/* Simple code to turn various tables in an ELF file into alias definitions. * This deals with kernel datastructures where they should be * dealt with: in the kernel source. * * Copyright 2002-2003 Rusty Russell, IBM Corporation * 2003 Kai Germaschewski * * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. */ #include "modpost.h" /* We use the ELF typedefs for kernel_ulong_t but bite the bullet and * use either stdint.h or inttypes.h for the rest. */ #if KERNEL_ELFCLASS == ELFCLASS32 typedef Elf32_Addr kernel_ulong_t; #define BITS_PER_LONG 32 #else typedef Elf64_Addr kernel_ulong_t; #define BITS_PER_LONG 64 #endif #ifdef __sun__ #include #else #include #endif #include typedef uint32_t __u32; typedef uint16_t __u16; typedef unsigned char __u8; /* Big exception to the "don't include kernel headers into userspace, which * even potentially has different endianness and word sizes, since * we handle those differences explicitly below */ #include "../../include/linux/mod_devicetable.h" #define ADD(str, sep, cond, field) \ do { \ strcat(str, sep); \ if (cond) \ sprintf(str + strlen(str), \ sizeof(field) == 1 ? "%02X" : \ sizeof(field) == 2 ? "%04X" : \ sizeof(field) == 4 ? "%08X" : "", \ field); \ else \ sprintf(str + strlen(str), "*"); \ } while(0) /* Always end in a wildcard, for future extension */ static inline void add_wildcard(char *str) { int len = strlen(str); if (str[len - 1] != '*') strcat(str + len, "*"); } unsigned int cross_build = 0; /** * Check that sizeof(device_id type) are consistent with size of section * in .o file. If in-consistent then userspace and kernel does not agree * on actual size which is a bug. * Also verify that the final entry in the table is all zeros. * Ignore both checks if build host differ from target host and size differs. **/ static void device_id_check(const char *modname, const char *device_id, unsigned long size, unsigned long id_size, void *symval) { int i; if (size % id_size || size < id_size) { if (cross_build != 0) return; fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo " "of the size of section __mod_%s_device_table=%lu.\n" "Fix definition of struct %s_device_id " "in mod_devicetable.h\n", modname, device_id, id_size, device_id, size, device_id); } /* Verify last one is a terminator */ for (i = 0; i < id_size; i++ ) { if (*(uint8_t*)(symval+size-id_size+i)) { fprintf(stderr,"%s: struct %s_device_id is %lu bytes. " "The last of %lu is:\n", modname, device_id, id_size, size / id_size); for (i = 0; i < id_size; i++ ) fprintf(stderr,"0x%02x ", *(uint8_t*)(symval+size-id_size+i) ); fprintf(stderr,"\n"); fatal("%s: struct %s_device_id is not terminated " "with a NULL entry!\n", modname, device_id); } } } /* USB is special because the bcdDevice can be matched against a numeric range */ /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipN" */ static void do_usb_entry(struct usb_device_id *id, unsigned int bcdDevice_initial, int bcdDevice_initial_digits, unsigned char range_lo, unsigned char range_hi, struct module *mod) { char alias[500]; strcpy(alias, "usb:"); ADD(alias, "v", id->match_flags&USB_DEVICE_ID_MATCH_VENDOR, id->idVendor); ADD(alias, "p", id->match_flags&USB_DEVICE_ID_MATCH_PRODUCT, id->idProduct); strcat(alias, "d"); if (bcdDevice_initial_digits) sprintf(alias + strlen(alias), "%0*X", bcdDevice_initial_digits, bcdDevice_initial); if (range_lo == range_hi) sprintf(alias + strlen(alias), "%u", range_lo); else if (range_lo > 0 || range_hi < 9) sprintf(alias + strlen(alias), "[%u-%u]", range_lo, range_hi); if (bcdDevice_initial_digits < (sizeof(id->bcdDevice_lo) * 2 - 1)) strcat(alias, "*"); ADD(alias, "dc", id->match_flags&USB_DEVICE_ID_MATCH_DEV_CLASS, id->bDeviceClass); ADD(alias, "dsc", id->match_flags&USB_DEVICE_ID_MATCH_DEV_SUBCLASS, id->bDeviceSubClass); ADD(alias, "dp", id->match_flags&USB_DEVICE_ID_MATCH_DEV_PROTOCOL, id->bDeviceProtocol); ADD(alias, "ic", id->match_flags&USB_DEVICE_ID_MATCH_INT_CLASS, id->bInterfaceClass); ADD(alias, "isc", id->match_flags&USB_DEVICE_ID_MATCH_INT_SUBCLASS, id->bInterfaceSubClass); ADD(alias, "ip", id->match_flags&USB_DEVICE_ID_MATCH_INT_PROTOCOL, id->bInterfaceProtocol); add_wildcard(alias); buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"%s\");\n", alias); } static void do_usb_entry_multi(struct usb_device_id *id, struct module *mod) { unsigned int devlo, devhi; unsigned char chi, clo; int ndigits; id->match_flags = TO_NATIVE(id->match_flags); id->idVendor = TO_NATIVE(id->idVendor); id->idProduct = TO_NATIVE(id->idProduct); devlo = id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO ? TO_NATIVE(id->bcdDevice_lo) : 0x0U; devhi = id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI ? TO_NATIVE(id->bcdDevice_hi) : ~0x0U; /* * Some modules (visor) have empty slots as placeholder for * run-time specification that results in catch-all alias */ if (!