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提交 0d62c4cf 编写于 作者: J Jan Kiszka 提交者： Anthony Liguori
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slirp: Drop dead code 

After all its years inside the qemu tree, there is no point in keeping
the dead code paths of slirp. This patch is a first round of removing
usually commented out code parts. More cleanups need to follow (and
maybe finally a proper reindention).
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
上级 6dbe553f
隐藏空白更改
内联 并排
Showing with 22 addition and 1650 deletion
slirp/debug.c
浏览文件 @ 0d62c4cf
......@@ -9,127 +9,9 @@
#include <slirp.h>
FILE *dfd = NULL;
#ifdef DEBUG
int dostats = 1;
#else
int dostats = 0;
#endif
int slirp_debug = 0;
/* Carry over one item from main.c so that the tty's restored.
* Only done when the tty being used is /dev/tty --RedWolf */
#ifndef CONFIG_QEMU
extern struct termios slirp_tty_settings;
extern int slirp_tty_restore;
void
debug_init(file, dbg)
char *file;
int dbg;
{
/* Close the old debugging file */
if (dfd)
fclose(dfd);
dfd = fopen(file,"w");
if (dfd != NULL) {
#if 0
fprintf(dfd,"Slirp %s - Debugging Started.\n", SLIRP_VERSION);
#endif
fprintf(dfd,"Debugging Started level %i.\r\n",dbg);
fflush(dfd);
slirp_debug = dbg;
} else {
lprint("Error: Debugging file \"%s\" could not be opened: %s\r\n",
file, strerror(errno));
}
}
/*
* Dump a packet in the same format as tcpdump -x
*/
#ifdef DEBUG
void
dump_packet(dat, n)
void *dat;
int n;
{
u_char *pptr = (u_char *)dat;
int j,k;
n /= 16;
n++;
DEBUG_MISC((dfd, "PACKET DUMPED: \n"));
for(j = 0; j < n; j++) {
for(k = 0; k < 6; k++)
DEBUG_MISC((dfd, "%02x ", *pptr++));
DEBUG_MISC((dfd, "\n"));
fflush(dfd);
}
}
#endif
#endif
#ifdef LOG_ENABLED
#if 0
/*
* Statistic routines
*
* These will print statistics to the screen, the debug file (dfd), or
* a buffer, depending on "type", so that the stats can be sent over
* the link as well.
*/
static void
ttystats(ttyp)
struct ttys *ttyp;
{
struct slirp_ifstats *is = &ttyp->ifstats;
char buff[512];
lprint(" \r\n");
if (IF_COMP & IF_COMPRESS)
strcpy(buff, "on");
else if (IF_COMP & IF_NOCOMPRESS)
strcpy(buff, "off");
else
strcpy(buff, "off (for now)");
lprint("Unit %d:\r\n", ttyp->unit);
lprint(" using %s encapsulation (VJ compression is %s)\r\n", (
#ifdef USE_PPP
ttyp->proto==PROTO_PPP?"PPP":
#endif
"SLIP"), buff);
lprint(" %d baudrate\r\n", ttyp->baud);
lprint(" interface is %s\r\n", ttyp->up?"up":"down");
lprint(" using fd %d, guardian pid is %d\r\n", ttyp->fd, ttyp->pid);
#ifndef FULL_BOLT
lprint(" towrite is %d bytes\r\n", ttyp->towrite);
#endif
if (ttyp->zeros)
lprint(" %d zeros have been typed\r\n", ttyp->zeros);
else if (ttyp->ones)
lprint(" %d ones have been typed\r\n", ttyp->ones);
lprint("Interface stats:\r\n");
lprint(" %6d output packets sent (%d bytes)\r\n", is->out_pkts, is->out_bytes);
lprint(" %6d output packets dropped (%d bytes)\r\n", is->out_errpkts, is->out_errbytes);
lprint(" %6d input packets received (%d bytes)\r\n", is->in_pkts, is->in_bytes);
lprint(" %6d input packets dropped (%d bytes)\r\n", is->in_errpkts, is->in_errbytes);
lprint(" %6d bad input packets\r\n", is->in_mbad);
}
static void
allttystats(void)
{
struct ttys *ttyp;
for (ttyp = ttys; ttyp; ttyp = ttyp->next)
ttystats(ttyp);
}
#endif
static void
ipstats(void)
{
......@@ -154,25 +36,6 @@ ipstats(void)
lprint(" %6d total packets delivered\r\n", ipstat.ips_delivered);
}
#ifndef CONFIG_QEMU
static void
vjstats(void)
{
lprint(" \r\n");
lprint("VJ compression stats:\r\n");
lprint(" %6d outbound packets (%d compressed)\r\n",
comp_s.sls_packets, comp_s.sls_compressed);
lprint(" %6d searches for connection stats (%d misses)\r\n",
comp_s.sls_searches, comp_s.sls_misses);
lprint(" %6d inbound uncompressed packets\r\n", comp_s.sls_uncompressedin);
lprint(" %6d inbound compressed packets\r\n", comp_s.sls_compressedin);
lprint(" %6d inbound unknown type packets\r\n", comp_s.sls_errorin);
lprint(" %6d inbound packets tossed due to error\r\n", comp_s.sls_tossed);
}
#endif
static void
tcpstats(void)
{
......@@ -234,11 +97,6 @@ tcpstats(void)
lprint(" %6d correct ACK header predictions\r\n", tcpstat.tcps_predack);
lprint(" %6d correct data packet header predictions\n", tcpstat.tcps_preddat);
lprint(" %6d TCP cache misses\r\n", tcpstat.tcps_socachemiss);
/* lprint(" Packets received too short: %d\r\n", tcpstat.tcps_rcvshort); */
/* lprint(" Segments dropped due to PAWS: %d\r\n", tcpstat.tcps_pawsdrop); */
}
static void
......@@ -293,49 +151,6 @@ mbufstats(void)
}
#endif
#ifndef CONFIG_QEMU
void
slirp_exit(exit_status)
int exit_status;
{
struct ttys *ttyp;
DEBUG_CALL("slirp_exit");
DEBUG_ARG("exit_status = %d", exit_status);
if (dostats) {
lprint_print = (int (*) _P((void *, const char *, va_list)))vfprintf;
if (!dfd)
debug_init("slirp_stats", 0xf);
lprint_arg = (char **)&dfd;
ipstats();
tcpstats();
udpstats();
icmpstats();
mbufstats();
sockstats();
allttystats();
vjstats();
}
for (ttyp = ttys; ttyp; ttyp = ttyp->next)
tty_detached(ttyp, 1);
if (slirp_forked) {
/* Menendez time */
if (kill(getppid(), SIGQUIT) < 0)
lprint("Couldn't kill parent process %ld!\n",
(long) getppid());
}
/* Restore the terminal if we gotta */
if(slirp_tty_restore)
tcsetattr(0,TCSANOW, &slirp_tty_settings); /* NOW DAMMIT! */
exit(exit_status);
}
#endif
void
slirp_stats(void)
{
......
slirp/debug.h
浏览文件 @ 0d62c4cf
......@@ -9,8 +9,6 @@
#define PRN_SPRINTF 2
extern FILE *dfd;
extern FILE *lfd;
extern int dostats;
extern int slirp_debug;
#define DBG_CALL 0x1
......
slirp/if.c
浏览文件 @ 0d62c4cf
......@@ -36,89 +36,9 @@ if_init(void)
{
if_fastq.ifq_next = if_fastq.ifq_prev = &if_fastq;
if_batchq.ifq_next = if_batchq.ifq_prev = &if_batchq;
// sl_compress_init(&comp_s);
next_m = &if_batchq;
}
#if 0
/*
* This shouldn't be needed since the modem is blocking and
* we don't expect any signals, but what the hell..
*/
inline int
writen(fd, bptr, n)
int fd;
char *bptr;
int n;
{
int ret;
int total;
/* This should succeed most of the time */
ret = send(fd, bptr, n,0);
if (ret == n || ret <= 0)
return ret;
/* Didn't write everything, go into the loop */
total = ret;
while (n > total) {
ret = send(fd, bptr+total, n-total,0);
if (ret <= 0)
return ret;
total += ret;
}
return total;
}
/*
* if_input - read() the tty, do "top level" processing (ie: check for any escapes),
* and pass onto (*ttyp->if_input)
*
* XXXXX Any zeros arriving by themselves are NOT placed into the arriving packet.
*/
#define INBUFF_SIZE 2048 /* XXX */
void
if_input(ttyp)
struct ttys *ttyp;
{
u_char if_inbuff[INBUFF_SIZE];
int if_n;
DEBUG_CALL("if_input");
DEBUG_ARG("ttyp = %lx", (long)ttyp);
if_n = recv(ttyp->fd, (char *)if_inbuff, INBUFF_SIZE,0);
DEBUG_MISC((dfd, " read %d bytes\n", if_n));
if (if_n <= 0) {
if (if_n == 0 || (errno != EINTR && errno != EAGAIN)) {
if (ttyp->up)
link_up--;
tty_detached(ttyp, 0);
}
return;
}
if (if_n == 1) {
if (*if_inbuff == '0') {
ttyp->ones = 0;
if (++ttyp->zeros >= 5)
slirp_exit(0);
return;
}
if (*if_inbuff == '1') {
ttyp->zeros = 0;
if (++ttyp->ones >= 5)
tty_detached(ttyp, 0);
return;
}
}
ttyp->ones = ttyp->zeros = 0;
(*ttyp->if_input)(ttyp, if_inbuff, if_n);
}
#endif
/*
* if_output: Queue packet into an output queue.
* There are 2 output queue's, if_fastq and if_batchq.
......
slirp/if.h
浏览文件 @ 0d62c4cf
......@@ -17,20 +17,8 @@
#define IF_MRU 1500
#define IF_COMP IF_AUTOCOMP /* Flags for compression */
#if 0
/*
* Set if_maxlinkhdr to 48 because it's 40 bytes for TCP/IP,
* and 8 bytes for PPP, but need to have it on an 8byte boundary
*/
#ifdef USE_PPP
#define IF_MAXLINKHDR 48
#else
#define IF_MAXLINKHDR 40
#endif
#else
/* 2 for alignment, 14 for ethernet, 40 for TCP/IP */
/* 2 for alignment, 14 for ethernet, 40 for TCP/IP */
#define IF_MAXLINKHDR (2 + 14 + 40)
#endif
extern int if_queued; /* Number of packets queued so far */
......
slirp/ip_icmp.c
浏览文件 @ 0d62c4cf
......@@ -73,7 +73,6 @@ icmp_input(struct mbuf *m, int hlen)
register struct icmp *icp;
register struct ip *ip=mtod(m, struct ip *);
int icmplen=ip->ip_len;
/* int code; */
DEBUG_CALL("icmp_input");
DEBUG_ARG("m = %lx", (long )m);
......@@ -102,9 +101,6 @@ icmp_input(struct mbuf *m, int hlen)
m->m_len += hlen;
m->m_data -= hlen;
/* icmpstat.icps_inhist[icp->icmp_type]++; */
/* code = icp->icmp_code; */
DEBUG_ARG("icmp_type = %d", icp->icmp_type);
switch (icp->icmp_type) {
case ICMP_ECHO:
......
slirp/ip_input.c
浏览文件 @ 0d62c4cf
......@@ -164,16 +164,6 @@ ip_input(struct mbuf *m)
goto bad;
}
/*
* Process options and, if not destined for us,
* ship it on. ip_dooptions returns 1 when an
* error was detected (causing an icmp message
* to be sent and the original packet to be freed).
