818 lines
18 KiB
C
818 lines
18 KiB
C
/*
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generic/psip.c
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Implementation of a pseudo IP device.
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Created: Apr 22, 1993 by Philip Homburg
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Copyright 1995 Philip Homburg
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*/
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#include "inet.h"
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#include "assert.h"
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#include "buf.h"
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#include "event.h"
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#include "type.h"
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#include "ip_int.h"
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#include "psip.h"
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#include "sr.h"
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THIS_FILE
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typedef struct psip_port
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{
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int pp_flags;
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int pp_ipdev;
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int pp_opencnt;
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struct psip_fd *pp_rd_head;
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struct psip_fd *pp_rd_tail;
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acc_t *pp_promisc_head;
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acc_t *pp_promisc_tail;
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} psip_port_t;
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#define PPF_EMPTY 0
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#define PPF_CONFIGURED 1
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#define PPF_ENABLED 2
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#define PPF_PROMISC 4
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#define PSIP_FD_NR (1*IP_PORT_MAX)
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typedef struct psip_fd
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{
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int pf_flags;
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int pf_srfd;
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psip_port_t *pf_port;
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get_userdata_t pf_get_userdata;
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put_userdata_t pf_put_userdata;
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struct psip_fd *pf_rd_next;
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size_t pf_rd_count;
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nwio_psipopt_t pf_psipopt;
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} psip_fd_t;
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#define PFF_EMPTY 0
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#define PFF_INUSE 1
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#define PFF_READ_IP 2
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#define PFF_PROMISC 4
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#define PFF_NEXTHOP 8
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static psip_port_t *psip_port_table;
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static psip_fd_t psip_fd_table[PSIP_FD_NR];
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static int psip_open ARGS(( int port, int srfd,
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get_userdata_t get_userdata, put_userdata_t put_userdata,
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put_pkt_t pkt_pkt, select_res_t select_res ));
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static int psip_ioctl ARGS(( int fd, ioreq_t req ));
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static int psip_read ARGS(( int fd, size_t count ));
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static int psip_write ARGS(( int fd, size_t count ));
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static int psip_select ARGS(( int port_nr, unsigned operations ));
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static void psip_close ARGS(( int fd ));
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static int psip_cancel ARGS(( int fd, int which_operation ));
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static void promisc_restart_read ARGS(( psip_port_t *psip_port ));
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static int psip_setopt ARGS(( psip_fd_t *psip_fd, nwio_psipopt_t *newoptp ));
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static void psip_buffree ARGS(( int priority ));
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static void check_promisc ARGS(( psip_port_t *psip_port ));
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#ifdef BUF_CONSISTENCY_CHECK
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static void psip_bufcheck ARGS(( void ));
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#endif
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static void reply_thr_put ARGS(( psip_fd_t *psip_fd, int reply,
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int for_ioctl ));
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static void reply_thr_get ARGS(( psip_fd_t *psip_fd, int reply,
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int for_ioctl ));
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void psip_prep()
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{
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psip_port_table= alloc(psip_conf_nr * sizeof(psip_port_table[0]));
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}
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void psip_init()
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{
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int i;
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psip_port_t *psip_port;
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psip_fd_t *psip_fd;
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for (i=0, psip_port= psip_port_table; i<psip_conf_nr; i++, psip_port++)
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psip_port->pp_flags= PPF_EMPTY;
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for (i=0, psip_fd= psip_fd_table; i<PSIP_FD_NR; i++, psip_fd++)
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psip_fd->pf_flags= PFF_EMPTY;
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for (i=0, psip_port= psip_port_table; i<psip_conf_nr; i++, psip_port++)
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{
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psip_port->pp_flags |= PPF_CONFIGURED;
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psip_port->pp_opencnt= 0;
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psip_port->pp_rd_head= NULL;
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psip_port->pp_promisc_head= NULL;
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}
