#include <slirp.h>
-int if_queued = 0; /* Number of packets queued so far */
-
-struct mbuf if_fastq; /* fast queue (for interactive data) */
-struct mbuf if_batchq; /* queue for non-interactive data */
-struct mbuf *next_m; /* Pointer to next mbuf to output */
-
#define ifs_init(ifm) ((ifm)->ifs_next = (ifm)->ifs_prev = (ifm))
-void
-ifs_insque(ifm, ifmhead)
- struct mbuf *ifm, *ifmhead;
+static void
+ifs_insque(struct mbuf *ifm, struct mbuf *ifmhead)
{
ifm->ifs_next = ifmhead->ifs_next;
ifmhead->ifs_next = ifm;
ifm->ifs_next->ifs_prev = ifm;
}
-void
-ifs_remque(ifm)
- struct mbuf *ifm;
+static void
+ifs_remque(struct mbuf *ifm)
{
ifm->ifs_prev->ifs_next = ifm->ifs_next;
ifm->ifs_next->ifs_prev = ifm->ifs_prev;
}
void
-if_init()
-{
- 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;
+if_init(Slirp *slirp)
{
- 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;
+ slirp->if_fastq.ifq_next = slirp->if_fastq.ifq_prev = &slirp->if_fastq;
+ slirp->if_batchq.ifq_next = slirp->if_batchq.ifq_prev = &slirp->if_batchq;
+ slirp->next_m = &slirp->if_batchq;
}
/*
- * 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.
* Each output queue is a doubly linked list of double linked lists
* it'll temporarily get downgraded to the batchq)
*/
void
-if_output(so, ifm)
- struct socket *so;
- struct mbuf *ifm;
+if_output(struct socket *so, struct mbuf *ifm)
{
+ Slirp *slirp = ifm->slirp;
struct mbuf *ifq;
int on_fastq = 1;
* We mustn't put this packet back on the fastq (or we'll send it out of order)
* XXX add cache here?
*/
- for (ifq = if_batchq.ifq_prev; ifq != &if_batchq; ifq = ifq->ifq_prev) {
+ for (ifq = slirp->if_batchq.ifq_prev; ifq != &slirp->if_batchq;
+ ifq = ifq->ifq_prev) {
if (so == ifq->ifq_so) {
/* A match! */
ifm->ifq_so = so;
/* No match, check which queue to put it on */
if (so && (so->so_iptos & IPTOS_LOWDELAY)) {
- ifq = if_fastq.ifq_prev;
+ ifq = slirp->if_fastq.ifq_prev;
on_fastq = 1;
/*
* Check if this packet is a part of the last
goto diddit;
}
} else
- ifq = if_batchq.ifq_prev;
+ ifq = slirp->if_batchq.ifq_prev;
/* Create a new doubly linked list for this session */
ifm->ifq_so = so;
insque(ifm, ifq);
diddit:
- ++if_queued;
+ slirp->if_queued++;
if (so) {
/* Update *_queued */
remque(ifm->ifs_next);
/* ...And insert in the new. That'll teach ya! */
- insque(ifm->ifs_next, &if_batchq);
+ insque(ifm->ifs_next, &slirp->if_batchq);
}
}
/*
* This prevents us from malloc()ing too many mbufs
*/
- if (link_up) {
- /* if_start will check towrite */
- if_start();
- }
+ if_start(ifm->slirp);
#endif
}
* to the first, etc. etc.
*/
void
-if_start(void)
+if_start(Slirp *slirp)
{
struct mbuf *ifm, *ifqt;
DEBUG_CALL("if_start");
- if (if_queued == 0)
+ if (slirp->if_queued == 0)
return; /* Nothing to do */
again:
/* check if we can really output */
- if (!slirp_can_output())
+ if (!slirp_can_output(slirp->opaque))
return;
/*
* See which queue to get next packet from
* If there's something in the fastq, select it immediately
*/
- if (if_fastq.ifq_next != &if_fastq) {
- ifm = if_fastq.ifq_next;
+ if (slirp->if_fastq.ifq_next != &slirp->if_fastq) {
+ ifm = slirp->if_fastq.ifq_next;
} else {
/* Nothing on fastq, see if next_m is valid */
- if (next_m != &if_batchq)
- ifm = next_m;
+ if (slirp->next_m != &slirp->if_batchq)
+ ifm = slirp->next_m;
else
- ifm = if_batchq.ifq_next;
+ ifm = slirp->if_batchq.ifq_next;
/* Set which packet to send on next iteration */
- next_m = ifm->ifq_next;
+ slirp->next_m = ifm->ifq_next;
}
/* Remove it from the queue */
ifqt = ifm->ifq_prev;
remque(ifm);
- --if_queued;
+ slirp->if_queued--;
/* If there are more packets for this session, re-queue them */
if (ifm->ifs_next != /* ifm->ifs_prev != */ ifm) {
}
/* Encapsulate the packet for sending */
- if_encap(ifm->m_data, ifm->m_len);
+ if_encap(slirp, (uint8_t *)ifm->m_data, ifm->m_len);
m_free(ifm);
- if (if_queued)
+ if (slirp->if_queued)
goto again;
}
projects / qemu / blobdiff