*/
/* We do no IP options */
/* if (hlen > sizeof (struct ip) && ip_dooptions(m))
* goto next;
*/
/*
* If offset or IP_MF are set, must reassemble.
* Otherwise, nothing need be done.
......@@ -396,9 +386,6 @@ insert:
q = (struct ipasfrag *)(m->m_ext + delta);
}
/* DEBUG_ARG("ip = %lx", (long)ip);
* ip=(struct ipasfrag *)m->m_data; */
ip = fragtoip(q);
ip->ip_len = next;
ip->ip_tos &= ~1;
......@@ -505,7 +492,6 @@ ip_dooptions(m)
register u_char *cp;
register struct ip_timestamp *ipt;
register struct in_ifaddr *ia;
/* int opt, optlen, cnt, off, code, type = ICMP_PARAMPROB, forward = 0; */
int opt, optlen, cnt, off, code, type, forward = 0;
struct in_addr *sin, dst;
typedef u_int32_t n_time;
......@@ -683,9 +669,6 @@ typedef u_int32_t n_time;
}
return (0);
bad:
/* ip->ip_len -= ip->ip_hl << 2; XXX icmp_error adds in hdr length */
/* Not yet */
icmp_error(m, type, code, 0, 0);
STAT(ipstat.ips_badoptions++);
......
slirp/ip_output.c
浏览文件 @ 0d62c4cf
......@@ -64,12 +64,6 @@ ip_output(struct socket *so, struct mbuf *m0)
DEBUG_ARG("so = %lx", (long)so);
DEBUG_ARG("m0 = %lx", (long)m0);
/* We do no options */
/* if (opt) {
* m = ip_insertoptions(m, opt, &len);
* hlen = len;
* }
*/
ip = mtod(m, struct ip *);
/*
* Fill in IP header.
......@@ -80,17 +74,6 @@ ip_output(struct socket *so, struct mbuf *m0)
ip->ip_hl = hlen >> 2;
STAT(ipstat.ips_localout++);
/*
* Verify that we have any chance at all of being able to queue
* the packet or packet fragments
*/
/* XXX Hmmm... */
/* if (if_queued > IF_THRESH && towrite <= 0) {
* error = ENOBUFS;
* goto bad;
* }
*/
/*
* If small enough for interface, can just send directly.
*/
......@@ -142,12 +125,6 @@ ip_output(struct socket *so, struct mbuf *m0)
mhip = mtod(m, struct ip *);
*mhip = *ip;
/* No options */
/* if (hlen > sizeof (struct ip)) {
* mhlen = ip_optcopy(ip, mhip) + sizeof (struct ip);
* mhip->ip_hl = mhlen >> 2;
* }
*/
m->m_len = mhlen;
mhip->ip_off = ((off - hlen) >> 3) + (ip->ip_off & ~IP_MF);
if (ip->ip_off & IP_MF)
......
slirp/libslirp.h
浏览文件 @ 0d62c4cf
#ifndef _LIBSLIRP_H
#define _LIBSLIRP_H
#ifdef __cplusplus
extern "C" {
#endif
#include <qemu-common.h>
void slirp_init(int restricted, struct in_addr vnetwork,
......@@ -37,8 +33,4 @@ void slirp_socket_recv(struct in_addr guest_addr, int guest_port,
const uint8_t *buf, int size);
size_t slirp_socket_can_recv(struct in_addr guest_addr, int guest_port);
#ifdef __cplusplus
}
#endif
#endif
slirp/mbuf.c
浏览文件 @ 0d62c4cf
......@@ -141,17 +141,11 @@ m_inc(struct mbuf *m, int size)
if (m->m_flags & M_EXT) {
datasize = m->m_data - m->m_ext;
m->m_ext = (char *)realloc(m->m_ext,size);
/* if (m->m_ext == NULL)
* return (struct mbuf *)NULL;
*/
m->m_data = m->m_ext + datasize;
} else {
char *dat;
datasize = m->m_data - m->m_dat;
dat = (char *)malloc(size);
/* if (dat == NULL)
* return (struct mbuf *)NULL;
*/
memcpy(dat, m->m_dat, m->m_size);
m->m_ext = dat;
......
slirp/mbuf.h
浏览文件 @ 0d62c4cf
......@@ -41,10 +41,8 @@
/*
* Macros for type conversion
* mtod(m,t) - convert mbuf pointer to data pointer of correct type
* dtom(x) - convert data pointer within mbuf to mbuf pointer (XXX)
*/
#define mtod(m,t) ((t)(m)->m_data)
/* #define dtom(x) ((struct mbuf *)((int)(x) & ~(M_SIZE-1))) */
/* XXX About mbufs for slirp:
* Only one mbuf is ever used in a chain, for each "cell" of data.
......
slirp/misc.c
浏览文件 @ 0d62c4cf
......@@ -12,62 +12,6 @@
u_int curtime, time_fasttimo, last_slowtimo;
#if 0
int x_port = -1;
int x_display = 0;
int x_screen = 0;
int
show_x(buff, inso)
char *buff;
struct socket *inso;
{
if (x_port < 0) {
lprint("X Redir: X not being redirected.\r\n");
} else {
lprint("X Redir: In sh/bash/zsh/etc. type: DISPLAY=%s:%d.%d; export DISPLAY\r\n",
inet_ntoa(our_addr), x_port, x_screen);
lprint("X Redir: In csh/tcsh/etc. type: setenv DISPLAY %s:%d.%d\r\n",
inet_ntoa(our_addr), x_port, x_screen);
if (x_display)
lprint("X Redir: Redirecting to display %d\r\n", x_display);
}
return CFG_OK;
}
/*
* XXX Allow more than one X redirection?
*/
void
redir_x(inaddr, start_port, display, screen)
u_int32_t inaddr;
int start_port;
int display;
int screen;
{
int i;
if (x_port >= 0) {
lprint("X Redir: X already being redirected.\r\n");
show_x(0, 0);
} else {
for (i = 6001 + (start_port-1); i <= 6100; i++) {
if (solisten(htons(i), inaddr, htons(6000 + display), 0)) {
/* Success */
x_port = i - 6000;
x_display = display;
x_screen = screen;
show_x(0, 0);
return;
}
}
lprint("X Redir: Error: Couldn't redirect a port for X. Weird.\r\n");
}
}
#endif
/*
* Get our IP address and put it in our_addr
*/
......@@ -109,12 +53,8 @@ remque(void *a)
((struct quehead *)(element->qh_link))->qh_rlink = element->qh_rlink;
((struct quehead *)(element->qh_rlink))->qh_link = element->qh_link;
element->qh_rlink = NULL;
/* element->qh_link = NULL; TCP FIN1 crashes if you do this. Why ? */
}
/* #endif */
int add_exec(struct ex_list **ex_ptr, int do_pty, char *exec,
struct in_addr addr, int port)
{
......@@ -170,73 +110,6 @@ fork_exec(struct socket *so, const char *ex, int do_pty)
#else
#ifndef CONFIG_QEMU
int
slirp_openpty(amaster, aslave)
int *amaster, *aslave;
{
register int master, slave;
#ifdef HAVE_GRANTPT
char *ptr;
if ((master = open("/dev/ptmx", O_RDWR)) < 0 ||
grantpt(master) < 0 ||
unlockpt(master) < 0 ||
(ptr = ptsname(master)) == NULL) {
close(master);
return -1;
}
if ((slave = open(ptr, O_RDWR)) < 0 ||
ioctl(slave, I_PUSH, "ptem") < 0 ||
ioctl(slave, I_PUSH, "ldterm") < 0 ||
ioctl(slave, I_PUSH, "ttcompat") < 0) {
close(master);
close(slave);
return -1;
}
*amaster = master;
*aslave = slave;
return 0;
#else
static char line[] = "/dev/ptyXX";
register const char *cp1, *cp2;
for (cp1 = "pqrsPQRS"; *cp1; cp1++) {
line[8] = *cp1;
for (cp2 = "0123456789abcdefghijklmnopqrstuv"; *cp2; cp2++) {
line[9] = *cp2;
if ((master = open(line, O_RDWR, 0)) == -1) {
if (errno == ENOENT)
return (-1); /* out of ptys */
} else {
line[5] = 't';
/* These will fail */
(void) chown(line, getuid(), 0);
(void) chmod(line, S_IRUSR|S_IWUSR|S_IWGRP);
#ifdef HAVE_REVOKE
(void) revoke(line);
#endif
if ((slave = open(line, O_RDWR, 0)) != -1) {
*amaster = master;
*aslave = slave;
return 0;
}
(void) close(master);
line[5] = 'p';
}
}
}
errno = ENOENT; /* out of ptys */
return (-1);
#endif
}
#endif
/*
* XXX This is ugly
* We create and bind a socket, then fork off to another
......@@ -257,9 +130,6 @@ fork_exec(struct socket *so, const char *ex, int do_pty)
int opt;
int master = -1;
const char *argv[256];
#if 0
char buff[256];
#endif
/* don't want to clobber the original */
char *bptr;
const char *curarg;
......@@ -271,14 +141,7 @@ fork_exec(struct socket *so, const char *ex, int do_pty)
DEBUG_ARG("do_pty = %lx", (long)do_pty);
if (do_pty == 2) {
#if 0
if (slirp_openpty(&master, &s) == -1) {
lprint("Error: openpty failed: %s\n", strerror(errno));
return 0;
}
#else
return 0;
#endif
} else {
addr.sin_family = AF_INET;
addr.sin_port = 0;
......@@ -324,17 +187,6 @@ fork_exec(struct socket *so, const char *ex, int do_pty)
} while (ret < 0 && errno == EINTR);
}
#if 0
if (x_port >= 0) {
#ifdef HAVE_SETENV
sprintf(buff, "%s:%d.%d", inet_ntoa(our_addr), x_port, x_screen);
setenv("DISPLAY", buff, 1);
#else
sprintf(buff, "DISPLAY=%s:%d.%d", inet_ntoa(our_addr), x_port, x_screen);
putenv(buff);
#endif
}
#endif
dup2(s, 0);
dup2(s, 1);
dup2(s, 2);
......@@ -422,137 +274,6 @@ strdup(str)
}
#endif
#if 0
void
snooze_hup(num)
int num;
{