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#ifndef BUF_CONSISTENCY_CHECK
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bf_logon(psip_buffree);
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#else
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bf_logon(psip_buffree, psip_bufcheck);
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#endif
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}
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int psip_enable(port_nr, ip_port_nr)
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int port_nr;
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int ip_port_nr;
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{
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psip_port_t *psip_port;
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assert(port_nr >= 0);
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if (port_nr >= psip_conf_nr)
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return -1;
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psip_port= &psip_port_table[port_nr];
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if (!(psip_port->pp_flags &PPF_CONFIGURED))
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return -1;
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psip_port->pp_ipdev= ip_port_nr;
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psip_port->pp_flags |= PPF_ENABLED;
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sr_add_minor(if2minor(psip_conf[port_nr].pc_ifno, PSIP_DEV_OFF),
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port_nr, psip_open, psip_close, psip_read,
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psip_write, psip_ioctl, psip_cancel, psip_select);
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return NW_OK;
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}
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int psip_send(port_nr, dest, pack)
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int port_nr;
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ipaddr_t dest;
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acc_t *pack;
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{
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psip_port_t *psip_port;
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psip_fd_t *psip_fd, *mark_fd;
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int i, result, result1;
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size_t buf_size, extrasize;
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acc_t *hdr_pack, *acc;
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psip_io_hdr_t *hdr;
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assert(port_nr >= 0 && port_nr < psip_conf_nr);
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psip_port= &psip_port_table[port_nr];
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if (psip_port->pp_opencnt == 0)
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{
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bf_afree(pack);
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return NW_OK;
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}
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for(;;)
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{
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mark_fd= psip_port->pp_rd_tail;
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for(i= 0; i<PSIP_FD_NR; i++)
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{
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psip_fd= psip_port->pp_rd_head;
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if (!psip_fd)
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return NW_SUSPEND;
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psip_port->pp_rd_head= psip_fd->pf_rd_next;
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if (!(psip_fd->pf_flags & PFF_PROMISC))
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break;
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psip_fd->pf_rd_next= NULL;
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if (psip_port->pp_rd_head == NULL)
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psip_port->pp_rd_head= psip_fd;
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else
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psip_port->pp_rd_tail->pf_rd_next= psip_fd;
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psip_port->pp_rd_tail= psip_fd;
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if (psip_fd == mark_fd)
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return NW_SUSPEND;
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}
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if (i == PSIP_FD_NR)
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ip_panic(( "psip_send: loop" ));
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assert(psip_fd->pf_flags & PFF_READ_IP);
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psip_fd->pf_flags &= ~PFF_READ_IP;
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if (psip_fd->pf_flags & PFF_NEXTHOP)
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extrasize= sizeof(dest);
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else
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extrasize= 0;
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buf_size= bf_bufsize(pack);
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if (buf_size+extrasize <= psip_fd->pf_rd_count)
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{
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if (psip_port->pp_flags & PPF_PROMISC)
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{
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/* Deal with promiscuous mode. */
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hdr_pack= bf_memreq(sizeof(*hdr));
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hdr= (psip_io_hdr_t *)ptr2acc_data(hdr_pack);
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memset(hdr, '\0', sizeof(*hdr));
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hdr->pih_flags |= PF_LOC2REM;
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hdr->pih_nexthop= dest;
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pack->acc_linkC++;
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hdr_pack->acc_next= pack;
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hdr_pack->acc_ext_link= NULL;
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if (psip_port->pp_promisc_head)
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{
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/* Append at the end. */
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psip_port->pp_promisc_tail->
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acc_ext_link= hdr_pack;
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psip_port->pp_promisc_tail= hdr_pack;
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}
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else
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{
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/* First packet. */
