From 1f9c3bcb462f84b97b75f264553180523eaf6419 Mon Sep 17 00:00:00 2001
From: Andreas Hansson <andreas.hansson@arm.com>
Date: Mon, 10 Sep 2012 11:57:39 -0400
Subject: Inet: Remove the SackRange and its use

This patch aims to simplify the use of the Range class before
introducing a more elaborate AddrRegion to replace the AddrRange. The
SackRange is the only use of the range class besides address ranges,
and the removal of this use makes for an easier modification of the
range class.

The functionlity that is removed with this patch is not used anywhere
throughout the code base.
---
 src/base/inet.cc | 23 -----------------------
 src/base/inet.hh |  3 ---
 2 files changed, 26 deletions(-)

diff --git a/src/base/inet.cc b/src/base/inet.cc
index 7d7eb3f5a..d8d156478 100644
--- a/src/base/inet.cc
+++ b/src/base/inet.cc
@@ -254,29 +254,6 @@ TcpHdr::options(vector<const TcpOpt *> &vec) const
     return true;
 }
 
-bool
-TcpOpt::sack(vector<SackRange> &vec) const
-{
-    vec.clear();
-
-    const uint8_t *data = bytes() + sizeof(struct tcp_hdr);
-    int all = len() - offsetof(tcp_opt, opt_data.sack);
-    while (all > 0) {
-        const uint16_t *sack = (const uint16_t *)data;
-        int len = sizeof(uint16_t) * 2;
-        if (all < len) {
-            vec.clear();
-            return false;
-        }
-
-        vec.push_back(RangeIn(ntohs(sack[0]), ntohs(sack[1])));
-        all -= len;
-        data += len;
-    }
-
-    return false;
-}
-
 int 
 hsplit(const EthPacketPtr &ptr)
 {
diff --git a/src/base/inet.hh b/src/base/inet.hh
index a957b8a71..4b7335591 100644
--- a/src/base/inet.hh
+++ b/src/base/inet.hh
@@ -380,8 +380,6 @@ class TcpPtr
 
 uint16_t cksum(const TcpPtr &ptr);
 
-typedef Range<uint16_t> SackRange;
-
 struct TcpOpt : public tcp_opt
 {
     uint8_t type() const { return opt_type; }
@@ -393,7 +391,6 @@ struct TcpOpt : public tcp_opt
 
     uint16_t mss() const { return ntohs(opt_data.mss); }
     uint8_t wscale() const { return opt_data.wscale; }
-    bool sack(std::vector<SackRange> &vec) const;
     uint32_t echo() const { return ntohl(opt_data.echo); }
     uint32_t tsval() const { return ntohl(opt_data.timestamp[0]); }
     uint32_t tsecr() const { return ntohl(opt_data.timestamp[1]); }
-- 
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