int s, ret;
#ifndef NO_UNIX_SOCKETS
struct sockaddr_un sock_un;
#endif
struct sockaddr_in sock_in;
char buff[256];
ret = -1;
if (slirp_socket_passwd) {
s = socket(AF_INET, SOCK_STREAM, 0);
if (s < 0)
slirp_exit(1);
sock_in.sin_family = AF_INET;
sock_in.sin_addr.s_addr = slirp_socket_addr;
sock_in.sin_port = htons(slirp_socket_port);
if (connect(s, (struct sockaddr *)&sock_in, sizeof(sock_in)) != 0)
slirp_exit(1); /* just exit...*/
sprintf(buff, "kill %s:%d", slirp_socket_passwd, slirp_socket_unit);
write(s, buff, strlen(buff)+1);
}
#ifndef NO_UNIX_SOCKETS
else {
s = socket(AF_UNIX, SOCK_STREAM, 0);
if (s < 0)
slirp_exit(1);
sock_un.sun_family = AF_UNIX;
strcpy(sock_un.sun_path, socket_path);
if (connect(s, (struct sockaddr *)&sock_un,
sizeof(sock_un.sun_family) + sizeof(sock_un.sun_path)) != 0)
slirp_exit(1);
sprintf(buff, "kill none:%d", slirp_socket_unit);
write(s, buff, strlen(buff)+1);
}
#endif
slirp_exit(0);
}
void
snooze()
{
sigset_t s;
int i;
/* Don't need our data anymore */
/* XXX This makes SunOS barf */
/* brk(0); */
/* Close all fd's */
for (i = 255; i >= 0; i--)
close(i);
signal(SIGQUIT, slirp_exit);
signal(SIGHUP, snooze_hup);
sigemptyset(&s);
/* Wait for any signal */
sigsuspend(&s);
/* Just in case ... */
exit(255);
}
void
relay(s)
int s;
{
char buf[8192];
int n;
fd_set readfds;
struct ttys *ttyp;
/* Don't need our data anymore */
/* XXX This makes SunOS barf */
/* brk(0); */
signal(SIGQUIT, slirp_exit);
signal(SIGHUP, slirp_exit);
signal(SIGINT, slirp_exit);
signal(SIGTERM, slirp_exit);
/* Fudge to get term_raw and term_restore to work */
if (NULL == (ttyp = tty_attach (0, slirp_tty))) {
lprint ("Error: tty_attach failed in misc.c:relay()\r\n");
slirp_exit (1);
}
ttyp->fd = 0;
ttyp->flags |= TTY_CTTY;
term_raw(ttyp);
while (1) {
FD_ZERO(&readfds);
FD_SET(0, &readfds);
FD_SET(s, &readfds);
n = select(s+1, &readfds, (fd_set *)0, (fd_set *)0, (struct timeval *)0);
if (n <= 0)
slirp_exit(0);
if (FD_ISSET(0, &readfds)) {
n = read(0, buf, 8192);
if (n <= 0)
slirp_exit(0);
n = writen(s, buf, n);
if (n <= 0)
slirp_exit(0);
}
if (FD_ISSET(s, &readfds)) {
n = read(s, buf, 8192);
if (n <= 0)
slirp_exit(0);
n = writen(0, buf, n);
if (n <= 0)
slirp_exit(0);
}
}
/* Just in case.... */
exit(1);
}
#endif
#ifdef CONFIG_QEMU
#include "monitor.h"
void lprint(const char *format, ...)
......@@ -563,159 +284,6 @@ void lprint(const char *format, ...)
monitor_vprintf(cur_mon, format, args);
va_end(args);
}
#else
int (*lprint_print) _P((void *, const char *, va_list));
char *lprint_ptr, *lprint_ptr2, **lprint_arg;
void
#ifdef __STDC__
lprint(const char *format, ...)
#else
lprint(va_alist) va_dcl
#endif
{
va_list args;
#ifdef __STDC__
va_start(args, format);
#else
char *format;
va_start(args);
format = va_arg(args, char *);
#endif
#if 0
/* If we're printing to an sbuf, make sure there's enough room */
/* XXX +100? */
if (lprint_sb) {
if ((lprint_ptr - lprint_sb->sb_wptr) >=
(lprint_sb->sb_datalen - (strlen(format) + 100))) {
int deltaw = lprint_sb->sb_wptr - lprint_sb->sb_data;
int deltar = lprint_sb->sb_rptr - lprint_sb->sb_data;
int deltap = lprint_ptr - lprint_sb->sb_data;
lprint_sb->sb_data = (char *)realloc(lprint_sb->sb_data,
lprint_sb->sb_datalen + TCP_SNDSPACE);
/* Adjust all values */
lprint_sb->sb_wptr = lprint_sb->sb_data + deltaw;
lprint_sb->sb_rptr = lprint_sb->sb_data + deltar;
lprint_ptr = lprint_sb->sb_data + deltap;
lprint_sb->sb_datalen += TCP_SNDSPACE;
}
}
#endif
if (lprint_print)
lprint_ptr += (*lprint_print)(*lprint_arg, format, args);
/* Check if they want output to be logged to file as well */
if (lfd) {
/*
* Remove \r's
* otherwise you'll get ^M all over the file
*/
int len = strlen(format);
char *bptr1, *bptr2;
bptr1 = bptr2 = strdup(format);
while (len--) {
if (*bptr1 == '\r')
memcpy(bptr1, bptr1+1, len+1);
else
bptr1++;
}
vfprintf(lfd, bptr2, args);
free(bptr2);
}
va_end(args);
}
void
add_emu(buff)
char *buff;
{
u_int lport, fport;
u_int8_t tos = 0, emu = 0;
char buff1[256], buff2[256], buff4[128];
char *buff3 = buff4;
struct emu_t *emup;
struct socket *so;
if (sscanf(buff, "%256s %256s", buff2, buff1) != 2) {
lprint("Error: Bad arguments\r\n");
return;
}
if (sscanf(buff1, "%d:%d", &lport, &fport) != 2) {
lport = 0;
if (sscanf(buff1, "%d", &fport) != 1) {
lprint("Error: Bad first argument\r\n");
return;
}
}
if (sscanf(buff2, "%128[^:]:%128s", buff1, buff3) != 2) {
buff3 = 0;
if (sscanf(buff2, "%256s", buff1) != 1) {
lprint("Error: Bad second argument\r\n");
return;
}
}
if (buff3) {
if (strcmp(buff3, "lowdelay") == 0)
tos = IPTOS_LOWDELAY;
else if (strcmp(buff3, "throughput") == 0)
tos = IPTOS_THROUGHPUT;
else {
lprint("Error: Expecting \"lowdelay\"/\"throughput\"\r\n");
return;
}
}
if (strcmp(buff1, "ftp") == 0)
emu = EMU_FTP;
else if (strcmp(buff1, "irc") == 0)
emu = EMU_IRC;
else if (strcmp(buff1, "none") == 0)
emu = EMU_NONE; /* ie: no emulation */
else {
lprint("Error: Unknown service\r\n");
return;
}
/* First, check that it isn't already emulated */
for (emup = tcpemu; emup; emup = emup->next) {
if (emup->lport == lport && emup->fport == fport) {
lprint("Error: port already emulated\r\n");
return;
}
}
/* link it */
emup = (struct emu_t *)malloc(sizeof (struct emu_t));
emup->lport = (u_int16_t)lport;
emup->fport = (u_int16_t)fport;
emup->tos = tos;
emup->emu = emu;
emup->next = tcpemu;
tcpemu = emup;
/* And finally, mark all current sessions, if any, as being emulated */
for (so = tcb.so_next; so != &tcb; so = so->so_next) {
if ((lport && lport == ntohs(so->so_lport)) ||
(fport && fport == ntohs(so->so_fport))) {
if (emu)
so->so_emu = emu;
if (tos)
so->so_iptos = tos;
}
}
lprint("Adding emulation for %s to port %d/%d\r\n", buff1, emup->lport, emup->fport);
}
#endif
#ifdef BAD_SPRINTF
......@@ -817,99 +385,6 @@ fd_block(int fd)
#endif
}
#if 0
/*
* invoke RSH
*/
int
rsh_exec(so,ns, user, host, args)
struct socket *so;
struct socket *ns;
char *user;
char *host;
char *args;
{
int fd[2];
int fd0[2];
int s;
char buff[256];
DEBUG_CALL("rsh_exec");
DEBUG_ARG("so = %lx", (long)so);
if (pipe(fd)<0) {
lprint("Error: pipe failed: %s\n", strerror(errno));
return 0;
}
/* #ifdef HAVE_SOCKETPAIR */
#if 1
if (socketpair(PF_UNIX,SOCK_STREAM,0, fd0) == -1) {
close(fd[0]);
close(fd[1]);
lprint("Error: openpty failed: %s\n", strerror(errno));
return 0;
}
#else
if (slirp_openpty(&fd0[0], &fd0[1]) == -1) {
close(fd[0]);
close(fd[1]);
lprint("Error: openpty failed: %s\n", strerror(errno));
return 0;
}
#endif
switch(fork()) {
case -1:
lprint("Error: fork failed: %s\n", strerror(errno));
close(fd[0]);
close(fd[1]);
close(fd0[0]);
close(fd0[1]);
return 0;
case 0:
close(fd[0]);
close(fd0[0]);
/* Set the DISPLAY */
if (x_port >= 0) {
#ifdef HAVE_SETENV
sprintf(buff, "%s:%d.%d", inet_ntoa(our_addr), x_port, x_screen);
setenv("DISPLAY", buff, 1);
#else
sprintf(buff, "DISPLAY=%s:%d.%d", inet_ntoa(our_addr), x_port, x_screen);
putenv(buff);
#endif
}
dup2(fd0[1], 0);
dup2(fd0[1], 1);
dup2(fd[1], 2);
for (s = 3; s <= 255; s++)
close(s);
execlp("rsh","rsh","-l", user, host, args, NULL);
/* Ooops, failed, let's tell the user why */
sprintf(buff, "Error: execlp of %s failed: %s\n",
"rsh", strerror(errno));
write(2, buff, strlen(buff)+1);
close(0); close(1); close(2); /* XXX */
exit(1);
default:
close(fd[1]);
close(fd0[1]);
ns->s=fd[0];
so->s=fd0[0];
return 1;
}
}
#endif
void slirp_connection_info(Monitor *mon)
{
const char * const tcpstates[] = {
......
