s32 brcmf_fil_iovar_data_get(struct brcmf_if *ifp, char *name, void *data, u32 len) { struct brcmf_pub *drvr = ifp->drvr; s32 err; u32 buflen; mutex_lock(&drvr->proto_block); buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf, sizeof(drvr->proto_buf)); if (buflen) { err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf, buflen, false); if (err == 0) memcpy(data, drvr->proto_buf, len); } else { err = -EPERM; brcmf_err("Creating iovar failed\n"); } brcmf_dbg(FIL, "name=%s, len=%d\n", name, len); brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n"); mutex_unlock(&drvr->proto_block); return err; }
s32 brcmf_fil_iovar_data_set(struct brcmf_if *ifp, char *name, const void *data, u32 len) { struct brcmf_pub *drvr = ifp->drvr; s32 err; u32 buflen; mutex_lock(&drvr->proto_block); brcmf_dbg(FIL, "ifidx=%d, name=%s, len=%d\n", ifp->ifidx, name, len); brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n"); buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf, sizeof(drvr->proto_buf)); if (buflen) { err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf, buflen, true); } else { err = -EPERM; bphy_err(drvr, "Creating iovar failed\n"); } mutex_unlock(&drvr->proto_block); return err; }
static u32 brcmf_create_bsscfg(s32 bssidx, char *name, char *data, u32 datalen, char *buf, u32 buflen) { const s8 *prefix = "bsscfg:"; s8 *p; u32 prefixlen; u32 namelen; u32 iolen; __le32 bssidx_le; if (bssidx == 0) return brcmf_create_iovar(name, data, datalen, buf, buflen); prefixlen = strlen(prefix); namelen = strlen(name) + 1; /* lengh of iovar name + null */ iolen = prefixlen + namelen + sizeof(bssidx_le) + datalen; if (buflen < iolen) { brcmf_err("buffer is too short\n"); return 0; } p = buf; /* copy prefix, no null */ memcpy(p, prefix, prefixlen); p += prefixlen; /* copy iovar name including null */ memcpy(p, name, namelen); p += namelen; /* bss config index as first data */ bssidx_le = cpu_to_le32(bssidx); memcpy(p, &bssidx_le, sizeof(bssidx_le)); p += sizeof(bssidx_le); /* parameter buffer follows */ if (datalen) memcpy(p, data, datalen); return iolen; }