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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2007-11-10 19:00:53 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2007-11-10 19:00:53 +0000
commited261aac7dd5c71351f720ab16a12b5bd8c1073b (patch)
treedbe4bee46c2ad4388d4b86fc720c94a461edb4ff /package/broadcom-wl/src/kmod/bcmutils.c
parent46d61531218d6313175cdbaead9df078e1cf7cba (diff)
move wlcompat to the broadcom-wl package
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9528 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/broadcom-wl/src/kmod/bcmutils.c')
-rw-r--r--package/broadcom-wl/src/kmod/bcmutils.c873
1 files changed, 0 insertions, 873 deletions
diff --git a/package/broadcom-wl/src/kmod/bcmutils.c b/package/broadcom-wl/src/kmod/bcmutils.c
deleted file mode 100644
index 7592f230a..000000000
--- a/package/broadcom-wl/src/kmod/bcmutils.c
+++ /dev/null
@@ -1,873 +0,0 @@
-/*
- * Misc useful OS-independent routines.
- *
- * Copyright 2006, Broadcom Corporation
- * All Rights Reserved.
- *
- * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
- * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
- * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
- * $Id: bcmutils.c,v 1.1.1.12 2006/02/27 03:43:16 honor Exp $
- */
-
-#include <typedefs.h>
-#include <bcmdefs.h>
-#include <stdarg.h>
-#include <osl.h>
-#include "linux_osl.h"
-#include "pktq.h"
-#include <bcmutils.h>
-#include <sbutils.h>
-#include <bcmnvram.h>
-#include <bcmendian.h>
-#include <bcmdevs.h>
-#include "bcmip.h"
-
-#define ETHER_TYPE_8021Q 0x8100
-#define ETHER_TYPE_IP 0x0800
-#define VLAN_PRI_SHIFT 13
-#define VLAN_PRI_MASK 7
-
-
-struct ether_header {
- uint8 ether_dhost[6];
- uint8 ether_shost[6];
- uint16 ether_type;
-} __attribute__((packed));
-
-
-struct ethervlan_header {
- uint8 ether_dhost[6];
- uint8 ether_shost[6];
- uint16 vlan_type; /* 0x8100 */
- uint16 vlan_tag; /* priority, cfi and vid */
- uint16 ether_type;
-};
-
-/* copy a pkt buffer chain into a buffer */
-uint
-pktcopy(osl_t *osh, void *p, uint offset, int len, uchar *buf)
-{
- uint n, ret = 0;
-
- if (len < 0)
- len = 4096; /* "infinite" */
-
- /* skip 'offset' bytes */
- for (; p && offset; p = PKTNEXT(osh, p)) {
- if (offset < (uint)PKTLEN(osh, p))
- break;
- offset -= PKTLEN(osh, p);
- }
-
- if (!p)
- return 0;
-
- /* copy the data */
- for (; p && len; p = PKTNEXT(osh, p)) {
- n = MIN((uint)PKTLEN(osh, p) - offset, (uint)len);
- bcopy(PKTDATA(osh, p) + offset, buf, n);
- buf += n;
- len -= n;
- ret += n;
- offset = 0;
- }
-
- return ret;
-}
-
-/* return total length of buffer chain */
-uint
-pkttotlen(osl_t *osh, void *p)
-{
- uint total;
-
- total = 0;
- for (; p; p = PKTNEXT(osh, p))
- total += PKTLEN(osh, p);
- return (total);
-}
-
-/* return the last buffer of chained pkt */
-void *
-pktlast(osl_t *osh, void *p)
-{
- for (; PKTNEXT(osh, p); p = PKTNEXT(osh, p))
- ;
-
- return (p);
-}
-
-
-/*
- * osl multiple-precedence packet queue
- * hi_prec is always >= the number of the highest non-empty queue
- */
-void *
-pktq_penq(struct pktq *pq, int prec, void *p)
-{
- struct pktq_prec *q;
-
- ASSERT(prec >= 0 && prec < pq->num_prec);
- ASSERT(PKTLINK(p) == NULL); /* queueing chains not allowed */
-
- ASSERT(!pktq_full(pq));
- ASSERT(!pktq_pfull(pq, prec));
-
- q = &pq->q[prec];
-
- if (q->head)
- PKTSETLINK(q->tail, p);
- else
- q->head = p;
-
- q->tail = p;
- q->len++;
-
- pq->len++;
-
- if (pq->hi_prec < prec)
- pq->hi_prec = (uint8)prec;
-