slirp/misc.h
浏览文件 @ 0d62c4cf
......@@ -19,10 +19,6 @@ struct ex_list {
extern struct ex_list *exec_list;
extern u_int time_fasttimo, last_slowtimo;
extern int (*lprint_print) _P((void *, const char *, va_list));
extern char *lprint_ptr, *lprint_ptr2, **lprint_arg;
extern struct sbuf *lprint_sb;
#ifndef HAVE_STRDUP
char *strdup _P((const char *));
#endif
......@@ -63,10 +59,6 @@ struct emu_t {
struct emu_t *next;
};
#ifndef CONFIG_QEMU
extern struct emu_t *tcpemu;
#endif
extern int x_port, x_server, x_display;
int show_x _P((char *, struct socket *));
......
slirp/sbuf.c
浏览文件 @ 0d62c4cf
......@@ -9,14 +9,6 @@
static void sbappendsb(struct sbuf *sb, struct mbuf *m);
/* Done as a macro in socket.h */
/* int
* sbspace(struct sockbuff *sb)
* {
* return SB_DATALEN - sb->sb_cc;
* }
*/
void
sbfree(struct sbuf *sb)
{
......
slirp/slirp.c
浏览文件 @ 0d62c4cf
......@@ -55,7 +55,6 @@ int slirp_restrict;
static int do_slowtimo;
int link_up;
struct timeval tt;
FILE *lfd;
struct ex_list *exec_list;
/* XXX: suppress those select globals */
......@@ -96,16 +95,6 @@ static int get_dns_addr(struct in_addr *pdns_addr)
pIPAddr = &(FixedInfo->DnsServerList);
inet_aton(pIPAddr->IpAddress.String, &tmp_addr);
*pdns_addr = tmp_addr;
#if 0
printf( "DNS Servers:\n" );
printf( "DNS Addr:%s\n", pIPAddr->IpAddress.String );
pIPAddr = FixedInfo -> DnsServerList.Next;
while ( pIPAddr ) {
printf( "DNS Addr:%s\n", pIPAddr ->IpAddress.String );
pIPAddr = pIPAddr ->Next;
}
#endif
if (FixedInfo) {
GlobalFree(FixedInfo);
FixedInfo = NULL;
......@@ -179,8 +168,6 @@ void slirp_init(int restricted, struct in_addr vnetwork,
const char *bootfile, struct in_addr vdhcp_start,
struct in_addr vnameserver)
{
// debug_init("/tmp/slirp.log", DEBUG_DEFAULT);
#ifdef _WIN32
WSADATA Data;
......
slirp/slirp.h
浏览文件 @ 0d62c4cf
#ifndef __COMMON_H__
#define __COMMON_H__
#define CONFIG_QEMU
//#define DEBUG 1
// Uncomment the following line to enable SLIRP statistics printing in Qemu
......@@ -14,9 +12,6 @@
#define STAT(expr) do { } while(0)
#endif
#ifndef CONFIG_QEMU
#include "version.h"
#endif
#include "config-host.h"
#include "slirp_config.h"
......@@ -223,8 +218,6 @@ int inet_aton _P((const char *cp, struct in_addr *ia));
#include "tftp.h"
#include "libslirp.h"
extern struct ttys *ttys_unit[MAX_INTERFACES];
#ifndef NULL
#define NULL (void *)0
#endif
......
slirp/socket.c
浏览文件 @ 0d62c4cf
......@@ -15,14 +15,6 @@
static void sofcantrcvmore(struct socket *so);
static void sofcantsendmore(struct socket *so);
#if 0
static void
so_init()
{
/* Nothing yet */
}
#endif
struct socket *
solookup(struct socket *head, struct in_addr laddr, u_int lport,
struct in_addr faddr, u_int fport)
......@@ -526,12 +518,6 @@ sorecvfrom(struct socket *so)
so->so_expire = curtime + SO_EXPIRE;
}
/* if (m->m_len == len) {
* m_inc(m, MINCSIZE);
* m->m_len = 0;
* }
*/
/*
* If this packet was destined for CTL_ADDR,
* make it look like that's where it came from, done by udp_output
......@@ -604,7 +590,6 @@ tcp_listen(u_int32_t haddr, u_int hport, u_int32_t laddr, u_int lport, int flags
DEBUG_ARG("flags = %x", flags);
if ((so = socreate()) == NULL) {
/* free(so); Not sofree() ??? free(NULL) == NOP */
return NULL;
}
......@@ -659,33 +644,6 @@ tcp_listen(u_int32_t haddr, u_int hport, u_int32_t laddr, u_int lport, int flags
return so;
}
#if 0
/*
* Data is available in so_rcv
* Just write() the data to the socket
* XXX not yet...
*/
static void
sorwakeup(so)
struct socket *so;
{
/* sowrite(so); */
/* FD_CLR(so->s,&writefds); */
}
/*
* Data has been freed in so_snd
* We have room for a read() if we want to
* For now, don't read, it'll be done in the main loop
*/
static void
sowwakeup(so)
struct socket *so;
{
/* Nothing, yet */
}
#endif
/*
* Various session state calls
* XXX Should be #define's
......@@ -746,17 +704,6 @@ sofcantsendmore(struct socket *so)
}
}
void
soisfdisconnected(struct socket *so)
{
/* so->so_state &= ~(SS_ISFCONNECTING|SS_ISFCONNECTED); */
/* close(so->s); */
/* so->so_state = SS_ISFDISCONNECTED; */
/*
* XXX Do nothing ... ?
*/
}
/*
* Set write drain mode
* Set CANTSENDMORE once all data has been write()n
......
slirp/socket.h
浏览文件 @ 0d62c4cf
......@@ -5,8 +5,6 @@
* terms and conditions of the copyright.
*/
/* MINE */
#ifndef _SLIRP_SOCKET_H_
#define _SLIRP_SOCKET_H_
......@@ -64,7 +62,6 @@ struct socket {
#define SS_ISFCONNECTED 0x004 /* Socket is connected to peer */
#define SS_FCANTRCVMORE 0x008 /* Socket can't receive more from peer (for half-closes) */
#define SS_FCANTSENDMORE 0x010 /* Socket can't send more to peer (for half-closes) */
/* #define SS_ISFDISCONNECTED 0x020*/ /* Socket has disconnected from peer, in 2MSL state */
#define SS_FWDRAIN 0x040 /* We received a FIN, drain data and set SS_FCANTSENDMORE */
#define SS_CTL 0x080
......@@ -89,7 +86,6 @@ int sosendto _P((struct socket *, struct mbuf *));
struct socket * tcp_listen _P((u_int32_t, u_int, u_int32_t, u_int, int));
void soisfconnecting _P((register struct socket *));
void soisfconnected _P((register struct socket *));
void soisfdisconnected _P((struct socket *));
void sofwdrain _P((struct socket *));
struct iovec; /* For win32 */
size_t sopreprbuf(struct socket *so, struct iovec *iov, int *np);
......
slirp/tcp.h
浏览文件 @ 0d62c4cf
......@@ -113,7 +113,6 @@ struct tcphdr {
#undef TCP_NODELAY
#define TCP_NODELAY 0x01 /* don't delay send to coalesce packets */
#undef TCP_MAXSEG
/* #define TCP_MAXSEG 0x02 */ /* set maximum segment size */
/*
* TCP FSM state definitions.
......
slirp/tcp_input.c
浏览文件 @ 0d62c4cf
......@@ -81,7 +81,6 @@ tcp_seq tcp_iss; /* tcp initial send seq # */
if (tcp_emu((so),(m))) sbappend((so), (m)); \
} else \
sbappend((so), (m)); \
/* sorwakeup(so); */ \
} else {\
(flags) = tcp_reass((tp), (ti), (m)); \
tp->t_flags |= TF_ACKNOW; \
......@@ -101,7 +100,6 @@ tcp_seq tcp_iss; /* tcp initial send seq # */
if (tcp_emu((so),(m))) sbappend(so, (m)); \
} else \
sbappend((so), (m)); \
/* sorwakeup(so); */ \
} else { \
(flags) = tcp_reass((tp), (ti), (m)); \
tp->t_flags |= TF_ACKNOW; \
......@@ -211,7 +209,6 @@ present:
remque(tcpiphdr2qlink(ti));
m = ti->ti_mbuf;
ti = tcpiphdr_next(ti);
/* if (so->so_state & SS_FCANTRCVMORE) */
if (so->so_state & SS_FCANTSENDMORE)
m_freem(m);
else {
......@@ -221,7 +218,6 @@ present:
sbappend(so, m);
}
} while (ti != (struct tcpiphdr *)tp && ti->ti_seq == tp->rcv_nxt);
/* sorwakeup(so); */
return (flags);
}
......@@ -241,11 +237,9 @@ tcp_input(struct mbuf *m, int iphlen, struct socket *inso)
register int tiflags;
struct socket *so = NULL;
int todrop, acked, ourfinisacked, needoutput = 0;
/* int dropsocket = 0; */
int iss = 0;
u_long tiwin;
int ret;
/* int ts_present = 0; */
struct ex_list *ex_ptr;
DEBUG_CALL("tcp_input");
......@@ -300,9 +294,6 @@ tcp_input(struct mbuf *m, int iphlen, struct socket *inso)
ti->ti_x1 = 0;
ti->ti_len = htons((u_int16_t)tlen);
len = sizeof(struct ip ) + tlen;
/* keep checksum for ICMP reply
* ti->ti_sum = cksum(m, len);
* if (ti->ti_sum) { */
if(cksum(m, len)) {
STAT(tcpstat.tcps_rcvbadsum++);
goto drop;
......@@ -322,25 +313,6 @@ tcp_input(struct mbuf *m, int iphlen, struct socket *inso)
if (off > sizeof (struct tcphdr)) {
optlen = off - sizeof (struct tcphdr);
optp = mtod(m, caddr_t) + sizeof (struct tcpiphdr);
/*
* Do quick retrieval of timestamp options ("options
* prediction?"). If timestamp is the only option and it's
* formatted as recommended in RFC 1323 appendix A, we
* quickly get the values now and not bother calling
* tcp_dooptions(), etc.