(id->idVendor | id->idProduct | id->bDeviceClass | id->bInterfaceClass)) return; /* Convert numeric bcdDevice range into fnmatch-able pattern(s) */ for (ndigits = sizeof(id->bcdDevice_lo) * 2 - 1; devlo <= devhi; ndigits--) { clo = devlo & 0xf; chi = devhi & 0xf; if (chi > 9) /* it's bcd not hex */ chi = 9; devlo >>= 4; devhi >>= 4; if (devlo == devhi || !ndigits) { do_usb_entry(id, devlo, ndigits, clo, chi, mod); break; } if (clo > 0) do_usb_entry(id, devlo++, ndigits, clo, 9, mod); if (chi < 9) do_usb_entry(id, devhi--, ndigits, 0, chi, mod); } } static void do_usb_table(void *symval, unsigned long size, struct module *mod) { unsigned int i; const unsigned long id_size = sizeof(struct usb_device_id); device_id_check(mod->name, "usb", size, id_size, symval); /* Leave last one: it's the terminator. */ size -= id_size; for (i = 0; i < size; i += id_size) do_usb_entry_multi(symval + i, mod); } /* Looks like: hid:bNvNpN */ static int do_hid_entry(const char *filename, struct hid_device_id *id, char *alias) { id->bus = TO_NATIVE(id->bus); id->vendor = TO_NATIVE(id->vendor); id->product = TO_NATIVE(id->product); sprintf(alias, "hid:b%04X", id->bus); ADD(alias, "v", id->vendor != HID_ANY_ID, id->vendor); ADD(alias, "p", id->product != HID_ANY_ID, id->product); return 1; } /* Looks like: ieee1394:venNmoNspNverN */ static int do_ieee1394_entry(const char *filename, struct ieee1394_device_id *id, char *alias) { id->match_flags = TO_NATIVE(id->match_flags); id->vendor_id = TO_NATIVE(id->vendor_id); id->model_id = TO_NATIVE(id->model_id); id->specifier_id = TO_NATIVE(id->specifier_id); id->version = TO_NATIVE(id->version); strcpy(alias, "ieee1394:"); ADD(alias, "ven", id->match_flags & IEEE1394_MATCH_VENDOR_ID, id->vendor_id); ADD(alias, "mo", id->match_flags & IEEE1394_MATCH_MODEL_ID, id->model_id); ADD(alias, "sp", id->match_flags & IEEE1394_MATCH_SPECIFIER_ID, id->specifier_id); ADD(alias, "ver", id->match_flags & IEEE1394_MATCH_VERSION, id->version); add_wildcard(alias); return 1; } /* Looks like: pci:vNdNsvNsdNbcNscNiN. */ static int do_pci_entry(const char *filename, struct pci_device_id *id, char *alias) { /* Class field can be divided into these three. */ unsigned char baseclass, subclass, interface, baseclass_mask, subclass_mask, interface_mask; id->vendor = TO_NATIVE(id->vendor); id->device = TO_NATIVE(id->device); id->subvendor = TO_NATIVE(id->subvendor); id->subdevice = TO_NATIVE(id->subdevice); id->class = TO_NATIVE(id->class); id->class_mask = TO_NATIVE(id->class_mask); strcpy(alias, "pci:"); ADD(alias, "v", id->vendor != PCI_ANY_ID, id->vendor); ADD(alias, "d", id->device != PCI_ANY_ID, id->device); ADD(alias, "sv", id->subvendor != PCI_ANY_ID, id->subvendor); ADD(alias, "sd", id->subdevice != PCI_ANY_ID, id->subdevice); baseclass = (id->class) >> 16; baseclass_mask = (id->class_mask) >> 16; subclass = (id->class) >> 8; subclass_mask = (id->class_mask) >> 8; interface = id->class; interface_mask = id->class_mask; if ((baseclass_mask != 0 && baseclass_mask != 0xFF) || (subclass_mask != 0 && subclass_mask != 0xFF) || (interface_mask != 0 && interface_mask != 0xFF)) { warn("Can't handle masks in %s:%04X\n", filename, id->class_mask); return 0; } ADD(alias, "bc", baseclass_mask == 0xFF, baseclass); ADD(alias, "sc", subclass_mask == 0xFF, subclass); ADD(alias, "i", interface_mask == 0xFF, interface); add_wildcard(alias); return 1; } /* looks like: "ccw:tNmNdtNdmN" */ static int do_ccw_entry(const char *filename, struct ccw_device_id *id, char *alias) { id->match_flags = TO_NATIVE(id->match_flags); id->cu_type = TO_NATIVE(id->cu_type); id->cu_model = TO_NATIVE(id->cu_model); id->dev_type = TO_NATIVE(id->dev_type); id->dev_model = TO_NATIVE(id->dev_model); strcpy(alias, "ccw:"); ADD(alias, "t", id->match_flags&CCW_DEVICE_ID_MATCH_CU_TYPE, id->cu_type); ADD(alias, "m", id->match_flags&CCW_DEVICE_ID_MATCH_CU_MODEL, id->cu_model); ADD(alias, "dt", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_TYPE, id->dev_type); ADD(alias, "dm", id->match_flags&CCW_DEVICE_ID_MATCH_DEVICE_MODEL, id->dev_model); add_wildcard(alias); return 1; } /* looks like: "ap:tN" */ static int do_ap_entry(const char *filename, struct ap_device_id *id, char *alias) { sprintf(alias, "ap:t%02X*", id->dev_type); return 1; } /* looks like: "css:tN" */ static int do_css_entry(const char *filename, struct css_device_id *id, char *alias) { sprintf(alias, "css:t%01X", id->type); return 1; } /* Looks like: "serio:tyNprNidNexN" */ static int do_serio_entry(const char *filename, struct serio_device_id *id, char *alias) { id->type = TO_NATIVE(id->type); id->proto = TO_NATIVE(id->proto); id->id = TO_NATIVE(id->id); id->extra = TO_NATIVE(id->extra); strcpy(alias, "serio:"); ADD(alias, "ty", id->type != SERIO_ANY, id->type); ADD(alias, "pr", id->proto != SERIO_ANY, id->proto); ADD(alias, "id", id->id != SERIO_ANY, id->id); ADD(alias, "ex", id->extra != SERIO_ANY, id->extra); add_wildcard(alias); return 1; } /* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */ static int do_acpi_entry(const char *filename, struct acpi_device_id *id, char *alias) { sprintf(alias, "acpi*:%s:*", id->id); return 1; } /* looks like: "pnp:dD" */ static void do_pnp_device_entry(void *symval, unsigned long size, struct module *mod) { const unsigned long id_size = sizeof(struct pnp_device_id); const unsigned int count = (size / id_size)-1; const struct pnp_device_id *devs = symval; unsigned int i; device_id_check(mod->name, "pnp", size, id_size, symval); for (i = 0; i < count; i++) { const char *id = (char *)devs[i].id; char acpi_id[sizeof(devs[0].id)]; int j; buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"pnp:d%s*\");\n", id); /* fix broken pnp bus lowercasing */ for (j = 0; j < sizeof(acpi_id); j++) acpi_id[j] = toupper(id[j]); buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id); } } /* looks like: "pnp:dD" for every device of the card */ static void do_pnp_card_entries(void *symval, unsigned long size, struct module *mod) { const unsigned long id_size = sizeof(struct pnp_card_device_id); const unsigned int count = (size / id_size)-1; const struct pnp_card_device_id *cards = symval; unsigned int i; device_id_check(mod->name, "pnp", size, id_size, symval); for (i = 0; i < count; i++) { unsigned int j; const struct pnp_card_device_id *card = &cards[i]; for (j = 0; j < PNP_MAX_DEVICES; j++) { const char *id = (char *)card->devs[j].id; int i2, j2; int dup = 0; if (!id[0]) break; /* find duplicate, already added value */ for (i2 = 0; i2 < i && !dup; i2++) { const struct pnp_card_device_id *card2 = &cards[i2]; for (j2 = 0; j2 < PNP_MAX_DEVICES; j2++) { const char *id2 = (char *)card2->devs[j2].id; if (!id2[0]) break; if (!strcmp(id, id2)) { dup = 1; break; } } } /* add an individual alias for every device entry */ if (!dup) { char acpi_id[sizeof(card->devs[0].id)]; int k; buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"pnp:d%s*\");\n", id); /* fix broken pnp bus lowercasing */ for (k = 0; k < sizeof(acpi_id); k++) acpi_id[k] = toupper(id[k]); buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id); } } } } /* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */ static int do_pcmcia_entry(const char *filename, struct pcmcia_device_id *id, char *alias) { unsigned int i; id->match_flags = TO_NATIVE(id->match_flags); id->manf_id = TO_NATIVE(id->manf_id); id->card_id = TO_NATIVE(id->card_id); id->func_id = TO_NATIVE(id->func_id); id->function = TO_NATIVE(id->function); id->device_no = TO_NATIVE(id->device_no); for (i=0; i<4; i++) { id->prod_id_hash[i] = TO_NATIVE(id->prod_id_hash[i]); } strcpy(alias, "pcmcia:"); ADD(alias, "m", id->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID, id->manf_id); ADD(alias, "c", id->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID, id->card_id); ADD(alias, "f", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID, id->func_id); ADD(alias, "fn", id->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION, id->function); ADD(alias, "pfn", id->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO, id->device_no); ADD(alias, "pa", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1, id->prod_id_hash[0]); ADD(alias, "pb", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2, id->prod_id_hash[1]); ADD(alias, "pc", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3, id->prod_id_hash[2]); ADD(alias, "pd", id->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4, id->prod_id_hash[3]); add_wildcard(alias); return 1; } static int do_of_entry (const char *filename, struct of_device_id *of, char *alias) { int len; char *tmp; len = sprintf (alias, "of:N%sT%s", of->name[0] ? of->name : "*", of->type[0] ? of->type : "*"); if (of->compatible[0]) sprintf (&alias[len], "%sC%s", of->type[0] ? "*" : "", of->compatible); /* Replace all whitespace with underscores */ for (tmp = alias; tmp && *tmp; tmp++) if (isspace (*tmp)) *tmp = '_'; add_wildcard(alias); return 1; } static int do_vio_entry(const char *filename, struct vio_device_id *vio, char *alias) { char *tmp; sprintf(alias, "vio:T%sS%s", vio->type[0] ? vio->type : "*", vio->compat[0] ? vio->compat : "*"); /* Replace all whitespace with underscores */ for (tmp = alias; tmp && *tmp; tmp++) if (isspace (*tmp)) *tmp = '_'; add_wildcard(alias); return 1; } #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) static void do_input(char *alias, kernel_ulong_t *arr, unsigned int min, unsigned int max) { unsigned int i; for (i = min; i < max; i++) if (arr[i / BITS_PER_LONG] & (1L << (i%BITS_PER_LONG))) sprintf(alias + strlen(alias), "%X,*", i); } /* input:b0v0p0e0-eXkXrXaXmXlXsXfXwX where X is comma-separated %02X. */ static int do_input_entry(const char *filename, struct input_device_id *id, char *alias) { sprintf(alias, "input:"); ADD(alias, "b", id->flags & INPUT_DEVICE_ID_MATCH_BUS, id->bustype); ADD(alias, "v", id->flags & INPUT_DEVICE_ID_MATCH_VENDOR, id->vendor); ADD(alias, "p", id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT, id->product); ADD(alias, "e", id->flags & INPUT_DEVICE_ID_MATCH_VERSION, id->version); sprintf(alias + strlen(alias), "-e*"); if (id->flags & INPUT_DEVICE_ID_MATCH_EVBIT) do_input(alias, id->evbit, 0, INPUT_DEVICE_ID_EV_MAX); sprintf(alias + strlen(alias), "k*"); if (id->flags & INPUT_DEVICE_ID_MATCH_KEYBIT) do_input(alias, id->keybit, INPUT_DEVICE_ID_KEY_MIN_INTERESTING, INPUT_DEVICE_ID_KEY_MAX); sprintf(alias + strlen(alias), "r*"); if (id->flags & INPUT_DEVICE_ID_MATCH_RELBIT) do_input(alias, id->relbit, 0, INPUT_DEVICE_ID_REL_MAX); sprintf(alias + strlen(alias), "a*"); if (id->flags & INPUT_DEVICE_ID_MATCH_ABSBIT) do_input(alias, id->absbit, 0, INPUT_DEVICE_ID_ABS_MAX); sprintf(alias + strlen(alias), "m*"); if (id->flags & INPUT_DEVICE_ID_MATCH_MSCIT) do_input(alias, id->mscbit, 0, INPUT_DEVICE_ID_MSC_MAX); sprintf(alias + strlen(alias), "l*"); if (id->flags & INPUT_DEVICE_ID_MATCH_LEDBIT) do_input(alias, id->ledbit, 0, INPUT_DEVICE_ID_LED_MAX); sprintf(alias + strlen(alias), "s*"); if (id->flags & INPUT_DEVICE_ID_MATCH_SNDBIT) do_input(alias, id->sndbit, 0, INPUT_DEVICE_ID_SND_MAX); sprintf(alias + strlen(alias), "f*"); if (id->flags & INPUT_DEVICE_ID_MATCH_FFBIT) do_input(alias, id->ffbit, 0, INPUT_DEVICE_ID_FF_MAX); sprintf(alias + strlen(alias), "w*"); if (id->flags & INPUT_DEVICE_ID_MATCH_SWBIT) do_input(alias, id->swbit, 0, INPUT_DEVICE_ID_SW_MAX); return 1; } static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa, char *alias) { if (eisa->sig[0]) sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", eisa->sig); else strcat(alias, "*"); return 1; } /* Looks like: parisc:tNhvNrevNsvN */ static int do_parisc_entry(const char *filename, struct parisc_device_id *id, char *alias) { id->hw_type = TO_NATIVE(id->hw_type); id->hversion = TO_NATIVE(id->hversion); id->hversion_rev = TO_NATIVE(id->hversion_rev); id->sversion = TO_NATIVE(id->sversion); strcpy(alias, "parisc:"); ADD(alias, "t", id->hw_type != PA_HWTYPE_ANY_ID, id->hw_type); ADD(alias, "hv", id->hversion != PA_HVERSION_ANY_ID, id->hversion); ADD(alias, "rev", id->hversion_rev != PA_HVERSION_REV_ANY_ID, id->hversion_rev); ADD(alias, "sv", id->sversion != PA_SVERSION_ANY_ID, id->sversion); add_wildcard(alias); return 1; } /* Looks like: sdio:cNvNdN. */ static int do_sdio_entry(const char *filename, struct sdio_device_id *id, char *alias) { id->class = TO_NATIVE(id->class); id->vendor = TO_NATIVE(id->vendor); id->device = TO_NATIVE(id->device); strcpy(alias, "sdio:"); ADD(alias, "c", id->class != (__u8)SDIO_ANY_ID, id->class); ADD(alias, "v", id->vendor != (__u16)SDIO_ANY_ID, id->vendor); ADD(alias, "d", id->device != (__u16)SDIO_ANY_ID, id->device); add_wildcard(alias); return 1; } /* Looks like: ssb:vNidNrevN. */ static int do_ssb_entry(const char *filename, struct ssb_device_id *id, char *alias) { id->vendor = TO_NATIVE(id->vendor); id->coreid = TO_NATIVE(id->coreid); id->revision = TO_NATIVE(id->revision); strcpy(alias, "ssb:"); ADD(alias, "v", id->vendor != SSB_ANY_VENDOR, id->vendor); ADD(alias, "id", id->coreid != SSB_ANY_ID, id->coreid); ADD(alias, "rev", id->revision != SSB_ANY_REV, id->revision); add_wildcard(alias); return 1; } /* Looks like: virtio:dNvN */ static int do_virtio_entry(const char *filename, struct virtio_device_id *id, char *alias) { id->device = TO_NATIVE(id->device); id->vendor = TO_NATIVE(id->vendor); strcpy(alias, "virtio:"); ADD(alias, "d", id->device != VIRTIO_DEV_ANY_ID, id->device); ADD(alias, "v", id->vendor != VIRTIO_DEV_ANY_ID, id->vendor); add_wildcard(alias); return 1; } /* Looks like: i2c:S */ static int do_i2c_entry(const char *filename, struct i2c_device_id *id, char *alias) { sprintf(alias, I2C_MODULE_PREFIX "%s", id->name); return 1; } /* Looks like: spi:S */ static int do_spi_entry(const char *filename, struct spi_device_id *id, char *alias) { sprintf(alias, SPI_MODULE_PREFIX "%s", id->name); return 1; } static const struct dmifield { const char *prefix; int field; } dmi_fields[] = { { "bvn", DMI_BIOS_VENDOR }, { "bvr", DMI_BIOS_VERSION }, { "bd", DMI_BIOS_DATE }, { "svn", DMI_SYS_VENDOR }, { "pn", DMI_PRODUCT_NAME }, { "pvr", DMI_PRODUCT_VERSION }, { "rvn", DMI_BOARD_VENDOR }, { "rn", DMI_BOARD_NAME }, { "rvr", DMI_BOARD_VERSION }, { "cvn", DMI_CHASSIS_VENDOR }, { "ct", DMI_CHASSIS_TYPE }, { "cvr", DMI_CHASSIS_VERSION }, { NULL, DMI_NONE } }; static void dmi_ascii_filter(char *d, const char *s) { /* Filter out characters we don't want to see in the modalias string */ for (; *s; s++) if (*s > ' ' && *s < 127 && *s != ':') *(d++) = *s; *d = 0; } static int do_dmi_entry(const char *filename, struct dmi_system_id *id, char *alias) { int i, j; sprintf(alias, "dmi*"); for (i = 0; i < ARRAY_SIZE(dmi_fields); i++) { for (j = 0; j < 4; j++) { if (id->matches[j].slot && id->matches[j].slot == dmi_fields[i].field) { sprintf(alias + strlen(alias), ":%s*", dmi_fields[i].prefix); dmi_ascii_filter(alias + strlen(alias), id->matches[j].substr); strcat(alias, "*"); } } } strcat(alias, ":"); return 1; } static int do_platform_entry(const char *filename, struct platform_device_id *id, char *alias) { sprintf(alias, PLATFORM_MODULE_PREFIX "%s", id->name); return 1; } /* Ignore any prefix, eg. some architectures prepend _ */ static inline int sym_is(const char *symbol, const char *name) { const char *match; match = strstr(symbol, name); if (!match) return 0; return match[strlen(symbol)] == '\0'; } static void do_table(void *symval, unsigned long size, unsigned long id_size, const char *device_id, void *function, struct module *mod) { unsigned int i; char alias[500]; int (*do_entry)(const char *, void *entry, char *alias) = function; device_id_check(mod->name, device_id, size, id_size, symval); /* Leave last one: it's the terminator. */ size -= id_size; for (i = 0; i < size; i += id_size) { if (do_entry(mod->name, symval+i, alias)) { buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"%s\");\n", alias); } } } /* Create MODULE_ALIAS() statements. * At this time, we cannot write the actual output C source yet, * so we write into the mod->dev_table_buf buffer. */ void handle_moddevtable(struct module *mod, struct elf_info *info, Elf_Sym *sym, const char *symname) { void *symval; char *zeros = NULL; /* We're looking for a section relative symbol */ if (!sym->st_shndx || sym->st_shndx >= info->hdr->e_shnum) return; /* Handle all-NULL symbols allocated into .bss */ if (info->sechdrs[sym->st_shndx].sh_type & SHT_NOBITS) { zeros = calloc(1, sym->st_size); symval = zeros; } else { symval = (void *)info->hdr + info->sechdrs[sym->st_shndx].sh_offset + sym->st_value; } if (sym_is(symname, "__mod_pci_device_table")) do_table(symval, sym->st_size, sizeof(struct pci_device_id), "pci", do_pci_entry, mod); else if (sym_is(symname, "__mod_usb_device_table")) /* special case to handle bcdDevice ranges */ do_usb_table(symval, sym->st_size, mod); else if (sym_is(symname, "__mod_hid_device_table")) do_table(symval, sym->st_size, sizeof(struct hid_device_id), "hid", do_hid_entry, mod); else if (sym_is(symname, "__mod_ieee1394_device_table")) do_table(symval, sym->st_size, sizeof(struct ieee1394_device_id), "ieee1394", do_ieee1394_entry, mod); else if (sym_is(symname, "__mod_ccw_device_table")) do_table(symval, sym->st_size, sizeof(struct ccw_device_id), "ccw", do_ccw_entry, mod); else if (sym_is(symname, "__mod_ap_device_table")) do_table(symval, sym->st_size, sizeof(struct ap_device_id), "ap", do_ap_entry, mod); else if (sym_is(symname, "__mod_css_device_table")) do_table(symval, sym->st_size, sizeof(struct css_device_id), "css", do_css_entry, mod); else if (sym_is(symname, "__mod_serio_device_table")) do_table(symval, sym->st_size, sizeof(struct serio_device_id), "serio", do_serio_entry, mod); else if (sym_is(symname, "__mod_acpi_device_table")) do_table(symval, sym->st_size, sizeof(struct acpi_device_id), "acpi", do_acpi_entry, mod); else if (sym_is(symname, "__mod_pnp_device_table")) do_pnp_device_entry(symval, sym->st_size, mod); else if (sym_is(symname, "__mod_pnp_card_device_table")) do_pnp_card_entries(symval, sym->st_size, mod); else if (sym_is(symname, "__mod_pcmcia_device_table")) do_table(symval, sym->st_size, sizeof(struct pcmcia_device_id), "pcmcia", do_pcmcia_entry, mod); else if (sym_is(symname, "__mod_of_device_table")) do_table(symval, sym->st_size, sizeof(struct of_device_id), "of", do_of_entry, mod); else if (sym_is(symname, "__mod_vio_device_table")) do_table(symval, sym->st_size, sizeof(struct vio_device_id), "vio", do_vio_entry, mod); else if (sym_is(symname, "__mod_input_device_table")) do_table(symval, sym->st_size, sizeof(struct input_device_id), "input", do_input_entry, mod); else if (sym_is(symname, "__mod_eisa_device_table")) do_table(symval, sym->st_size, sizeof(struct eisa_device_id), "eisa", do_eisa_entry, mod); else if (sym_is(symname, "__mod_parisc_device_table")) do_table(symval, sym->st_size, sizeof(struct parisc_device_id), "parisc", do_parisc_entry, mod); else if (sym_is(symname, "__mod_sdio_device_table")) do_table(symval, sym->st_size, sizeof(struct sdio_device_id), "sdio", do_sdio_entry, mod); else if (sym_is(symname, "__mod_ssb_device_table")) do_table(symval, sym->st_size, sizeof(struct ssb_device_id), "ssb", do_ssb_entry, mod); else if (sym_is(symname, "__mod_virtio_device_table")) do_table(symval, sym->st_size, sizeof(struct virtio_device_id), "virtio", do_virtio_entry, mod); else if (sym_is(symname, "__mod_i2c_device_table")) do_table(symval, sym->st_size, sizeof(struct i2c_device_id), "i2c", do_i2c_entry, mod); else if (sym_is(symname, "__mod_spi_device_table")) do_table(symval, sym->st_size, sizeof(struct spi_device_id), "spi", do_spi_entry, mod); else if (sym_is(symname, "__mod_dmi_device_table")) do_table(symval, sym->st_size, sizeof(struct dmi_system_id), "dmi", do_dmi_entry, mod); else if (sym_is(symname, "__mod_platform_device_table")) do_table(symval, sym->st_size, sizeof(struct platform_device_id), "platform", do_platform_entry, mod); free(zeros); } /* Now add out buffered information to the generated C source */ void add_moddevtable(struct buffer *buf, struct module *mod) { buf_printf(buf, "\n"); buf_write(buf, mod->dev_table_buf.p, mod->dev_table_buf.pos); free(mod->dev_table_buf.p); } 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 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/**
  * Functions implementing wlan scan IOCTL and firmware command APIs
  *
  * IOCTL handlers as well as command preperation and response routines
  *  for sending scan commands to the firmware.
  */
#include <linux/ctype.h>
#include <linux/if.h>
#include <linux/netdevice.h>
#include <linux/wireless.h>

