struct ul66_t *eua);
-int pdp_ipdel(struct pdp_t *pdp);
-int pdp_ipget(struct pdp_t **pdp, void* ipif, struct ul66_t *eua);
-*/
-
 uint64_t pdp_gettid(uint64_t imsi, uint8_t nsapi);
 
 #endif /* !_PDP_H */
-- 
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