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-rw-r--r--src/base/inet.hh80
-rw-r--r--src/dev/ns_gige.cc33
2 files changed, 59 insertions, 54 deletions
diff --git a/src/base/inet.hh b/src/base/inet.hh
index 1bf7c585f..e88c0f75f 100644
--- a/src/base/inet.hh
+++ b/src/base/inet.hh
@@ -179,32 +179,31 @@ class IpPtr
friend class UdpPtr;
EthPacketPtr p;
- const IpHdr *h() const
- { return (const IpHdr *)(p->data + sizeof(eth_hdr)); }
- IpHdr *h() { return (IpHdr *)(p->data + sizeof(eth_hdr)); }
-
void set(const EthPacketPtr &ptr)
{
- EthHdr *eth = (EthHdr *)ptr->data;
- if (eth->type() == ETH_TYPE_IP)
- p = ptr;
- else
- p = 0;
+ p = 0;
+
+ if (ptr) {
+ EthHdr *eth = (EthHdr *)ptr->data;
+ if (eth->type() == ETH_TYPE_IP)
+ p = ptr;
+ }
}
public:
- IpPtr() {}
- IpPtr(const EthPacketPtr &ptr) { set(ptr); }
- IpPtr(const EthPtr &ptr) { set(ptr.p); }
+ IpPtr() : p(0) {}
+ IpPtr(const EthPacketPtr &ptr) : p(0) { set(ptr); }
+ IpPtr(const EthPtr &ptr) : p(0) { set(ptr.p); }
IpPtr(const IpPtr &ptr) : p(ptr.p) { }
- IpHdr *operator->() { return h(); }
- IpHdr &operator*() { return *h(); }
- operator IpHdr *() { return h(); }
+ IpHdr *get() { return (IpHdr *)(p->data + sizeof(eth_hdr)); }
+ IpHdr *operator->() { return get(); }
+ IpHdr &operator*() { return *get(); }
- const IpHdr *operator->() const { return h(); }
- const IpHdr &operator*() const { return *h(); }
- operator const IpHdr *() const { return h(); }
+ const IpHdr *get() const
+ { return (const IpHdr *)(p->data + sizeof(eth_hdr)); }
+ const IpHdr *operator->() const { return get(); }
+ const IpHdr &operator*() const { return *get(); }
const IpPtr &operator=(const EthPacketPtr &ptr) { set(ptr); return *this; }
const IpPtr &operator=(const EthPtr &ptr) { set(ptr.p); return *this; }
@@ -214,7 +213,6 @@ class IpPtr
EthPacketPtr packet() { return p; }
bool operator!() const { return !p; }
operator bool() const { return p; }
- operator bool() { return p; }
};
uint16_t cksum(const IpPtr &ptr);
@@ -278,30 +276,27 @@ class TcpPtr
EthPacketPtr p;
int off;
- const TcpHdr *h() const { return (const TcpHdr *)(p->data + off); }
- TcpHdr *h() { return (TcpHdr *)(p->data + off); }
-
void set(const EthPacketPtr &ptr, int offset) { p = ptr; off = offset; }
void set(const IpPtr &ptr)
{
- if (ptr->proto() == IP_PROTO_TCP)
+ if (ptr && ptr->proto() == IP_PROTO_TCP)
set(ptr.p, sizeof(eth_hdr) + ptr->hlen());
else
set(0, 0);
}
public:
- TcpPtr() {}
- TcpPtr(const IpPtr &ptr) { set(ptr); }
+ TcpPtr() : p(0), off(0) {}
+ TcpPtr(const IpPtr &ptr) : p(0), off(0) { set(ptr); }
TcpPtr(const TcpPtr &ptr) : p(ptr.p), off(ptr.off) {}
- TcpHdr *operator->() { return h(); }
- TcpHdr &operator*() { return *h(); }
- operator TcpHdr *() { return h(); }
+ TcpHdr *get() { return (TcpHdr *)(p->data + off); }
+ TcpHdr *operator->() { return get(); }
+ TcpHdr &operator*() { return *get(); }
- const TcpHdr *operator->() const { return h(); }
- const TcpHdr &operator*() const { return *h(); }
- operator const TcpHdr *() const { return h(); }
+ const TcpHdr *get() const { return (const TcpHdr *)(p->data + off); }