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psip_port->pp_promisc_head= hdr_pack;
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psip_port->pp_promisc_tail= hdr_pack;
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if (psip_port->pp_rd_head)
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promisc_restart_read(psip_port);
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}
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}
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if (extrasize)
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{
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/* Prepend nexthop address */
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acc= bf_memreq(sizeof(dest));
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*(ipaddr_t *)(ptr2acc_data(acc))= dest;
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acc->acc_next= pack;
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pack= acc; acc= NULL;
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buf_size += extrasize;
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}
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result= (*psip_fd->pf_put_userdata)(psip_fd->pf_srfd,
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(size_t)0, pack, FALSE);
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if (result == NW_OK)
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result= buf_size;
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}
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else
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result= EPACKSIZE;
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result1= (*psip_fd->pf_put_userdata)(psip_fd->pf_srfd,
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(size_t)result, NULL, FALSE);
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assert(result1 == NW_OK);
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if (result == EPACKSIZE)
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continue;
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return NW_OK;
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}
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return NW_SUSPEND;
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}
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static int psip_open(port, srfd, get_userdata, put_userdata, put_pkt,
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select_res)
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int port;
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int srfd;
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get_userdata_t get_userdata;
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put_userdata_t put_userdata;
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put_pkt_t put_pkt;
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select_res_t select_res;
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{
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psip_port_t *psip_port;
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psip_fd_t *psip_fd;
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int i;
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assert(port >= 0 && port < psip_conf_nr);
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psip_port= &psip_port_table[port];
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if (!(psip_port->pp_flags & PPF_ENABLED))
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return ENXIO;
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for (i= 0, psip_fd= psip_fd_table; i<PSIP_FD_NR; i++, psip_fd++)
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{
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if (psip_fd->pf_flags & PFF_INUSE)
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continue;
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break;
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}
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if (i == PSIP_FD_NR)
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return ENFILE;
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psip_fd->pf_flags |= PFF_INUSE;
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psip_fd->pf_srfd= srfd;
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psip_fd->pf_port= psip_port;
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psip_fd->pf_get_userdata= get_userdata;
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psip_fd->pf_put_userdata= put_userdata;
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psip_port->pp_opencnt++;
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return i;
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}
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static int psip_ioctl(fd, req)
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int fd;
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ioreq_t req;
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{
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int result;
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psip_fd_t *psip_fd;
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acc_t *data;
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nwio_ipconf_t *ipconfp;
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nwio_psipopt_t *psip_opt, *newoptp;
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assert(fd >= 0 && fd < PSIP_FD_NR);
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psip_fd= &psip_fd_table[fd];
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switch(req)
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{
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case NWIOSIPCONF:
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data= (*psip_fd->pf_get_userdata)(psip_fd->pf_srfd, 0,
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sizeof(*ipconfp), TRUE);
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if (!data)
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{
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result= EFAULT;
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break;
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}
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data= bf_packIffLess(data, sizeof(*ipconfp));
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assert (data->acc_length == sizeof(*ipconfp));
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ipconfp= (nwio_ipconf_t *)ptr2acc_data(data);
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result= ip_setconf(psip_fd->pf_port->pp_ipdev, ipconfp);
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bf_afree(data);
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reply_thr_get(psip_fd, result, TRUE);
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break;
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case NWIOSPSIPOPT:
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data= (*psip_fd->pf_get_userdata)(psip_fd->pf_srfd, 0,
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sizeof(*psip_opt), TRUE);
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if (!data)
