| if_ed.c (17416) | if_ed.c (17455) |
|---|---|
| 1/* 2 * Copyright (c) 1995, David Greenman 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 10 unchanged lines hidden (view full) --- 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * | 1/* 2 * Copyright (c) 1995, David Greenman 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 10 unchanged lines hidden (view full) --- 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * |
| 27 * $Id: if_ed.c,v 1.101 1996/06/25 20:30:05 bde Exp $ | 27 * $Id: if_ed.c,v 1.102 1996/08/04 10:57:29 phk Exp $ |
| 28 */ 29 30/* 31 * Device driver for National Semiconductor DS8390/WD83C690 based ethernet 32 * adapters. By David Greenman, 29-April-1993 33 * 34 * Currently supports the Western Digital/SMC 8003 and 8013 series, 35 * the SMC Elite Ultra (8216), the 3Com 3c503, the NE1000 and NE2000, --- 284 unchanged lines hidden (view full) --- 320 IRQ3, 321 IRQ5, 322 IRQ7, 323 IRQ10, 324 IRQ11, 325 IRQ15 326}; 327 | 28 */ 29 30/* 31 * Device driver for National Semiconductor DS8390/WD83C690 based ethernet 32 * adapters. By David Greenman, 29-April-1993 33 * 34 * Currently supports the Western Digital/SMC 8003 and 8013 series, 35 * the SMC Elite Ultra (8216), the 3Com 3c503, the NE1000 and NE2000, --- 284 unchanged lines hidden (view full) --- 320 IRQ3, 321 IRQ5, 322 IRQ7, 323 IRQ10, 324 IRQ11, 325 IRQ15 326}; 327 |
| 328#define ETHER_MIN_LEN 60 329#define ETHER_MAX_LEN 1514 330#define ETHER_ADDR_LEN 6 331#define ETHER_HDR_SIZE 14 332 | |
| 333static struct kern_devconf kdc_ed_template = { 334 0, 0, 0, /* filled in by dev_attach */ 335 "ed", 0, { MDDT_ISA, 0, "net" }, 336 isa_generic_externalize, 0, 0, ISA_EXTERNALLEN, 337 &kdc_isa0, /* parent */ 338 0, /* parentdata */ 339 DC_UNCONFIGURED, /* state */ 340 "", /* description */ --- 1598 unchanged lines hidden (view full) --- 1939 } 1940 } 1941 } else { 1942 len = ed_pio_write_mbufs(sc, m, (int)buffer); 1943 if (len == 0) 1944 goto outloop; 1945 } 1946 | 328static struct kern_devconf kdc_ed_template = { 329 0, 0, 0, /* filled in by dev_attach */ 330 "ed", 0, { MDDT_ISA, 0, "net" }, 331 isa_generic_externalize, 0, 0, ISA_EXTERNALLEN, 332 &kdc_isa0, /* parent */ 333 0, /* parentdata */ 334 DC_UNCONFIGURED, /* state */ 335 "", /* description */ --- 1598 unchanged lines hidden (view full) --- 1934 } 1935 } 1936 } else { 1937 len = ed_pio_write_mbufs(sc, m, (int)buffer); 1938 if (len == 0) 1939 goto outloop; 1940 } 1941 |
| 1947 sc->txb_len[sc->txb_new] = max(len, ETHER_MIN_LEN); | 1942 sc->txb_len[sc->txb_new] = max(len, (ETHER_MIN_LEN-ETHER_CRC_LEN)); |
| 1948 1949 sc->txb_inuse++; 1950 1951 /* 1952 * Point to next buffer slot and wrap if necessary. 1953 */ 1954 sc->txb_new++; 1955 if (sc->txb_new == sc->txb_cnt) --- 59 unchanged lines hidden (view full) --- 2015 * the NIC. 2016 */ 2017 if (sc->mem_shared) 2018 packet_hdr = *(struct ed_ring *) packet_ptr; 2019 else 2020 ed_pio_readmem(sc, (int)packet_ptr, (char *) &packet_hdr, 2021 sizeof(packet_hdr)); 2022 len = packet_hdr.count; | 1943 1944 sc->txb_inuse++; 1945 1946 /* 1947 * Point to next buffer slot and wrap if necessary. 1948 */ 1949 sc->txb_new++; 1950 if (sc->txb_new == sc->txb_cnt) --- 59 unchanged lines hidden (view full) --- 2010 * the NIC. 2011 */ 2012 if (sc->mem_shared) 2013 packet_hdr = *(struct ed_ring *) packet_ptr; 2014 else 2015 ed_pio_readmem(sc, (int)packet_ptr, (char *) &packet_hdr, 2016 sizeof(packet_hdr)); 2017 len = packet_hdr.count; |
| 2023 if (len > (ETHER_MAX_LEN + sizeof(struct ed_ring)) || 2024 len < (ETHER_HDR_SIZE + sizeof(struct ed_ring))) { | 2018 if (len > (ETHER_MAX_LEN - ETHER_CRC_LEN + sizeof(struct ed_ring)) || 2019 len < (ETHER_MIN_LEN - ETHER_CRC_LEN + sizeof(struct ed_ring))) { |
| 2025 /* 2026 * Length is a wild value. There's a good chance that 2027 * this was caused by the NIC being old and buggy. 2028 * The bug is that the length low byte is duplicated in 2029 * the high byte. Try to recalculate the length based on 2030 * the pointer to the next packet. 2031 */ 2032 /* --- 841 unchanged lines hidden --- | 2020 /* 2021 * Length is a wild value. There's a good chance that 2022 * this was caused by the NIC being old and buggy. 2023 * The bug is that the length low byte is duplicated in 2024 * the high byte. Try to recalculate the length based on 2025 * the pointer to the next packet. 2026 */ 2027 /* --- 841 unchanged lines hidden --- |