- return p;
-}
-
-void *
-pktq_penq_head(struct pktq *pq, int prec, void *p)
-{
- struct pktq_prec *q;
-
- ASSERT(prec >= 0 && prec < pq->num_prec);
- ASSERT(PKTLINK(p) == NULL); /* queueing chains not allowed */
-
- ASSERT(!pktq_full(pq));
- ASSERT(!pktq_pfull(pq, prec));
-
- q = &pq->q[prec];
-
- if (q->head == NULL)
- q->tail = p;
-
- PKTSETLINK(p, q->head);
- q->head = p;
- q->len++;
-
- pq->len++;
-
- if (pq->hi_prec < prec)
- pq->hi_prec = (uint8)prec;
-
- return p;
-}
-
-void *
-pktq_pdeq(struct pktq *pq, int prec)
-{
- struct pktq_prec *q;
- void *p;
-
- ASSERT(prec >= 0 && prec < pq->num_prec);
-
- q = &pq->q[prec];
-
- if ((p = q->head) == NULL)
- return NULL;
-
- if ((q->head = PKTLINK(p)) == NULL)
- q->tail = NULL;
-
- q->len--;
-
- pq->len--;
-
- PKTSETLINK(p, NULL);
-
- return p;
-}
-
-void *
-pktq_pdeq_tail(struct pktq *pq, int prec)
-{
- struct pktq_prec *q;
- void *p, *prev;
-
- ASSERT(prec >= 0 && prec < pq->num_prec);
-
- q = &pq->q[prec];
-
- if ((p = q->head) == NULL)
- return NULL;
-
- for (prev = NULL; p != q->tail; p = PKTLINK(p))
- prev = p;
-
- if (prev)
- PKTSETLINK(prev, NULL);
- else
- q->head = NULL;
-
- q->tail = prev;
- q->len--;
-
- pq->len--;
-
- return p;
-}
-
-void
-pktq_pflush(osl_t *osh, struct pktq *pq, int prec, bool dir)
-{
- struct pktq_prec *q;
- void *p;
-
- q = &pq->q[prec];
- p = q->head;
- while (p) {
- q->head = PKTLINK(p);
- PKTSETLINK(p, NULL);
- PKTFREE(osh, p, dir);
- q->len--;
- pq->len--;
- p = q->head;
- }
- ASSERT(q->len == 0);
- q->tail = NULL;
-}
-
-bool
-pktq_pdel(struct pktq *pq, void *pktbuf, int prec)
-{
- struct pktq_prec *q;
- void *p;
-
- ASSERT(prec >= 0 && prec < pq->num_prec);
-
- if (!pktbuf)
- return FALSE;
-
- q = &pq->q[prec];
-
- if (q->head == pktbuf) {
- if ((q->head = PKTLINK(pktbuf)) == NULL)
- q->tail = NULL;
- } else {
- for (p = q->head; p && PKTLINK(p) != pktbuf; p = PKTLINK(p))
- ;
- if (p == NULL)
- return FALSE;
-
- PKTSETLINK(p, PKTLINK(pktbuf));
- if (q->tail == pktbuf)
- q->tail = p;
- }
-
- q->len--;
- pq->len--;
- PKTSETLINK(pktbuf, NULL);
- return TRUE;
-}
-
-void
-pktq_init(struct pktq *pq, int num_prec, int max_len)
-{
- int prec;
-
- ASSERT(num_prec > 0 && num_prec <= PKTQ_MAX_PREC);
-
- bzero(pq, sizeof(*pq));
-
- pq->num_prec = (uint16)num_prec;
-
- pq->max = (uint16)max_len;
-
- for (prec = 0; prec < num_prec; prec++)
- pq->q[prec].max = pq->max;
-}
-
-void *
-pktq_deq(struct pktq *pq, int *prec_out)
-{
- struct pktq_prec *q;
- void *p;
- int prec;
-
- if (pq->len == 0)
- return NULL;
-
- while ((prec = pq->hi_prec) > 0 && pq->q[prec].head == NULL)
- pq->hi_prec--;
-
- q = &pq->q[prec];
-
- if ((p = q->head) == NULL)
- return NULL;
-
- if ((q->head = PKTLINK(p)) == NULL)
- q->tail = NULL;
-
- q->len--;
-
- pq->len--;
-
- if (prec_out)
- *prec_out = prec;
-
- PKTSETLINK(p, NULL);
-
- return p;
-}
-
-void *
-pktq_deq_tail(struct pktq *pq, int *prec_out)
-{
- struct pktq_prec *q;
- void *p, *prev;
- int prec;
-
- if (pq->len == 0)
- return NULL;
-
- for (prec = 0; prec < pq->hi_prec; prec++)
- if (pq->q[prec].head)
- break;
-
- q = &pq->q[prec];
-
- if ((p = q->head) == NULL)
- return NULL;
-
- for (prev = NULL; p != q->tail; p = PKTLINK(p))
- prev = p;
-
- if (prev)
- PKTSETLINK(prev, NULL);
- else
- q->head = NULL;
-
- q->tail = prev;
- q->len--;
-
- pq->len--;
-
- if (prec_out)
- *prec_out = prec;
-
- PKTSETLINK(p, NULL);
-
- return p;
-}
-
-void *
-pktq_peek(struct pktq *pq, int *prec_out)
-{
- int prec;
-