*/
/* if ((optlen == TCPOLEN_TSTAMP_APPA ||
* (optlen > TCPOLEN_TSTAMP_APPA &&
* optp[TCPOLEN_TSTAMP_APPA] == TCPOPT_EOL)) &&
* *(u_int32_t *)optp == htonl(TCPOPT_TSTAMP_HDR) &&
* (ti->ti_flags & TH_SYN) == 0) {
* ts_present = 1;
* ts_val = ntohl(*(u_int32_t *)(optp + 4));
* ts_ecr = ntohl(*(u_int32_t *)(optp + 8));
* optp = NULL; / * we've parsed the options * /
* }
*/
}
tiflags = ti->ti_flags;
......@@ -411,9 +383,6 @@ findso:
sbreserve(&so->so_snd, TCP_SNDSPACE);
sbreserve(&so->so_rcv, TCP_RCVSPACE);
/* tcp_last_so = so; */ /* XXX ? */
/* tp = sototcpcb(so); */
so->so_laddr = ti->ti_src;
so->so_lport = ti->ti_sport;
so->so_faddr = ti->ti_dst;
......@@ -442,12 +411,7 @@ findso:
if (tp->t_state == TCPS_CLOSED)
goto drop;
/* Unscale the window into a 32-bit value. */
/* if ((tiflags & TH_SYN) == 0)
* tiwin = ti->ti_win << tp->snd_scale;
* else
*/
tiwin = ti->ti_win;
tiwin = ti->ti_win;
/*
* Segment received on connection.
......@@ -465,8 +429,6 @@ findso:
*/
if (optp && tp->t_state != TCPS_LISTEN)
tcp_dooptions(tp, (u_char *)optp, optlen, ti);
/* , */
/* &ts_present, &ts_val, &ts_ecr); */
/*
* Header prediction: check for the two common cases
......@@ -488,20 +450,9 @@ findso:
*/
if (tp->t_state == TCPS_ESTABLISHED &&
(tiflags & (TH_SYN|TH_FIN|TH_RST|TH_URG|TH_ACK)) == TH_ACK &&
/* (!ts_present || TSTMP_GEQ(ts_val, tp->ts_recent)) && */
ti->ti_seq == tp->rcv_nxt &&
tiwin && tiwin == tp->snd_wnd &&
tp->snd_nxt == tp->snd_max) {
/*
* If last ACK falls within this segment's sequence numbers,
* record the timestamp.
*/
/* if (ts_present && SEQ_LEQ(ti->ti_seq, tp->last_ack_sent) &&
* SEQ_LT(tp->last_ack_sent, ti->ti_seq + ti->ti_len)) {
* tp->ts_recent_age = tcp_now;
* tp->ts_recent = ts_val;
* }
*/
if (ti->ti_len == 0) {
if (SEQ_GT(ti->ti_ack, tp->snd_una) &&
SEQ_LEQ(ti->ti_ack, tp->snd_max) &&
......@@ -510,11 +461,8 @@ findso:
* this is a pure ack for outstanding data.
*/
STAT(tcpstat.tcps_predack++);
/* if (ts_present)
* tcp_xmit_timer(tp, tcp_now-ts_ecr+1);
* else
*/ if (tp->t_rtt &&
SEQ_GT(ti->ti_ack, tp->t_rtseq))
if (tp->t_rtt &&
SEQ_GT(ti->ti_ack, tp->t_rtseq))
tcp_xmit_timer(tp, tp->t_rtt);
acked = ti->ti_ack - tp->snd_una;
STAT(tcpstat.tcps_rcvackpack++);
......@@ -537,13 +485,6 @@ findso:
else if (tp->t_timer[TCPT_PERSIST] == 0)
tp->t_timer[TCPT_REXMT] = tp->t_rxtcur;
/*
* There's room in so_snd, sowwakup will read()
* from the socket if we can
*/
/* if (so->so_snd.sb_flags & SB_NOTIFY)
* sowwakeup(so);
*/
/*
* This is called because sowwakeup might have
* put data into so_snd. Since we don't so sowwakeup,
......@@ -574,13 +515,6 @@ findso:
} else
sbappend(so, m);
/*
* XXX This is called when data arrives. Later, check
* if we can actually write() to the socket
* XXX Need to check? It's be NON_BLOCKING
*/
/* sorwakeup(so); */
/*
* If this is a short packet, then ACK now - with Nagel
* congestion avoidance sender won't send more until
......@@ -644,13 +578,6 @@ findso:
vnetwork_addr.s_addr) {
if (so->so_faddr.s_addr != vhost_addr.s_addr &&
so->so_faddr.s_addr != vnameserver_addr.s_addr) {
#if 0
if(lastbyte==CTL_CMD || lastbyte==CTL_EXEC) {
/* Command or exec adress */
so->so_state |= SS_CTL;
} else
#endif
{
/* May be an add exec */
for(ex_ptr = exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
if(ex_ptr->ex_fport == so->so_fport &&
......@@ -659,8 +586,9 @@ findso:
break;
}
}
}
if(so->so_state & SS_CTL) goto cont_input;
if (so->so_state & SS_CTL) {
goto cont_input;
}
}
/* CTL_ALIAS: Do nothing, tcp_fconnect will be called on it */
}
......@@ -718,8 +646,6 @@ findso:
if (optp)
tcp_dooptions(tp, (u_char *)optp, optlen, ti);
/* , */
/* &ts_present, &ts_val, &ts_ecr); */
if (iss)
tp->iss = iss;
......@@ -777,13 +703,6 @@ findso:
soisfconnected(so);
tp->t_state = TCPS_ESTABLISHED;
/* Do window scaling on this connection? */
/* if ((tp->t_flags & (TF_RCVD_SCALE|TF_REQ_SCALE)) ==
* (TF_RCVD_SCALE|TF_REQ_SCALE)) {
* tp->snd_scale = tp->requested_s_scale;
* tp->rcv_scale = tp->request_r_scale;
* }
*/
(void) tcp_reass(tp, (struct tcpiphdr *)0,
(struct mbuf *)0);
/*
......@@ -816,40 +735,10 @@ trimthenstep6:
} /* switch tp->t_state */
/*
* States other than LISTEN or SYN_SENT.
* First check timestamp, if present.
* Then check that at least some bytes of segment are within
* Check that at least some bytes of segment are within
* receive window. If segment begins before rcv_nxt,
* drop leading data (and SYN); if nothing left, just ack.
*
* RFC 1323 PAWS: If we have a timestamp reply on this segment
* and it's less than ts_recent, drop it.
*/
/* if (ts_present && (tiflags & TH_RST) == 0 && tp->ts_recent &&
* TSTMP_LT(ts_val, tp->ts_recent)) {
*
*/ /* Check to see if ts_recent is over 24 days old. */
/* if ((int)(tcp_now - tp->ts_recent_age) > TCP_PAWS_IDLE) {
*/ /*
* * Invalidate ts_recent. If this segment updates
* * ts_recent, the age will be reset later and ts_recent
* * will get a valid value. If it does not, setting
* * ts_recent to zero will at least satisfy the
* * requirement that zero be placed in the timestamp
* * echo reply when ts_recent isn't valid. The
* * age isn't reset until we get a valid ts_recent
* * because we don't want out-of-order segments to be
* * dropped when ts_recent is old.
* */
/* tp->ts_recent = 0;
* } else {
* tcpstat.tcps_rcvduppack++;
* tcpstat.tcps_rcvdupbyte += ti->ti_len;
* tcpstat.tcps_pawsdrop++;
* goto dropafterack;
* }
* }
*/
todrop = tp->rcv_nxt - ti->ti_seq;
if (todrop > 0) {
if (tiflags & TH_SYN) {
......@@ -947,18 +836,6 @@ trimthenstep6:
tiflags &= ~(TH_PUSH|TH_FIN);
}
/*
* If last ACK falls within this segment's sequence numbers,
* record its timestamp.
*/
/* if (ts_present && SEQ_LEQ(ti->ti_seq, tp->last_ack_sent) &&
* SEQ_LT(tp->last_ack_sent, ti->ti_seq + ti->ti_len +
* ((tiflags & (TH_SYN|TH_FIN)) != 0))) {
* tp->ts_recent_age = tcp_now;
* tp->ts_recent = ts_val;
* }
*/
/*
* If the RST bit is set examine the state:
* SYN_RECEIVED STATE:
......@@ -972,15 +849,10 @@ trimthenstep6:
if (tiflags&TH_RST) switch (tp->t_state) {
case TCPS_SYN_RECEIVED:
/* so->so_error = ECONNREFUSED; */
goto close;
case TCPS_ESTABLISHED:
case TCPS_FIN_WAIT_1:
case TCPS_FIN_WAIT_2:
case TCPS_CLOSE_WAIT:
/* so->so_error = ECONNRESET; */
close:
tp->t_state = TCPS_CLOSED;
STAT(tcpstat.tcps_drops++);
tp = tcp_close(tp);
......@@ -1048,13 +920,6 @@ trimthenstep6:
soisfconnected(so);
}
/* Do window scaling? */
/* if ((tp->t_flags & (TF_RCVD_SCALE|TF_REQ_SCALE)) ==
* (TF_RCVD_SCALE|TF_REQ_SCALE)) {
* tp->snd_scale = tp->requested_s_scale;
* tp->rcv_scale = tp->request_r_scale;
* }
*/
(void) tcp_reass(tp, (struct tcpiphdr *)0, (struct mbuf *)0);
tp->snd_wl1 = ti->ti_seq - 1;
/* Avoid ack processing; snd_una==ti_ack => dup ack */
......@@ -1155,19 +1020,13 @@ trimthenstep6:
STAT(tcpstat.tcps_rcvackbyte += acked);
/*
* If we have a timestamp reply, update smoothed
* round trip time. If no timestamp is present but
* transmit timer is running and timed sequence
* If transmit timer is running and timed sequence
* number was acked, update smoothed round trip time.
* Since we now have an rtt measurement, cancel the
* timer backoff (cf., Phil Karn's retransmit alg.).
* Recompute the initial retransmit timer.
*/
/* if (ts_present)
* tcp_xmit_timer(tp, tcp_now-ts_ecr+1);
* else
*/
if (tp->t_rtt && SEQ_GT(ti->ti_ack, tp->t_rtseq))
if (tp->t_rtt && SEQ_GT(ti->ti_ack, tp->t_rtseq))
tcp_xmit_timer(tp,tp->t_rtt);
/*
......@@ -1205,13 +1064,6 @@ trimthenstep6:
tp->snd_wnd -= acked;
ourfinisacked = 0;
}
/*
* XXX sowwakup is called when data is acked and there's room for
* for more data... it should read() the socket
*/
/* if (so->so_snd.sb_flags & SB_NOTIFY)
* sowwakeup(so);
*/
tp->snd_una = ti->ti_ack;
if (SEQ_LT(tp->snd_nxt, tp->snd_una))
tp->snd_nxt = tp->snd_una;
......@@ -1233,7 +1085,6 @@ trimthenstep6:
* we'll hang forever.