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{
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result= EFAULT;
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break;
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}
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data= bf_packIffLess(data, sizeof(*psip_opt));
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assert (data->acc_length == sizeof(*psip_opt));
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newoptp= (nwio_psipopt_t *)ptr2acc_data(data);
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result= psip_setopt(psip_fd, newoptp);
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bf_afree(data);
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if (result == NW_OK)
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{
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if (psip_fd->pf_psipopt.nwpo_flags & NWPO_EN_PROMISC)
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{
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psip_fd->pf_flags |= PFF_PROMISC;
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psip_fd->pf_port->pp_flags |= PPF_PROMISC;
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}
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else
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{
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psip_fd->pf_flags &= ~PFF_PROMISC;
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check_promisc(psip_fd->pf_port);
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}
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if (psip_fd->pf_psipopt.nwpo_flags & NWPO_EN_NEXTHOP)
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{
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psip_fd->pf_flags |= PFF_NEXTHOP;
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}
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else
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{
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psip_fd->pf_flags &= ~PFF_NEXTHOP;
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}
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}
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reply_thr_get(psip_fd, result, TRUE);
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break;
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case NWIOGPSIPOPT:
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data= bf_memreq(sizeof(*psip_opt));
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psip_opt= (nwio_psipopt_t *)ptr2acc_data(data);
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*psip_opt= psip_fd->pf_psipopt;
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result= (*psip_fd->pf_put_userdata)(psip_fd->pf_srfd, 0,
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data, TRUE);
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if (result == NW_OK)
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reply_thr_put(psip_fd, NW_OK, TRUE);
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break;
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default:
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reply_thr_put(psip_fd, ENOTTY, TRUE);
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break;
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}
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return NW_OK;
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}
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static int psip_read(fd, count)
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int fd;
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size_t count;
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{
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psip_port_t *psip_port;
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psip_fd_t *psip_fd;
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acc_t *pack;
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size_t buf_size;
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int result, result1;
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assert(fd >= 0 && fd < PSIP_FD_NR);
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psip_fd= &psip_fd_table[fd];
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psip_port= psip_fd->pf_port;
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if ((psip_fd->pf_flags & PFF_PROMISC) && psip_port->pp_promisc_head)
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{
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/* Deliver a queued packet. */
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pack= psip_port->pp_promisc_head;
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buf_size= bf_bufsize(pack);
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if (buf_size <= count)
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{
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psip_port->pp_promisc_head= pack->acc_ext_link;
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result= (*psip_fd->pf_put_userdata)(psip_fd->pf_srfd,
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(size_t)0, pack, FALSE);
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if (result == NW_OK)
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result= buf_size;
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}
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else
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result= EPACKSIZE;
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result1= (*psip_fd->pf_put_userdata)(psip_fd->pf_srfd,
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(size_t)result, NULL, FALSE);
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assert(result1 == NW_OK);
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return NW_OK;
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}
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psip_fd->pf_rd_count= count;
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if (psip_port->pp_rd_head == NULL)
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psip_port->pp_rd_head= psip_fd;
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else
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psip_port->pp_rd_tail->pf_rd_next= psip_fd;
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psip_fd->pf_rd_next= NULL;
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psip_port->pp_rd_tail= psip_fd;
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psip_fd->pf_flags |= PFF_READ_IP;
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if (!(psip_fd->pf_flags & PFF_PROMISC))
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ipps_get(psip_port->pp_ipdev);
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if (psip_fd->pf_flags & PFF_READ_IP)
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return NW_SUSPEND;
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return NW_OK;
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}
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static int psip_write(fd, count)
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int fd;