- if (pq->len == 0)
- return NULL;
-
- while ((prec = pq->hi_prec) > 0 && pq->q[prec].head == NULL)
- pq->hi_prec--;
-
- if (prec_out)
- *prec_out = prec;
-
- return (pq->q[prec].head);
-}
-
-void *
-pktq_peek_tail(struct pktq *pq, int *prec_out)
-{
- int prec;
-
- if (pq->len == 0)
- return NULL;
-
- for (prec = 0; prec < pq->hi_prec; prec++)
- if (pq->q[prec].head)
- break;
-
- if (prec_out)
- *prec_out = prec;
-
- return (pq->q[prec].tail);
-}
-
-void
-pktq_flush(osl_t *osh, struct pktq *pq, bool dir)
-{
- int prec;
- for (prec = 0; prec < pq->num_prec; prec++)
- pktq_pflush(osh, pq, prec, dir);
- ASSERT(pq->len == 0);
-}
-
-/* Return sum of lengths of a specific set of precedences */
-int
-pktq_mlen(struct pktq *pq, uint prec_bmp)
-{
- int prec, len;
-
- len = 0;
-
- for (prec = 0; prec <= pq->hi_prec; prec++)
- if (prec_bmp & (1 << prec))
- len += pq->q[prec].len;
-
- return len;
-}
-
-/* Priority dequeue from a specific set of precedences */
-void *
-pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out)
-{
- struct pktq_prec *q;
- void *p;
- int prec;
-
- if (pq->len == 0)
- return NULL;
-
- while ((prec = pq->hi_prec) > 0 && pq->q[prec].head == NULL)
- pq->hi_prec--;
-
- while ((prec_bmp & (1 << prec)) == 0 || pq->q[prec].head == NULL)
- if (prec-- == 0)
- return NULL;
-
- q = &pq->q[prec];
-
- if ((p = q->head) == NULL)
- return NULL;
-
- if ((q->head = PKTLINK(p)) == NULL)
- q->tail = NULL;
-
- q->len--;
-
- if (prec_out)
- *prec_out = prec;
-
- pq->len--;
-
- PKTSETLINK(p, NULL);
-
- return p;
-}
-
-char*
-bcmstrcat(char *dest, const char *src)
-{
- strcpy(&dest[strlen(dest)], src);
- return (dest);
-}
-
-char*
-bcm_ether_ntoa(struct ether_addr *ea, char *buf)
-{
- sprintf(buf, "%02x:%02x:%02x:%02x:%02x:%02x",
- ea->octet[0]&0xff, ea->octet[1]&0xff, ea->octet[2]&0xff,
- ea->octet[3]&0xff, ea->octet[4]&0xff, ea->octet[5]&0xff);
- return (buf);
-}
-
-/* parse a xx:xx:xx:xx:xx:xx format ethernet address */
-int
-bcm_ether_atoe(char *p, struct ether_addr *ea)
-{
- int i = 0;
-
- for (;;) {
- ea->octet[i++] = (char) bcm_strtoul(p, &p, 16);
- if (!*p++ || i == 6)
- break;
- }
-
- return (i == 6);
-}
-
-/* Takes an Ethernet frame and sets out-of-bound PKTPRIO
- * Also updates the inplace vlan tag if requested
- */
-void
-pktsetprio(void *pkt, bool update_vtag)
-{
- struct ether_header *eh;
- struct ethervlan_header *evh;
- uint8 *pktdata;
- int priority = 0;
-
- pktdata = (uint8 *) PKTDATA(NULL, pkt);
- ASSERT(ISALIGNED((uintptr)pktdata, sizeof(uint16)));
-
- eh = (struct ether_header *) pktdata;
-
- if (ntoh16(eh->ether_type) == ETHER_TYPE_8021Q) {
- uint16 vlan_tag;
- int vlan_prio, dscp_prio = 0;
-
- evh = (struct ethervlan_header *)eh;
-
- vlan_tag = ntoh16(evh->vlan_tag);
- vlan_prio = (int) (vlan_tag >> VLAN_PRI_SHIFT) & VLAN_PRI_MASK;
-
- if (ntoh16(evh->ether_type) == ETHER_TYPE_IP) {
- uint8 *ip_body = pktdata + sizeof(struct ethervlan_header);
- uint8 tos_tc = IP_TOS(ip_body);
- dscp_prio = (int)(tos_tc >> IPV4_TOS_PREC_SHIFT);
- }
-
- /* DSCP priority gets precedence over 802.1P (vlan tag) */
- priority = (dscp_prio != 0) ? dscp_prio : vlan_prio;
-
- /*
- * If the DSCP priority is not the same as the VLAN priority,
- * then overwrite the priority field in the vlan tag, with the
- * DSCP priority value. This is required for Linux APs because
- * the VLAN driver on Linux, overwrites the skb->priority field
- * with the priority value in the vlan tag
- */
- if (update_vtag && (priority != vlan_prio)) {