*/
if (so->so_state & SS_FCANTRCVMORE) {
soisfdisconnected(so);
tp->t_timer[TCPT_2MSL] = TCP_MAXIDLE;
}
tp->t_state = TCPS_FIN_WAIT_2;
......@@ -1251,7 +1102,6 @@ trimthenstep6:
tp->t_state = TCPS_TIME_WAIT;
tcp_canceltimers(tp);
tp->t_timer[TCPT_2MSL] = 2 * TCPTV_MSL;
soisfdisconnected(so);
}
break;
......@@ -1384,7 +1234,6 @@ dodata:
* will got to TCPS_LAST_ACK, and use tcp_output()
* to send the FIN.
*/
/* sofcantrcvmore(so); */
sofwdrain(so);
tp->t_flags |= TF_ACKNOW;
......@@ -1421,7 +1270,6 @@ dodata:
tp->t_state = TCPS_TIME_WAIT;
tcp_canceltimers(tp);
tp->t_timer[TCPT_2MSL] = 2 * TCPTV_MSL;
soisfdisconnected(so);
break;
/*
......@@ -1440,13 +1288,6 @@ dodata:
*
* See above.
*/
/* if (ti->ti_len && (unsigned)ti->ti_len < tp->t_maxseg) {
*/
/* if ((ti->ti_len && (unsigned)ti->ti_len < tp->t_maxseg &&
* (so->so_iptos & IPTOS_LOWDELAY) == 0) ||
* ((so->so_iptos & IPTOS_LOWDELAY) &&
* ((struct tcpiphdr_2 *)ti)->first_char == (char)27)) {
*/
if (ti->ti_len && (unsigned)ti->ti_len <= 5 &&
((struct tcpiphdr_2 *)ti)->first_char == (char)27) {
tp->t_flags |= TF_ACKNOW;
......@@ -1493,10 +1334,6 @@ drop:
return;
}
/* , ts_present, ts_val, ts_ecr) */
/* int *ts_present;
* u_int32_t *ts_val, *ts_ecr;
*/
static void
tcp_dooptions(struct tcpcb *tp, u_char *cp, int cnt, struct tcpiphdr *ti)
{
......@@ -1531,35 +1368,6 @@ tcp_dooptions(struct tcpcb *tp, u_char *cp, int cnt, struct tcpiphdr *ti)
NTOHS(mss);
(void) tcp_mss(tp, mss); /* sets t_maxseg */
break;
/* case TCPOPT_WINDOW:
* if (optlen != TCPOLEN_WINDOW)
* continue;
* if (!(ti->ti_flags & TH_SYN))
* continue;
* tp->t_flags |= TF_RCVD_SCALE;
* tp->requested_s_scale = min(cp[2], TCP_MAX_WINSHIFT);
* break;
*/
/* case TCPOPT_TIMESTAMP:
* if (optlen != TCPOLEN_TIMESTAMP)
* continue;
* *ts_present = 1;
* memcpy((char *) ts_val, (char *)cp + 2, sizeof(*ts_val));
* NTOHL(*ts_val);
* memcpy((char *) ts_ecr, (char *)cp + 6, sizeof(*ts_ecr));
* NTOHL(*ts_ecr);
*
*/ /*
* * A timestamp received in a SYN makes
* * it ok to send timestamp requests and replies.
* */
/* if (ti->ti_flags & TH_SYN) {
* tp->t_flags |= TF_RCVD_TSTMP;
* tp->ts_recent = *ts_val;
* tp->ts_recent_age = tcp_now;
* }
*/ break;
}
}
}
......
slirp/tcp_output.c
浏览文件 @ 0d62c4cf
......@@ -272,39 +272,9 @@ send:
mss = htons((u_int16_t) tcp_mss(tp, 0));
memcpy((caddr_t)(opt + 2), (caddr_t)&mss, sizeof(mss));
optlen = 4;
/* if ((tp->t_flags & TF_REQ_SCALE) &&
* ((flags & TH_ACK) == 0 ||
* (tp->t_flags & TF_RCVD_SCALE))) {
* *((u_int32_t *) (opt + optlen)) = htonl(
* TCPOPT_NOP << 24 |
* TCPOPT_WINDOW << 16 |
* TCPOLEN_WINDOW << 8 |
* tp->request_r_scale);
* optlen += 4;
* }
*/
}
}
/*
* Send a timestamp and echo-reply if this is a SYN and our side
* wants to use timestamps (TF_REQ_TSTMP is set) or both our side
* and our peer have sent timestamps in our SYN's.
*/
/* if ((tp->t_flags & (TF_REQ_TSTMP|TF_NOOPT)) == TF_REQ_TSTMP &&
* (flags & TH_RST) == 0 &&
* ((flags & (TH_SYN|TH_ACK)) == TH_SYN ||
* (tp->t_flags & TF_RCVD_TSTMP))) {
* u_int32_t *lp = (u_int32_t *)(opt + optlen);
*
* / * Form timestamp option as shown in appendix A of RFC 1323. * /
* *lp++ = htonl(TCPOPT_TSTAMP_HDR);
* *lp++ = htonl(tcp_now);
* *lp = htonl(tp->ts_recent);
* optlen += TCPOLEN_TSTAMP_APPA;
* }
*/
hdrlen += optlen;
/*
......@@ -334,28 +304,15 @@ send:
m = m_get();
if (m == NULL) {
/* error = ENOBUFS; */
error = 1;
goto out;
}
m->m_data += IF_MAXLINKHDR;
m->m_len = hdrlen;
/*
* This will always succeed, since we make sure our mbufs
* are big enough to hold one MSS packet + header + ... etc.
*/
/* if (len <= MHLEN - hdrlen - max_linkhdr) { */
sbcopy(&so->so_snd, off, (int) len, mtod(m, caddr_t) + hdrlen);
m->m_len += len;
sbcopy(&so->so_snd, off, (int) len, mtod(m, caddr_t) + hdrlen);
m->m_len += len;
/* } else {
* m->m_next = m_copy(so->so_snd.sb_mb, off, (int) len);
* if (m->m_next == 0)
* len = 0;
* }
*/
/*
* If we're sending everything we've got, set PUSH.
* (This will keep happy those implementations which only
......@@ -376,7 +333,6 @@ send:
m = m_get();
if (m == NULL) {
/* error = ENOBUFS; */
error = 1;
goto out;
}
......@@ -433,10 +389,6 @@ send:
if (SEQ_GT(tp->snd_up, tp->snd_una)) {
ti->ti_urp = htons((u_int16_t)(tp->snd_up - ntohl(ti->ti_seq)));
#ifdef notdef
if (SEQ_GT(tp->snd_up, tp->snd_nxt)) {
ti->ti_urp = htons((u_int16_t)(tp->snd_up - tp->snd_nxt));
#endif
ti->ti_flags |= TH_URG;
} else
/*
......@@ -523,32 +475,10 @@ send:
((struct ip *)ti)->ip_ttl = IPDEFTTL;
((struct ip *)ti)->ip_tos = so->so_iptos;
/* #if BSD >= 43 */
/* Don't do IP options... */
/* error = ip_output(m, tp->t_inpcb->inp_options, &tp->t_inpcb->inp_route,
* so->so_options & SO_DONTROUTE, 0);
*/
error = ip_output(so, m);
/* #else
* error = ip_output(m, (struct mbuf *)0, &tp->t_inpcb->inp_route,
* so->so_options & SO_DONTROUTE);
* #endif
*/
}
if (error) {
out:
/* if (error == ENOBUFS) {
* tcp_quench(tp->t_inpcb, 0);
* return (0);
* }
*/
/* if ((error == EHOSTUNREACH || error == ENETDOWN)
* && TCPS_HAVERCVDSYN(tp->t_state)) {
* tp->t_softerror = error;
* return (0);
* }
*/
return (error);
}
STAT(tcpstat.tcps_sndtotal++);
......@@ -574,9 +504,6 @@ tcp_setpersist(struct tcpcb *tp)
{
int t = ((tp->t_srtt >> 2) + tp->t_rttvar) >> 1;
/* if (tp->t_timer[TCPT_REXMT])
* panic("tcp_output REXMT");
*/
/*
* Start/restart persistence timer.
*/
......
slirp/tcp_subr.c
浏览文件 @ 0d62c4cf
......@@ -60,7 +60,6 @@ tcp_init(void)
* in a skeletal tcp/ip header, minimizing the amount of work
* necessary when the connection is used.
*/
/* struct tcpiphdr * */
void
tcp_template(struct tcpcb *tp)
{
......@@ -119,11 +118,7 @@ tcp_respond(struct tcpcb *tp, struct tcpiphdr *ti, struct mbuf *m,
if (m == NULL) {
if ((m = m_get()) == NULL)
return;
#ifdef TCP_COMPAT_42
tlen = 1;
#else
tlen = 0;
#endif
m->m_data += IF_MAXLINKHDR;
*mtod(m, struct tcpiphdr *) = *ti;
ti = mtod(m, struct tcpiphdr *);
......@@ -220,12 +215,6 @@ tcp_newtcpcb(struct socket *so)
*/
struct tcpcb *tcp_drop(struct tcpcb *tp, int err)
{
/* tcp_drop(tp, errno)
register struct tcpcb *tp;
int errno;
{
*/
DEBUG_CALL("tcp_drop");
DEBUG_ARG("tp = %lx", (long)tp);
DEBUG_ARG("errno = %d", errno);
......@@ -236,10 +225,6 @@ struct tcpcb *tcp_drop(struct tcpcb *tp, int err)
STAT(tcpstat.tcps_drops++);
} else
STAT(tcpstat.tcps_conndrops++);
/* if (errno == ETIMEDOUT && tp->t_softerror)
* errno = tp->t_softerror;
*/
/* so->so_error = errno; */
return (tcp_close(tp));
}
......@@ -267,14 +252,8 @@ tcp_close(struct tcpcb *tp)
remque(tcpiphdr2qlink(tcpiphdr_prev(t)));
m_freem(m);
}
/* It's static */
/* if (tp->t_template)
* (void) m_free(dtom(tp->t_template));
*/
/* free(tp, M_PCB); */
free(tp);
so->so_tcpcb = NULL;
soisfdisconnected(so);
/* clobber input socket cache if we're closing the cached connection */
if (so == tcp_last_so)
tcp_last_so = &tcb;
......@@ -286,30 +265,6 @@ tcp_close(struct tcpcb *tp)
return ((struct tcpcb *)0);
}
#ifdef notdef
void
tcp_drain()
{
/* XXX */
}
/*
* When a source quench is received, close congestion window
* to one segment. We will gradually open it again as we proceed.