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size_t count;
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{
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psip_port_t *psip_port;
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psip_fd_t *psip_fd;
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acc_t *pack, *hdr_pack;
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psip_io_hdr_t *hdr;
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size_t pack_len;
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ipaddr_t nexthop;
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assert(fd >= 0 && fd < PSIP_FD_NR);
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psip_fd= &psip_fd_table[fd];
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psip_port= psip_fd->pf_port;
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pack= (*psip_fd->pf_get_userdata)(psip_fd->pf_srfd, (size_t)0,
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count, FALSE);
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if (pack == NULL)
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{
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pack= (*psip_fd->pf_get_userdata)(psip_fd->pf_srfd,
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(size_t)EFAULT, (size_t)0, FALSE);
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assert(pack == NULL);
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return NW_OK;
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}
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if (psip_fd->pf_flags & PFF_NEXTHOP)
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{
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pack_len= bf_bufsize(pack);
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if (pack_len <= sizeof(nexthop))
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{
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/* Something strange */
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bf_afree(pack); pack= NULL;
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pack= (*psip_fd->pf_get_userdata)(psip_fd->pf_srfd,
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(size_t)EPACKSIZE, (size_t)0, FALSE);
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assert(pack == NULL);
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return NW_OK;
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}
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pack= bf_packIffLess(pack, sizeof(nexthop));
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nexthop= *(ipaddr_t *)ptr2acc_data(pack);
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pack= bf_delhead(pack, sizeof(nexthop));
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/* Map multicast to broadcast */
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if ((nexthop & HTONL(0xE0000000)) == HTONL(0xE0000000))
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nexthop= HTONL(0xffffffff);
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}
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else
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{
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/* Assume point to point */
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nexthop= HTONL(0x00000000);
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}
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if (psip_port->pp_flags & PPF_PROMISC)
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{
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/* Deal with promiscuous mode. */
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hdr_pack= bf_memreq(sizeof(*hdr));
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hdr= (psip_io_hdr_t *)ptr2acc_data(hdr_pack);
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memset(hdr, '\0', sizeof(*hdr));
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hdr->pih_flags |= PF_REM2LOC;
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hdr->pih_nexthop= nexthop;
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pack->acc_linkC++;
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hdr_pack->acc_next= pack;
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hdr_pack->acc_ext_link= NULL;
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if (psip_port->pp_promisc_head)
|
|
{
|
|
/* Append at the end. */
|
|
psip_port->pp_promisc_tail->acc_ext_link= hdr_pack;
|
|
psip_port->pp_promisc_tail= hdr_pack;
|
|
}
|
|
else
|
|
{
|
|
/* First packet. */
|
|
psip_port->pp_promisc_head= hdr_pack;
|
|
psip_port->pp_promisc_tail= hdr_pack;
|
|
if (psip_port->pp_rd_head)
|
|
promisc_restart_read(psip_port);
|
|
}
|
|
}
|
|
ipps_put(psip_port->pp_ipdev, nexthop, pack);
|
|
pack= (*psip_fd->pf_get_userdata)(psip_fd->pf_srfd, (size_t)count,
|
|
(size_t)0, FALSE);
|
|
assert(pack == NULL);
|
|
return NW_OK;
|
|
}
|
|
|
|
static int psip_select(fd, operations)
|
|
int fd;
|
|
unsigned operations;
|
|
{
|
|
printf("psip_select: not implemented\n");
|
|
return 0;
|
|
}
|
|
|
|
static void psip_close(fd)
|
|
int fd;
|
|
{
|
|
psip_port_t *psip_port;
|
|
psip_fd_t *psip_fd;
|
|
|
|
assert(fd >= 0 && fd < PSIP_FD_NR);
|
|
psip_fd= &psip_fd_table[fd];
|
|
psip_port= psip_fd->pf_port;
|
|
|
|
if (psip_fd->pf_flags & PFF_PROMISC)
|
|
{
|
|
/* Check if the port should still be in promiscuous mode.
|
|
*/
|
|
psip_fd->pf_flags &= ~PFF_PROMISC;
|
|
check_promisc(psip_fd->pf_port);
|
|
}
|
|
|
|
assert(psip_port->pp_opencnt >0);
|
|
psip_port->pp_opencnt--;
|
|
psip_fd->pf_flags= PFF_EMPTY;
|
|
ipps_get(psip_port->pp_ipdev);
|
|
|
|
}
|
|
|
|
static int psip_cancel(fd, which_operation)
|
|
int fd;
|
|
int which_operation;
|
|
{
|
|
psip_port_t *psip_port;
|
|
psip_fd_t *psip_fd, *prev_fd, *tmp_fd;
|
|
int result;
|
|
|
|
DBLOCK(1, printf("psip_cancel(%d, %d)\n", fd, which_operation));
|
|
|
|
assert(fd >= 0 && fd < PSIP_FD_NR);
|
|
psip_fd= &psip_fd_table[fd];
|
|
psip_port= psip_fd->pf_port;
|
|
|
|
switch(which_operation)
|
|
{
|
|
case SR_CANCEL_IOCTL:
|
|
ip_panic(( "should not be here" ));
|
|
case SR_CANCEL_READ:
|
|
assert(psip_fd->pf_flags & PFF_READ_IP);
|
|
for (prev_fd= NULL, tmp_fd= psip_port->pp_rd_head; tmp_fd;
|
|
prev_fd= tmp_fd, tmp_fd= tmp_fd->pf_rd_next)
|
|
{
|
|
if (tmp_fd == psip_fd)
|
|
break;
|
|
}
|
|
if (tmp_fd == NULL)
|
|
ip_panic(( "unable to find to request to cancel" ));
|
|
if (prev_fd == NULL)
|
|
psip_port->pp_rd_head= psip_fd->pf_rd_next;
|
|
else
|
|
prev_fd->pf_rd_next= psip_fd->pf_rd_next;
|
|
if (psip_fd->pf_rd_next == NULL)
|
|
psip_port->pp_rd_tail= prev_fd;
|
|
psip_fd->pf_flags &= ~PFF_READ_IP;
|
|
result= (*psip_fd->pf_put_userdata)(psip_fd->pf_srfd,
|
|
(size_t)EINTR, NULL, FALSE);
|
|
assert(result == NW_OK);
|
|
break;
|
|
case SR_CANCEL_WRITE:
|
|
ip_panic(( "should not be here" ));
|
|
default:
|
|
ip_panic(( "invalid operation for cancel" ));
|
|
}
|
|
return NW_OK;
|
|
}
|
|
|
|
static void promisc_restart_read(psip_port)
|
|
psip_port_t *psip_port;
|
|
{
|
|
psip_fd_t *psip_fd, *prev, *next;
|
|
acc_t *pack;
|
|
size_t buf_size;
|
|
int result, result1;
|
|
|
|
/* Overkill at the moment: just one reader in promiscious mode is
|
|
* allowed.