+ const TcpHdr *operator->() const { return get(); }
+ const TcpHdr &operator*() const { return *get(); }
const TcpPtr &operator=(const IpPtr &i) { set(i); return *this; }
const TcpPtr &operator=(const TcpPtr &t) { set(t.p, t.off); return *this; }
@@ -310,7 +305,6 @@ class TcpPtr
EthPacketPtr packet() { return p; }
bool operator!() const { return !p; }
operator bool() const { return p; }
- operator bool() { return p; }
};
uint16_t cksum(const TcpPtr &ptr);
@@ -368,30 +362,27 @@ class UdpPtr
EthPacketPtr p;
int off;
- const UdpHdr *h() const { return (const UdpHdr *)(p->data + off); }
- UdpHdr *h() { return (UdpHdr *)(p->data + off); }
-
void set(const EthPacketPtr &ptr, int offset) { p = ptr; off = offset; }
void set(const IpPtr &ptr)
{
- if (ptr->proto() == IP_PROTO_UDP)
+ if (ptr && ptr->proto() == IP_PROTO_UDP)
set(ptr.p, sizeof(eth_hdr) + ptr->hlen());
else
set(0, 0);
}
public:
- UdpPtr() {}
- UdpPtr(const IpPtr &ptr) { set(ptr); }
+ UdpPtr() : p(0), off(0) {}
+ UdpPtr(const IpPtr &ptr) : p(0), off(0) { set(ptr); }
UdpPtr(const UdpPtr &ptr) : p(ptr.p), off(ptr.off) {}
- UdpHdr *operator->() { return h(); }
- UdpHdr &operator*() { return *h(); }
- operator UdpHdr *() { return h(); }
+ UdpHdr *get() { return (UdpHdr *)(p->data + off); }
+ UdpHdr *operator->() { return get(); }
+ UdpHdr &operator*() { return *get(); }
- const UdpHdr *operator->() const { return h(); }
- const UdpHdr &operator*() const { return *h(); }
- operator const UdpHdr *() const { return h(); }
+ const UdpHdr *get() const { return (const UdpHdr *)(p->data + off); }
+ const UdpHdr *operator->() const { return get(); }
+ const UdpHdr &operator*() const { return *get(); }
const UdpPtr &operator=(const IpPtr &i) { set(i); return *this; }
const UdpPtr &operator=(const UdpPtr &t) { set(t.p, t.off); return *this; }
@@ -400,7 +391,6 @@ class UdpPtr
EthPacketPtr packet() { return p; }
bool operator!() const { return !p; }
operator bool() const { return p; }
- operator bool() { return p; }
};
uint16_t cksum(const UdpPtr &ptr);
diff --git a/src/dev/ns_gige.cc b/src/dev/ns_gige.cc
index bd48bdca5..5767d8c79 100644
--- a/src/dev/ns_gige.cc
+++ b/src/dev/ns_gige.cc
@@ -2036,19 +2036,34 @@ NSGigE::txKick()
IpPtr ip(txPacket);
if (extsts & EXTSTS_UDPPKT) {
UdpPtr udp(ip);
- udp->sum(0);
- udp->sum(cksum(udp));
- txUdpChecksums++;
+ if (udp) {
+ udp->sum(0);
+ udp->sum(cksum(udp));
+ txUdpChecksums++;
+ } else {
+ debug_break();
+ warn_once("UDPPKT set, but not UDP!\n");
+ }
} else if (extsts & EXTSTS_TCPPKT) {
TcpPtr tcp(ip);
- tcp->sum(0);
- tcp->sum(cksum(tcp));
- txTcpChecksums++;
+ if (tcp) {
+ tcp->sum(0);
+ tcp->sum(cksum(tcp));
+ txTcpChecksums++;
+ } else {
+ debug_break();
+ warn_once("TCPPKT set, but not UDP!\n");
+ }
}
if (extsts & EXTSTS_IPPKT) {
- ip->sum(0);
- ip->sum(cksum(ip));
- txIpChecksums++;
+ if (ip) {
+ ip->sum(0);
+ ip->sum(cksum(ip));
+ txIpChecksums++;
+ } else {
+ debug_break();
+ warn_once("IPPKT set, but not UDP!\n");
+ }
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 18:14:34 +0000