*/
void
tcp_quench(i, errno)
int errno;
{
struct tcpcb *tp = intotcpcb(inp);
if (tp)
tp->snd_cwnd = tp->t_maxseg;
}
#endif /* notdef */
/*
* TCP protocol interface to socket abstraction.
*/
......@@ -349,9 +304,6 @@ tcp_sockclosed(struct tcpcb *tp)
tp->t_state = TCPS_LAST_ACK;
break;
}
/* soisfdisconnecting(tp->t_socket); */
if (tp && tp->t_state >= TCPS_FIN_WAIT_2)
soisfdisconnected(tp->t_socket);
if (tp)
tcp_output(tp);
}
......@@ -490,13 +442,6 @@ tcp_connect(struct socket *inso)
tcp_template(tp);
/* Compute window scaling to request. */
/* while (tp->request_r_scale < TCP_MAX_WINSHIFT &&
* (TCP_MAXWIN << tp->request_r_scale) < so->so_rcv.sb_hiwat)
* tp->request_r_scale++;
*/
/* soisconnecting(so); */ /* NOFDREF used instead */
STAT(tcpstat.tcps_connattempt++);
tp->t_state = TCPS_SYN_SENT;
......@@ -540,10 +485,7 @@ static const struct tos_t tcptos[] = {
{0, 0, 0, 0}
};
#ifdef CONFIG_QEMU
static
#endif
struct emu_t *tcpemu = NULL;
static struct emu_t *tcpemu = NULL;
/*
* Return TOS according to the above table
......@@ -575,10 +517,6 @@ tcp_tos(struct socket *so)
return 0;
}
#if 0
int do_echo = -1;
#endif
/*
* Emulate programs that try and connect to us
* This includes ftp (the data connection is
......@@ -661,302 +599,6 @@ tcp_emu(struct socket *so, struct mbuf *m)
return 0;
}
#if 0
case EMU_RLOGIN:
/*
* Rlogin emulation
* First we accumulate all the initial option negotiation,
* then fork_exec() rlogin according to the options
*/
{
int i, i2, n;
char *ptr;
char args[100];
char term[100];
struct sbuf *so_snd = &so->so_snd;
struct sbuf *so_rcv = &so->so_rcv;
/* First check if they have a priveladged port, or too much data has arrived */
if (ntohs(so->so_lport) > 1023 || ntohs(so->so_lport) < 512 ||
(m->m_len + so_rcv->sb_wptr) > (so_rcv->sb_data + so_rcv->sb_datalen)) {
memcpy(so_snd->sb_wptr, "Permission denied\n", 18);
so_snd->sb_wptr += 18;
so_snd->sb_cc += 18;
tcp_sockclosed(sototcpcb(so));
m_free(m);
return 0;
}
/* Append the current data */
memcpy(so_rcv->sb_wptr, m->m_data, m->m_len);
so_rcv->sb_wptr += m->m_len;
so_rcv->sb_rptr += m->m_len;
m_free(m);
/*
* Check if we have all the initial options,
* and build argument list to rlogin while we're here
*/
n = 0;
ptr = so_rcv->sb_data;
args[0] = 0;
term[0] = 0;
while (ptr < so_rcv->sb_wptr) {
if (*ptr++ == 0) {
n++;
if (n == 2) {
sprintf(args, "rlogin -l %s %s",
ptr, inet_ntoa(so->so_faddr));
} else if (n == 3) {
i2 = so_rcv->sb_wptr - ptr;
for (i = 0; i < i2; i++) {
if (ptr[i] == '/') {
ptr[i] = 0;
#ifdef HAVE_SETENV
sprintf(term, "%s", ptr);
#else
sprintf(term, "TERM=%s", ptr);
#endif
ptr[i] = '/';
break;
}
}
}
}
}
if (n != 4)
return 0;
/* We have it, set our term variable and fork_exec() */
#ifdef HAVE_SETENV
setenv("TERM", term, 1);
#else
putenv(term);
#endif
fork_exec(so, args, 2);
term[0] = 0;
so->so_emu = 0;
/* And finally, send the client a 0 character */
so_snd->sb_wptr[0] = 0;
so_snd->sb_wptr++;
so_snd->sb_cc++;
return 0;
}
case EMU_RSH:
/*
* rsh emulation
* First we accumulate all the initial option negotiation,
* then rsh_exec() rsh according to the options
*/
{
int n;
char *ptr;
char *user;
char *args;
struct sbuf *so_snd = &so->so_snd;
struct sbuf *so_rcv = &so->so_rcv;
/* First check if they have a priveladged port, or too much data has arrived */
if (ntohs(so->so_lport) > 1023 || ntohs(so->so_lport) < 512 ||
(m->m_len + so_rcv->sb_wptr) > (so_rcv->sb_data + so_rcv->sb_datalen)) {
memcpy(so_snd->sb_wptr, "Permission denied\n", 18);
so_snd->sb_wptr += 18;
so_snd->sb_cc += 18;
tcp_sockclosed(sototcpcb(so));
m_free(m);
return 0;
}
/* Append the current data */
memcpy(so_rcv->sb_wptr, m->m_data, m->m_len);
so_rcv->sb_wptr += m->m_len;
so_rcv->sb_rptr += m->m_len;
m_free(m);
/*
* Check if we have all the initial options,
* and build argument list to rlogin while we're here
*/
n = 0;
ptr = so_rcv->sb_data;
user="";
args="";
if (so->extra==NULL) {
struct socket *ns;
struct tcpcb* tp;
int port=atoi(ptr);
if (port <= 0) return 0;
if (port > 1023 || port < 512) {
memcpy(so_snd->sb_wptr, "Permission denied\n", 18);
so_snd->sb_wptr += 18;
so_snd->sb_cc += 18;
tcp_sockclosed(sototcpcb(so));
return 0;
}
if ((ns=socreate()) == NULL)
return 0;
if (tcp_attach(ns)<0) {
free(ns);
return 0;
}
ns->so_laddr=so->so_laddr;
ns->so_lport=htons(port);
(void) tcp_mss(sototcpcb(ns), 0);
ns->so_faddr=so->so_faddr;
ns->so_fport=htons(IPPORT_RESERVED-1); /* Use a fake port. */
if (ns->so_faddr.s_addr == 0 ||
ns->so_faddr.s_addr == loopback_addr.s_addr)
ns->so_faddr = alias_addr;
ns->so_iptos = tcp_tos(ns);
tp = sototcpcb(ns);
tcp_template(tp);
/* Compute window scaling to request. */
/* while (tp->request_r_scale < TCP_MAX_WINSHIFT &&
* (TCP_MAXWIN << tp->request_r_scale) < so->so_rcv.sb_hiwat)
* tp->request_r_scale++;
*/
/*soisfconnecting(ns);*/
STAT(tcpstat.tcps_connattempt++);
tp->t_state = TCPS_SYN_SENT;
tp->t_timer[TCPT_KEEP] = TCPTV_KEEP_INIT;
tp->iss = tcp_iss;
tcp_iss += TCP_ISSINCR/2;
tcp_sendseqinit(tp);
tcp_output(tp);
so->extra=ns;
}
while (ptr < so_rcv->sb_wptr) {
if (*ptr++ == 0) {
n++;
if (n == 2) {
user=ptr;
} else if (n == 3) {
args=ptr;
}
}
}
if (n != 4)
return 0;
rsh_exec(so,so->extra, user, inet_ntoa(so->so_faddr), args);
so->so_emu = 0;
so->extra=NULL;
/* And finally, send the client a 0 character */
so_snd->sb_wptr[0] = 0;
so_snd->sb_wptr++;
so_snd->sb_cc++;
return 0;
}
case EMU_CTL:
{
int num;
struct sbuf *so_snd = &so->so_snd;
struct sbuf *so_rcv = &so->so_rcv;
/*
* If there is binary data here, we save it in so->so_m
*/
if (!so->so_m) {
int rxlen;
char *rxdata;
rxdata=mtod(m, char *);
for (rxlen=m->m_len; rxlen; rxlen--) {
if (*rxdata++ & 0x80) {
so->so_m = m;
return 0;
}
}
} /* if(so->so_m==NULL) */
/*
* Append the line
*/
sbappendsb(so_rcv, m);
/* To avoid going over the edge of the buffer, we reset it */
if (so_snd->sb_cc == 0)
so_snd->sb_wptr = so_snd->sb_rptr = so_snd->sb_data;
/*
* A bit of a hack:
* If the first packet we get here is 1 byte long, then it
* was done in telnet character mode, therefore we must echo
* the characters as they come. Otherwise, we echo nothing,
* because in linemode, the line is already echoed
* XXX two or more control connections won't work
*/
if (do_echo == -1) {
if (m->m_len == 1) do_echo = 1;
else do_echo = 0;
}
if (do_echo) {
sbappendsb(so_snd, m);
m_free(m);
tcp_output(sototcpcb(so)); /* XXX */
} else
m_free(m);
num = 0;
while (num < so->so_rcv.sb_cc) {
if (*(so->so_rcv.sb_rptr + num) == '\n' ||
*(so->so_rcv.sb_rptr + num) == '\r') {
int n;
*(so_rcv->sb_rptr + num) = 0;
if (ctl_password && !ctl_password_ok) {
/* Need a password */
if (sscanf(so_rcv->sb_rptr, "pass %256s", buff) == 1) {
if (strcmp(buff, ctl_password) == 0) {
ctl_password_ok = 1;
n = sprintf(so_snd->sb_wptr,
"Password OK.\r\n");
goto do_prompt;
}
}
n = sprintf(so_snd->sb_wptr,
"Error: Password required, log on with \"pass PASSWORD\"\r\n");
goto do_prompt;
}
cfg_quitting = 0;
n = do_config(so_rcv->sb_rptr, so, PRN_SPRINTF);
if (!cfg_quitting) {
/* Register the printed data */
do_prompt:
so_snd->sb_cc += n;
so_snd->sb_wptr += n;
/* Add prompt */
n = sprintf(so_snd->sb_wptr, "Slirp> ");
so_snd->sb_cc += n;
so_snd->sb_wptr += n;
}
/* Drop so_rcv data */
so_rcv->sb_cc = 0;
so_rcv->sb_wptr = so_rcv->sb_rptr = so_rcv->sb_data;
tcp_output(sototcpcb(so)); /* Send the reply */
}
num++;
}
return 0;
}
#endif
case EMU_FTP: /* ftp */
*(m->m_data+m->m_len) = 0; /* NUL terminate for strstr */
if ((bptr = (char *)strstr(m->m_data, "ORT")) != NULL) {
......@@ -1100,7 +742,7 @@ do_prompt:
* A typical packet for player version 1.0 (release version):
*
* 0000:50 4E 41 00 05
* 0000:00 01 00 02 1B D7 00 00 67 E6 6C DC 63 00 12 50 .....×..gælÜc..P
* 0000:00 01 00 02 1B D7 00 00 67 E6 6C DC 63 00 12 50 ........g.l.c..P
* 0010:4E 43 4C 49 45 4E 54 20 31 30 31 20 41 4C 50 48 NCLIENT 101 ALPH
* 0020:41 6C 00 00 52 00 17 72 61 66 69 6C 65 73 2F 76 Al..R..rafiles/v
* 0030:6F 61 2F 65 6E 67 6C 69 73 68 5F 2E 72 61 79 42 oa/english_.rayB
......@@ -1112,8 +754,8 @@ do_prompt:
*
* A typical packet for player version 2.0 (beta):
*
* 0000:50 4E 41 00 06 00 02 00 00 00 01 00 02 1B C1 00 PNA...........Á.