#include <net/ieee80211.h>
#include <net/iw_handler.h>

#include "host.h"
#include "decl.h"
#include "dev.h"
#include "scan.h"

//! Approximate amount of data needed to pass a scan result back to iwlist
#define MAX_SCAN_CELL_SIZE  (IW_EV_ADDR_LEN             \
                             + IW_ESSID_MAX_SIZE        \
                             + IW_EV_UINT_LEN           \
                             + IW_EV_FREQ_LEN           \
                             + IW_EV_QUAL_LEN           \
                             + IW_ESSID_MAX_SIZE        \
                             + IW_EV_PARAM_LEN          \
                             + 40)	/* 40 for WPAIE */

//! Memory needed to store a max sized channel List TLV for a firmware scan
#define CHAN_TLV_MAX_SIZE  (sizeof(struct mrvlietypesheader)    \
                            + (MRVDRV_MAX_CHANNELS_PER_SCAN     \
                               * sizeof(struct chanscanparamset)))

//! Memory needed to store a max number/size SSID TLV for a firmware scan
#define SSID_TLV_MAX_SIZE  (1 * sizeof(struct mrvlietypes_ssidparamset))

//! Maximum memory needed for a wlan_scan_cmd_config with all TLVs at max
#define MAX_SCAN_CFG_ALLOC (sizeof(struct wlan_scan_cmd_config)  \
                            + sizeof(struct mrvlietypes_numprobes)   \
                            + CHAN_TLV_MAX_SIZE                 \
                            + SSID_TLV_MAX_SIZE)

//! The maximum number of channels the firmware can scan per command
#define MRVDRV_MAX_CHANNELS_PER_SCAN   14

/**
 * @brief Number of channels to scan per firmware scan command issuance.
 *
 *  Number restricted to prevent hitting the limit on the amount of scan data
 *  returned in a single firmware scan command.
 */
#define MRVDRV_CHANNELS_PER_SCAN_CMD   4

//! Scan time specified in the channel TLV for each channel for passive scans
#define MRVDRV_PASSIVE_SCAN_CHAN_TIME  100

//! Scan time specified in the channel TLV for each channel for active scans
#define MRVDRV_ACTIVE_SCAN_CHAN_TIME   100

//! Macro to enable/disable SSID checking before storing a scan table
#ifdef DISCARD_BAD_SSID
#define CHECK_SSID_IS_VALID(x) ssid_valid(&bssidEntry.ssid)
#else
#define CHECK_SSID_IS_VALID(x) 1
#endif

/**
 *  @brief Check if a scanned network compatible with the driver settings
 *
 *   WEP     WPA     WPA2    ad-hoc  encrypt                      Network
 * enabled enabled  enabled   AES     mode   privacy  WPA  WPA2  Compatible
 *    0       0        0       0      NONE      0      0    0   yes No security
 *    1       0        0       0      NONE      1      0    0   yes Static WEP
 *    0       1        0       0       x        1x     1    x   yes WPA
 *    0       0        1       0       x        1x     x    1   yes WPA2
 *    0       0        0       1      NONE      1      0    0   yes Ad-hoc AES
 *    0       0        0       0     !=NONE     1      0    0   yes Dynamic WEP
 *
 *
 *  @param adapter A pointer to wlan_adapter
 *  @param index   Index in scantable to check against current driver settings
 *  @param mode    Network mode: Infrastructure or IBSS
 *
 *  @return        Index in scantable, or error code if negative
 */
static int is_network_compatible(wlan_adapter * adapter, int index, u8 mode)
{
	ENTER();

	if (adapter->scantable[index].mode == mode) {
		if (   !adapter->secinfo.wep_enabled
		    && !adapter->secinfo.WPAenabled
		    && !adapter->secinfo.WPA2enabled
		    && adapter->scantable[index].wpa_ie[0] != WPA_IE
		    && adapter->scantable[index].rsn_ie[0] != WPA2_IE
		    && !adapter->scantable[index].privacy) {
			/* no security */
			LEAVE();
			return index;
		} else if (   adapter->secinfo.wep_enabled
			   && !adapter->secinfo.WPAenabled
			   && !adapter->secinfo.WPA2enabled
			   && adapter->scantable[index].privacy) {
			/* static WEP enabled */
			LEAVE();
			return index;
		} else if (   !adapter->secinfo.wep_enabled
			   && adapter->secinfo.WPAenabled
			   && !adapter->secinfo.WPA2enabled
			   && (adapter->scantable[index].wpa_ie[0] == WPA_IE)
			   /* privacy bit may NOT be set in some APs like LinkSys WRT54G
			      && adapter->scantable[index].privacy */
		    ) {
			/* WPA enabled */
			lbs_pr_debug(1,
			       "is_network_compatible() WPA: index=%d wpa_ie=%#x "
			       "wpa2_ie=%#x WEP=%s WPA=%s WPA2=%s "
			       "privacy=%#x\n", index,
			       adapter->scantable[index].wpa_ie[0],
			       adapter->scantable[index].rsn_ie[0],
			       adapter->secinfo.wep_enabled ? "e" : "d",
			       adapter->secinfo.WPAenabled ? "e" : "d",
			       adapter->secinfo.WPA2enabled ? "e" : "d",
			       adapter->scantable[index].privacy);
			LEAVE();
			return index;
		} else if (   !adapter->secinfo.wep_enabled
			   && !adapter->secinfo.WPAenabled
			   && adapter->secinfo.WPA2enabled
			   && (adapter->scantable[index].rsn_ie[0] == WPA2_IE)
			   /* privacy bit may NOT be set in some APs like LinkSys WRT54G
			      && adapter->scantable[index].privacy */
		    ) {
			/* WPA2 enabled */
			lbs_pr_debug(1,
			       "is_network_compatible() WPA2: index=%d wpa_ie=%#x "
			       "wpa2_ie=%#x WEP=%s WPA=%s WPA2=%s "
			       "privacy=%#x\n", index,
			       adapter->scantable[index].wpa_ie[0],
			       adapter->scantable[index].rsn_ie[0],
			       adapter->secinfo.wep_enabled ? "e" : "d",
			       adapter->secinfo.WPAenabled ? "e" : "d",
			       adapter->secinfo.WPA2enabled ? "e" : "d",
			       adapter->scantable[index].privacy);
			LEAVE();
			return index;
		} else if (   !adapter->secinfo.wep_enabled
			   && !adapter->secinfo.WPAenabled
			   && !adapter->secinfo.WPA2enabled
			   && (adapter->scantable[index].wpa_ie[0] != WPA_IE)
			   && (adapter->scantable[index].rsn_ie[0] != WPA2_IE)
			   && adapter->scantable[index].privacy) {
			/* dynamic WEP enabled */
			lbs_pr_debug(1,
			       "is_network_compatible() dynamic WEP: index=%d "
			       "wpa_ie=%#x wpa2_ie=%#x privacy=%#x\n",
			       index,
			       adapter->scantable[index].wpa_ie[0],
			       adapter->scantable[index].rsn_ie[0],
			       adapter->scantable[index].privacy);
			LEAVE();
			return index;
		}