- vlan_tag &= ~(VLAN_PRI_MASK << VLAN_PRI_SHIFT);
- vlan_tag |= (uint16)priority << VLAN_PRI_SHIFT;
- evh->vlan_tag = hton16(vlan_tag);
- }
- } else if (ntoh16(eh->ether_type) == ETHER_TYPE_IP) {
- uint8 *ip_body = pktdata + sizeof(struct ether_header);
- uint8 tos_tc = IP_TOS(ip_body);
- priority = (int)(tos_tc >> IPV4_TOS_PREC_SHIFT);
- }
-
- ASSERT(priority >= 0 && priority <= MAXPRIO);
- PKTSETPRIO(pkt, priority);
-}
-
-static char bcm_undeferrstr[BCME_STRLEN];
-
-static const char *bcmerrorstrtable[] = BCMERRSTRINGTABLE;
-
-/* Convert the Error codes into related Error strings */
-const char *
-bcmerrorstr(int bcmerror)
-{
- int abs_bcmerror;
-
- abs_bcmerror = ABS(bcmerror);
-
- /* check if someone added a bcmerror code but forgot to add errorstring */
- ASSERT(ABS(BCME_LAST) == (ARRAYSIZE(bcmerrorstrtable) - 1));
- if ((bcmerror > 0) || (abs_bcmerror > ABS(BCME_LAST))) {
- sprintf(bcm_undeferrstr, "undefined Error %d", bcmerror);
- return bcm_undeferrstr;
- }
-
- ASSERT((strlen((char*)bcmerrorstrtable[abs_bcmerror])) < BCME_STRLEN);
-
- return bcmerrorstrtable[abs_bcmerror];
-}
-
-
-int
-bcm_iovar_lencheck(const bcm_iovar_t *vi, void *arg, int len, bool set)
-{
- int bcmerror = 0;
-
- /* length check on io buf */
- switch (vi->type) {
- case IOVT_BOOL:
- case IOVT_INT8:
- case IOVT_INT16:
- case IOVT_INT32:
- case IOVT_UINT8:
- case IOVT_UINT16:
- case IOVT_UINT32:
- /* all integers are int32 sized args at the ioctl interface */
- if (len < (int)sizeof(int)) {
- bcmerror = BCME_BUFTOOSHORT;
- }
- break;
-
- case IOVT_BUFFER:
- /* buffer must meet minimum length requirement */
- if (len < vi->minlen) {
- bcmerror = BCME_BUFTOOSHORT;
- }
- break;
-
- case IOVT_VOID:
- if (!set) {
- /* Cannot return nil... */
- bcmerror = BCME_UNSUPPORTED;
- } else if (len) {
- /* Set is an action w/o parameters */
- bcmerror = BCME_BUFTOOLONG;
- }
- break;
-
- default:
- /* unknown type for length check in iovar info */
- ASSERT(0);
- bcmerror = BCME_UNSUPPORTED;
- }
-
- return bcmerror;
-}
-
-#define CRC_INNER_LOOP(n, c, x) \
- (c) = ((c) >> 8) ^ crc##n##_table[((c) ^ (x)) & 0xff]
-
-static uint32 crc32_table[256] = {
- 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA,
- 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
- 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
- 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
- 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
- 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
- 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
- 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
- 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
- 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
- 0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
- 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
- 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
- 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
- 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
- 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
- 0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
- 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
- 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
- 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
- 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
- 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
- 0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
- 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