* 0010:00 67 75 78 F5 63 00 0A 57 69 6E 32 2E 30 2E 30 .guxõc..Win2.0.0
* 0000:50 4E 41 00 06 00 02 00 00 00 01 00 02 1B C1 00 PNA.............
* 0010:00 67 75 78 F5 63 00 0A 57 69 6E 32 2E 30 2E 30 .gux.c..Win2.0.0
* 0020:2E 35 6C 00 00 52 00 1C 72 61 66 69 6C 65 73 2F .5l..R..rafiles/
* 0030:77 65 62 73 69 74 65 2F 32 30 72 65 6C 65 61 73 website/20releas
* 0040:65 2E 72 61 79 53 00 00 06 36 42 e.rayS...6B
......
slirp/tcp_timer.c
浏览文件 @ 0d62c4cf
......@@ -102,10 +102,6 @@ tpgone:
;
}
tcp_iss += TCP_ISSINCR/PR_SLOWHZ; /* increment iss */
#ifdef TCP_COMPAT_42
if ((int)tcp_iss < 0)
tcp_iss = 0; /* XXX */
#endif
tcp_now++; /* for timestamps */
}
......@@ -210,7 +206,6 @@ tcp_timers(register struct tcpcb *tp, int timer)
* retransmit times until then.
*/
if (tp->t_rxtshift > TCP_MAXRXTSHIFT / 4) {
/* in_losing(tp->t_inpcb); */
tp->t_rttvar += (tp->t_srtt >> TCP_RTT_SHIFT);
tp->t_srtt = 0;
}
......@@ -275,7 +270,6 @@ tcp_timers(register struct tcpcb *tp, int timer)
if (tp->t_state < TCPS_ESTABLISHED)
goto dropit;
/* if (tp->t_socket->so_options & SO_KEEPALIVE && */
if ((SO_OPTIONS) && tp->t_state <= TCPS_CLOSE_WAIT) {
if (tp->t_idle >= TCPTV_KEEP_IDLE + TCP_MAXIDLE)
goto dropit;
......@@ -292,17 +286,8 @@ tcp_timers(register struct tcpcb *tp, int timer)
* correspondent TCP to respond.
*/
STAT(tcpstat.tcps_keepprobe++);
#ifdef TCP_COMPAT_42
/*
* The keepalive packet must have nonzero length
* to get a 4.2 host to respond.
*/
tcp_respond(tp, &tp->t_template, (struct mbuf *)NULL,
tp->rcv_nxt - 1, tp->snd_una - 1, 0);
#else
tcp_respond(tp, &tp->t_template, (struct mbuf *)NULL,
tp->rcv_nxt, tp->snd_una - 1, 0);
#endif
tp->t_timer[TCPT_KEEP] = TCPTV_KEEPINTVL;
} else
tp->t_timer[TCPT_KEEP] = TCPTV_KEEP_IDLE;
......@@ -310,7 +295,7 @@ tcp_timers(register struct tcpcb *tp, int timer)
dropit:
STAT(tcpstat.tcps_keepdrops++);
tp = tcp_drop(tp, 0); /* ETIMEDOUT); */
tp = tcp_drop(tp, 0);
break;
}
......
slirp/tcp_timer.h
浏览文件 @ 0d62c4cf
......@@ -98,7 +98,6 @@
#define TCPTV_KEEPCNT 8 /* max probes before drop */
#define TCPTV_MIN ( 1*PR_SLOWHZ) /* minimum allowable value */
/* #define TCPTV_REXMTMAX ( 64*PR_SLOWHZ) */ /* max allowable REXMT value */
#define TCPTV_REXMTMAX ( 12*PR_SLOWHZ) /* max allowable REXMT value */
#define TCP_LINGERTIME 120 /* linger at most 2 minutes */
......@@ -106,11 +105,6 @@
#define TCP_MAXRXTSHIFT 12 /* maximum retransmits */
#ifdef TCPTIMERS
char *tcptimers[] =
{ "REXMT", "PERSIST", "KEEP", "2MSL" };
#endif
/*
* Force a time value to be in a certain range.
*/
......
slirp/tcp_var.h
浏览文件 @ 0d62c4cf
......@@ -61,9 +61,7 @@ struct tcpcb {
#define TF_RCVD_TSTMP 0x0100 /* a timestamp was received in SYN */
#define TF_SACK_PERMIT 0x0200 /* other side said I could SACK */
/* Make it static for now */
/* struct tcpiphdr *t_template; / * skeletal packet for transmit */
struct tcpiphdr t_template;
struct tcpiphdr t_template; /* static skeletal packet for xmit */
struct socket *t_socket; /* back pointer to socket */
/*
......@@ -199,7 +197,6 @@ struct tcpstat {
u_long tcps_rcvbyte; /* bytes received in sequence */
u_long tcps_rcvbadsum; /* packets received with ccksum errs */
u_long tcps_rcvbadoff; /* packets received with bad offset */
/* u_long tcps_rcvshort; */ /* packets received too short */
u_long tcps_rcvduppack; /* duplicate-only packets received */
u_long tcps_rcvdupbyte; /* duplicate-only bytes received */
u_long tcps_rcvpartduppack; /* packets with some duplicate data */
......@@ -215,7 +212,6 @@ struct tcpstat {
u_long tcps_rcvackpack; /* rcvd ack packets */
u_long tcps_rcvackbyte; /* bytes acked by rcvd acks */
u_long tcps_rcvwinupd; /* rcvd window update packets */
/* u_long tcps_pawsdrop; */ /* segments dropped due to PAWS */
u_long tcps_predack; /* times hdr predict ok for acks */
u_long tcps_preddat; /* times hdr predict ok for data pkts */
u_long tcps_socachemiss; /* tcp_last_so misses */
......
slirp/tftp.c
浏览文件 @ 0d62c4cf
......@@ -23,7 +23,7 @@
*/
#include <slirp.h>
#include "qemu-common.h" // for pstrcpy
#include "qemu-common.h"
struct tftp_session {
int in_use;
......
slirp/udp.c
浏览文件 @ 0d62c4cf
......@@ -50,16 +50,6 @@ struct socket udb;
static u_int8_t udp_tos(struct socket *so);
static void udp_emu(struct socket *so, struct mbuf *m);
/*
* UDP protocol implementation.
* Per RFC 768, August, 1980.
*/
#ifndef COMPAT_42
#define UDPCKSUM 1
#else
#define UDPCKSUM 0 /* XXX */
#endif
struct socket *udp_last_so = &udb;
void
......@@ -76,7 +66,6 @@ udp_input(register struct mbuf *m, int iphlen)
{
register struct ip *ip;
register struct udphdr *uh;
/* struct mbuf *opts = 0;*/
int len;
struct ip save_ip;
struct socket *so;
......@@ -129,14 +118,10 @@ udp_input(register struct mbuf *m, int iphlen)
/*
* Checksum extended UDP header and data.
*/
if (UDPCKSUM && uh->uh_sum) {
if (uh->uh_sum) {
memset(&((struct ipovly *)ip)->ih_mbuf, 0, sizeof(struct mbuf_ptr));
((struct ipovly *)ip)->ih_x1 = 0;
((struct ipovly *)ip)->ih_len = uh->uh_ulen;
/* keep uh_sum for ICMP reply
* uh->uh_sum = cksum(m, len + sizeof (struct ip));
* if (uh->uh_sum) {
*/
if(cksum(m, len + sizeof(struct ip))) {
STAT(udpstat.udps_badsum++);
goto bad;
......@@ -201,7 +186,6 @@ udp_input(register struct mbuf *m, int iphlen)
/*
* Setup fields
*/
/* udp_last_so = so; */
so->so_laddr = ip->ip_src;
so->so_lport = uh->uh_sport;
......@@ -246,7 +230,6 @@ udp_input(register struct mbuf *m, int iphlen)
return;
bad:
m_freem(m);
/* if (opts) m_freem(opts); */
return;
}
......@@ -277,7 +260,7 @@ int udp_output2(struct socket *so, struct mbuf *m,
memset(&ui->ui_i.ih_mbuf, 0 , sizeof(struct mbuf_ptr));
ui->ui_x1 = 0;
ui->ui_pr = IPPROTO_UDP;
ui->ui_len = htons(m->m_len - sizeof(struct ip)); /* + sizeof (struct udphdr)); */
ui->ui_len = htons(m->m_len - sizeof(struct ip));
/* XXXXX Check for from-one-location sockets, or from-any-location sockets */
ui->ui_src = saddr->sin_addr;
ui->ui_dst = daddr->sin_addr;
......@@ -289,10 +272,8 @@ int udp_output2(struct socket *so, struct mbuf *m,
* Stuff checksum and output datagram.
*/
ui->ui_sum = 0;
if (UDPCKSUM) {
if ((ui->ui_sum = cksum(m, /* sizeof (struct udpiphdr) + */ m->m_len)) == 0)
if ((ui->ui_sum = cksum(m, m->m_len)) == 0)
ui->ui_sum = 0xffff;
}
((struct ip *)ui)->ip_len = m->m_len;
((struct ip *)ui)->ip_ttl = IPDEFTTL;
......@@ -363,8 +344,6 @@ void
udp_detach(struct socket *so)
{
closesocket(so->s);
/* if (so->so_m) m_free(so->so_m); done by sofree */
sofree(so);
}
......@@ -651,7 +630,6 @@ udp_listen(u_int32_t haddr, u_int hport, u_int32_t laddr, u_int lport,
return NULL;
}
setsockopt(so->s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(int));
/* setsockopt(so->s,SOL_SOCKET,SO_OOBINLINE,(char *)&opt,sizeof(int)); */
getsockname(so->s,(struct sockaddr *)&addr,&addrlen);
so->so_fport = addr.sin_port;
......
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