#include "h/smp_lock.h"
#endif
#include <asm/uaccess.h>
-#ifdef ADAPT_PMTU
-#include <linux/errqueue.h>
-#include <linux/icmp.h>
-#endif
/* rxk_NewSocket
* open and bind RX socket
struct sockaddr_in myaddr;
int code;
KERNEL_SPACE_DECL;
-#ifdef ADAPT_PMTU
- int pmtu = IP_PMTUDISC_WANT;
- int do_recverr = 1;
-#else
int pmtu = IP_PMTUDISC_DONT;
-#endif
/* We need a better test for this. if you need it back, tell us
* how to detect it.
TO_USER_SPACE();
sockp->ops->setsockopt(sockp, SOL_IP, IP_MTU_DISCOVER, (char *)&pmtu,
sizeof(pmtu));
-#ifdef ADAPT_PMTU
- sockp->ops->setsockopt(sockp, SOL_IP, IP_RECVERR, (char *)&do_recverr,
- sizeof(do_recverr));
-#endif
TO_KERNEL_SPACE();
return (osi_socket *)sockp;
}
return 0;
}
-#ifdef ADAPT_PMTU
-void
-handle_socket_error(osi_socket so)
-{
- KERNEL_SPACE_DECL;
- struct msghdr msg;
- struct cmsghdr *cmsg;
- struct sock_extended_err *err;
- struct sockaddr_in addr;
- struct sockaddr *offender;
- char *controlmsgbuf;
- int code;
- struct socket *sop = (struct socket *)so;
-
- if (!(controlmsgbuf=rxi_Alloc(256)))
- return;
- msg.msg_name = &addr;
- msg.msg_namelen = sizeof(addr);
- msg.msg_iov = NULL;
- msg.msg_iovlen = 0;
- msg.msg_control = controlmsgbuf;
- msg.msg_controllen = 256;
- msg.msg_flags = 0;
-
- TO_USER_SPACE();
- code = sock_recvmsg(sop, &msg, 256, MSG_ERRQUEUE|MSG_DONTWAIT|MSG_TRUNC);
- TO_KERNEL_SPACE();
-
- if (code < 0 || !(msg.msg_flags & MSG_ERRQUEUE))
- goto out;
-
- for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
- if (CMSG_OK(&msg, cmsg) && cmsg->cmsg_level == SOL_IP &&
- cmsg->cmsg_type == IP_RECVERR)
- break;
- }
- if (!cmsg)
- goto out;
- err = CMSG_DATA(cmsg);
- offender = SO_EE_OFFENDER(err);
-
- if (offender->sa_family != AF_INET)
- goto out;
-
- memcpy(&addr, offender, sizeof(addr));
-
- if (err->ee_origin == SO_EE_ORIGIN_ICMP &&
- err->ee_type == ICMP_DEST_UNREACH &&
- err->ee_code == ICMP_FRAG_NEEDED) {
- rxi_SetPeerMtu(NULL, ntohl(addr.sin_addr.s_addr), ntohs(addr.sin_port),
- err->ee_info);
- }
- /* other DEST_UNREACH's and TIME_EXCEEDED should be dealt with too */
-
-out:
- rxi_Free(controlmsgbuf, 256);
- return;
-}
-#endif
-
/* osi_NetSend
*
* Return codes:
KERNEL_SPACE_DECL;
struct msghdr msg;
int code;
-#ifdef ADAPT_PMTU
- int sockerr;
- size_t esize;
-
- while (1) {
- sockerr=0;
- esize = sizeof(sockerr);
- TO_USER_SPACE();
- sop->ops->getsockopt(sop, SOL_SOCKET, SO_ERROR, (char *)&sockerr,
- &esize);
- TO_KERNEL_SPACE();
- if (sockerr == 0)
- break;
- handle_socket_error(sop);
- }
-#endif
msg.msg_iovlen = iovcnt;
msg.msg_iov = iovec;
KERNEL_SPACE_DECL;
struct msghdr msg;
int code;
-#ifdef ADAPT_PMTU
- int sockerr;
- size_t esize;
-#endif
struct iovec tmpvec[RX_MAXWVECS + 2];
struct socket *sop = (struct socket *)so;
if (iovcnt > RX_MAXWVECS + 2) {
osi_Panic("Too many (%d) iovecs passed to osi_NetReceive\n", iovcnt);
}
-#ifdef ADAPT_PMTU
- while (1) {
- sockerr=0;
- esize = sizeof(sockerr);
- TO_USER_SPACE();
- sop->ops->getsockopt(sop, SOL_SOCKET, SO_ERROR, (char *)&sockerr,
- &esize);
- TO_KERNEL_SPACE();
- if (sockerr == 0)
- break;
- handle_socket_error(so);
- }
-#endif
memcpy(tmpvec, iov, iovcnt * sizeof(struct iovec));
msg.msg_name = from;
msg.msg_iov = tmpvec;