- 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
- 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
- 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
- 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
- 0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
- 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
- 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
- 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
- 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
- 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
- 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
- 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
- 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
- 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
- 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
- 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
- 0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
- 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
- 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
- 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
- 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
- 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
- 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
- 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
- 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
- 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
- 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
- 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
- 0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
- 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
- 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
- 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
- 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
- 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
- 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
- 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
- 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
- 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
- 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
- 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
-};
-
-uint32
-hndcrc32(
- uint8 *pdata, /* pointer to array of data to process */
- uint nbytes, /* number of input data bytes to process */
- uint32 crc /* either CRC32_INIT_VALUE or previous return value */
-)
-{
- uint8 *pend;
-#ifdef __mips__
- uint8 tmp[4];
- ulong *tptr = (ulong *)tmp;
-
- /* in case the beginning of the buffer isn't aligned */
- pend = (uint8 *)((uint)(pdata + 3) & 0xfffffffc);
- nbytes -= (pend - pdata);
- while (pdata < pend)
- CRC_INNER_LOOP(32, crc, *pdata++);
-
- /* handle bulk of data as 32-bit words */
- pend = pdata + (nbytes & 0xfffffffc);
- while (pdata < pend) {
- *tptr = *(ulong *)pdata;
- pdata += sizeof(ulong *);
- CRC_INNER_LOOP(32, crc, tmp[0]);
- CRC_INNER_LOOP(32, crc, tmp[1]);
- CRC_INNER_LOOP(32, crc, tmp[2]);
- CRC_INNER_LOOP(32, crc, tmp[3]);
- }
-
- /* 1-3 bytes at end of buffer */
- pend = pdata + (nbytes & 0x03);
- while (pdata < pend)
- CRC_INNER_LOOP(32, crc, *pdata++);
-#else
- pend = pdata + nbytes;
- while (pdata < pend)
- CRC_INNER_LOOP(32, crc, *pdata++);
-#endif /* __mips__ */
-
- return crc;
-}
-
-
-/*
- * Advance from the current 1-byte tag/1-byte length/variable-length value
- * triple, to the next, returning a pointer to the next.