|
|
*/
|
|
pack= psip_port->pp_promisc_head;
|
|
if (!pack)
|
|
return;
|
|
assert(pack->acc_ext_link == NULL);
|
|
|
|
for(psip_fd= psip_port->pp_rd_head, prev= NULL; psip_fd;
|
|
prev= psip_fd, psip_fd= psip_fd->pf_rd_next)
|
|
{
|
|
again:
|
|
if (!(psip_fd->pf_flags & PFF_PROMISC))
|
|
continue;
|
|
next= psip_fd->pf_rd_next;
|
|
if (prev)
|
|
prev->pf_rd_next= next;
|
|
else
|
|
psip_port->pp_rd_head= next;
|
|
if (!next)
|
|
psip_port->pp_rd_tail= prev;
|
|
|
|
assert(psip_fd->pf_flags & PFF_READ_IP);
|
|
psip_fd->pf_flags &= ~PFF_READ_IP;
|
|
|
|
buf_size= bf_bufsize(pack);
|
|
if (buf_size <= psip_fd->pf_rd_count)
|
|
{
|
|
psip_port->pp_promisc_head= pack->acc_ext_link;
|
|
result= (*psip_fd->pf_put_userdata)(psip_fd->pf_srfd,
|
|
(size_t)0, pack, FALSE);
|
|
if (result == NW_OK)
|
|
result= buf_size;
|
|
}
|
|
else
|
|
result= EPACKSIZE;
|
|
|
|
result1= (*psip_fd->pf_put_userdata)(psip_fd->pf_srfd,
|
|
(size_t)result, NULL, FALSE);
|
|
assert(result1 == NW_OK);
|
|
|
|
if (psip_port->pp_promisc_head)
|
|
{
|
|
/* Restart from the beginning */
|
|
assert(result == EPACKSIZE);
|
|
psip_fd= psip_port->pp_rd_head;
|
|
prev= NULL;
|
|
goto again;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int psip_setopt(psip_fd, newoptp)
|
|
psip_fd_t *psip_fd;
|
|
nwio_psipopt_t *newoptp;
|
|
{
|
|
nwio_psipopt_t oldopt;
|
|
unsigned int new_en_flags, new_di_flags, old_en_flags, old_di_flags;
|
|
unsigned long new_flags;
|
|
|
|
oldopt= psip_fd->pf_psipopt;
|
|
|
|
old_en_flags= oldopt.nwpo_flags & 0xffff;
|
|
old_di_flags= (oldopt.nwpo_flags >> 16) & 0xffff;
|
|
|
|
new_en_flags= newoptp->nwpo_flags & 0xffff;
|
|
new_di_flags= (newoptp->nwpo_flags >> 16) & 0xffff;
|
|
|
|
if (new_en_flags & new_di_flags)
|
|
return EBADMODE;
|
|
|
|
/* NWUO_LOCADDR_MASK */
|
|
if (!((new_en_flags | new_di_flags) & NWPO_PROMISC_MASK))
|
|
{
|
|
new_en_flags |= (old_en_flags & NWPO_PROMISC_MASK);
|
|
new_di_flags |= (old_di_flags & NWPO_PROMISC_MASK);
|
|
}
|
|
|
|
new_flags= ((unsigned long)new_di_flags << 16) | new_en_flags;
|
|
if ((new_flags & NWPO_EN_PROMISC) &&
|
|
(psip_fd->pf_port->pp_flags & PPF_PROMISC))
|
|
{
|
|
printf("psip_setopt: EBUSY for port %d, flags 0x%x\n",
|
|
psip_fd->pf_port - psip_port_table,
|
|
psip_fd->pf_port->pp_flags);
|
|
/* We can support only one at a time. */
|
|
return EBUSY;
|
|
}
|
|
|
|
psip_fd->pf_psipopt= *newoptp;
|
|
psip_fd->pf_psipopt.nwpo_flags= new_flags;
|
|
|
|
return NW_OK;
|
|
}
|
|
|
|
static void check_promisc(psip_port)
|
|
psip_port_t *psip_port;
|
|
{
|
|
int i;
|
|
psip_fd_t *psip_fd;
|
|
acc_t *acc, *acc_next;
|
|
|
|
/* Check if the port should still be in promiscuous mode. Overkill
|
|
* at the moment.