- * If the current or next TLV is invalid (does not fit in given buffer length),
- * NULL is returned.
- * *buflen is not modified if the TLV elt parameter is invalid, or is decremented
- * by the TLV paramter's length if it is valid.
- */
-bcm_tlv_t *
-bcm_next_tlv(bcm_tlv_t *elt, int *buflen)
-{
- int len;
-
- /* validate current elt */
- if (!bcm_valid_tlv(elt, *buflen))
- return NULL;
-
- /* advance to next elt */
- len = elt->len;
- elt = (bcm_tlv_t*)(elt->data + len);
- *buflen -= (2 + len);
-
- /* validate next elt */
- if (!bcm_valid_tlv(elt, *buflen))
- return NULL;
-
- return elt;
-}
-
-/*
- * Traverse a string of 1-byte tag/1-byte length/variable-length value
- * triples, returning a pointer to the substring whose first element
- * matches tag
- */
-bcm_tlv_t *
-bcm_parse_tlvs(void *buf, int buflen, uint key)
-{
- bcm_tlv_t *elt;
- int totlen;
-
- elt = (bcm_tlv_t*)buf;
- totlen = buflen;
-
- /* find tagged parameter */
- while (totlen >= 2) {
- int len = elt->len;
-
- /* validate remaining totlen */
- if ((elt->id == key) && (totlen >= (len + 2)))
- return (elt);
-
- elt = (bcm_tlv_t*)((uint8*)elt + (len + 2));
- totlen -= (len + 2);
- }
-
- return NULL;
-}
-
-/*
- * Traverse a string of 1-byte tag/1-byte length/variable-length value
- * triples, returning a pointer to the substring whose first element
- * matches tag. Stop parsing when we see an element whose ID is greater
- * than the target key.
- */
-bcm_tlv_t *
-bcm_parse_ordered_tlvs(void *buf, int buflen, uint key)
-{
- bcm_tlv_t *elt;
- int totlen;
-
- elt = (bcm_tlv_t*)buf;
- totlen = buflen;
-
- /* find tagged parameter */
- while (totlen >= 2) {
- uint id = elt->id;
- int len = elt->len;
-
- /* Punt if we start seeing IDs > than target key */
- if (id > key)
- return (NULL);
-
- /* validate remaining totlen */
- if ((id == key) && (totlen >= (len + 2)))
- return (elt);
-
- elt = (bcm_tlv_t*)((uint8*)elt + (len + 2));
- totlen -= (len + 2);
- }
- return NULL;
-}
-
-
-/* Initialization of bcmstrbuf structure */
-void
-bcm_binit(struct bcmstrbuf *b, char *buf, uint size)
-{
- b->origsize = b->size = size;
- b->origbuf = b->buf = buf;
-}
-
-/* Buffer sprintf wrapper to guard against buffer overflow */
-int
-bcm_bprintf(struct bcmstrbuf *b, const char *fmt, ...)
-{
- va_list ap;
- int r;
-
- va_start(ap, fmt);
- r = vsnprintf(b->buf, b->size, fmt, ap);
-
- /* Non Ansi C99 compliant returns -1,
- * Ansi compliant return r >= b->size,
- * bcmstdlib returns 0, handle all
- */
- if ((r == -1) || (r >= (int)b->size) || (r == 0))
- {
- b->size = 0;
- }
- else
- {
- b->size -= r;
- b->buf += r;
- }
-
- va_end(ap);
-
- return r;
-}
-
-uint
-bcm_bitcount(uint8 *bitmap, uint length)
-{
- uint bitcount = 0, i;
- uint8 tmp;
- for (i = 0; i < length; i++) {
- tmp = bitmap[i];
- while (tmp) {
- bitcount++;
- tmp &= (tmp - 1);
- }
- }
- return bitcount;
-}
-