|
|
*/
|
|
if (!(psip_port->pp_flags & PPF_PROMISC))
|
|
return;
|
|
|
|
psip_port->pp_flags &= ~PPF_PROMISC;
|
|
for (i= 0, psip_fd= psip_fd_table; i<PSIP_FD_NR; i++, psip_fd++)
|
|
{
|
|
if ((psip_fd->pf_flags & (PFF_INUSE|PFF_PROMISC)) !=
|
|
(PFF_INUSE|PFF_PROMISC))
|
|
{
|
|
continue;
|
|
}
|
|
if (psip_fd->pf_port != psip_port)
|
|
continue;
|
|
printf("check_promisc: setting PROMISC for port %d\n",
|
|
psip_port-psip_port_table);
|
|
psip_port->pp_flags |= PPF_PROMISC;
|
|
break;
|
|
}
|
|
if (!(psip_port->pp_flags & PPF_PROMISC))
|
|
{
|
|
/* Delete queued packets. */
|
|
acc= psip_port->pp_promisc_head;
|
|
psip_port->pp_promisc_head= NULL;
|
|
while (acc)
|
|
{
|
|
acc_next= acc->acc_ext_link;
|
|
bf_afree(acc);
|
|
acc= acc_next;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void psip_buffree (priority)
|
|
int priority;
|
|
{
|
|
int i;
|
|
psip_port_t *psip_port;
|
|
acc_t *tmp_acc, *next_acc;
|
|
|
|
if (priority == PSIP_PRI_EXP_PROMISC)
|
|
{
|
|
for (i=0, psip_port= psip_port_table; i<psip_conf_nr;
|
|
i++, psip_port++)
|
|
{
|
|
if (!(psip_port->pp_flags & PPF_CONFIGURED) )
|
|
continue;
|
|
if (psip_port->pp_promisc_head)
|
|
{
|
|
tmp_acc= psip_port->pp_promisc_head;
|
|
while(tmp_acc)
|
|
{
|
|
next_acc= tmp_acc->acc_ext_link;
|
|
bf_afree(tmp_acc);
|
|
tmp_acc= next_acc;
|
|
}
|
|
psip_port->pp_promisc_head= NULL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef BUF_CONSISTENCY_CHECK
|
|
static void psip_bufcheck()
|
|
{
|
|
int i;
|
|
psip_port_t *psip_port;
|
|
acc_t *tmp_acc;
|
|
|
|
for (i= 0, psip_port= psip_port_table; i<psip_conf_nr;
|
|
i++, psip_port++)
|
|
{
|
|
for (tmp_acc= psip_port->pp_promisc_head; tmp_acc;
|
|
tmp_acc= tmp_acc->acc_ext_link)
|
|
{
|
|
bf_check_acc(tmp_acc);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
reply_thr_put
|
|
*/
|
|
|
|
static void reply_thr_put(psip_fd, reply, for_ioctl)
|
|
psip_fd_t *psip_fd;
|
|
int reply;
|
|
int for_ioctl;
|
|
{
|
|
int result;
|
|
|
|
result= (*psip_fd->pf_put_userdata)(psip_fd->pf_srfd, reply,
|
|
(acc_t *)0, for_ioctl);
|
|
assert(result == NW_OK);
|
|
}
|
|
|
|
/*
|
|
reply_thr_get
|
|
*/
|
|
|
|
static void reply_thr_get(psip_fd, reply, for_ioctl)
|
|
psip_fd_t *psip_fd;
|
|
int reply;
|
|
int for_ioctl;
|
|
{
|
|
acc_t *result;
|
|
result= (*psip_fd->pf_get_userdata)(psip_fd->pf_srfd, reply,
|
|
(size_t)0, for_ioctl);
|
|
assert (!result);
|
|
}
|
|
|
|
|
|
/*
|
|
* $PchId: psip.c,v 1.15 2005/06/28 14:19:29 philip Exp $
|
|
*/
|