		/* security doesn't match */
		lbs_pr_debug(1,
		       "is_network_compatible() FAILED: index=%d wpa_ie=%#x "
		       "wpa2_ie=%#x WEP=%s WPA=%s WPA2=%s privacy=%#x\n",
		       index,
		       adapter->scantable[index].wpa_ie[0],
		       adapter->scantable[index].rsn_ie[0],
		       adapter->secinfo.wep_enabled ? "e" : "d",
		       adapter->secinfo.WPAenabled ? "e" : "d",
		       adapter->secinfo.WPA2enabled ? "e" : "d",
		       adapter->scantable[index].privacy);
		LEAVE();
		return -ECONNREFUSED;
	}

	/* mode doesn't match */
	LEAVE();
	return -ENETUNREACH;
}

/**
 *  @brief This function validates a SSID as being able to be printed
 *
 *  @param pssid   SSID structure to validate
 *
 *  @return        TRUE or FALSE
 */
static u8 ssid_valid(struct WLAN_802_11_SSID *pssid)
{
	int ssididx;

	for (ssididx = 0; ssididx < pssid->ssidlength; ssididx++) {
		if (!isprint(pssid->ssid[ssididx])) {
			return 0;
		}
	}

	return 1;
}

/**
 *  @brief Post process the scan table after a new scan command has completed
 *
 *  Inspect each entry of the scan table and try to find an entry that
 *    matches our current associated/joined network from the scan.  If
 *    one is found, update the stored copy of the bssdescriptor for our
 *    current network.
 *
 *  Debug dump the current scan table contents if compiled accordingly.
 *
 *  @param priv   A pointer to wlan_private structure
 *
 *  @return       void
 */
static void wlan_scan_process_results(wlan_private * priv)
{
	wlan_adapter *adapter = priv->adapter;
	int foundcurrent;
	int i;

	foundcurrent = 0;

	if (adapter->connect_status == libertas_connected) {
		/* try to find the current BSSID in the new scan list */
		for (i = 0; i < adapter->numinscantable; i++) {
			if (!libertas_SSID_cmp(&adapter->scantable[i].ssid,
				     &adapter->curbssparams.ssid) &&
			    !memcmp(adapter->curbssparams.bssid,
				    adapter->scantable[i].macaddress,
				    ETH_ALEN)) {
				foundcurrent = 1;
			}
		}

		if (foundcurrent) {
			/* Make a copy of current BSSID descriptor */
			memcpy(&adapter->curbssparams.bssdescriptor,
			       &adapter->scantable[i],
			       sizeof(adapter->curbssparams.bssdescriptor));
		}
	}

	for (i = 0; i < adapter->numinscantable; i++) {
		lbs_pr_debug(1, "Scan:(%02d) %02x:%02x:%02x:%02x:%02x:%02x, "
		       "RSSI[%03d], SSID[%s]\n",
		       i,
		       adapter->scantable[i].macaddress[0],
		       adapter->scantable[i].macaddress[1],
		       adapter->scantable[i].macaddress[2],
		       adapter->scantable[i].macaddress[3],
		       adapter->scantable[i].macaddress[4],
		       adapter->scantable[i].macaddress[5],
		       (s32) adapter->scantable[i].rssi,
		       adapter->scantable[i].ssid.ssid);
	}
}

/**
 *  @brief Create a channel list for the driver to scan based on region info
 *
 *  Use the driver region/band information to construct a comprehensive list
 *    of channels to scan.  This routine is used for any scan that is not
 *    provided a specific channel list to scan.
 *
 *  @param priv          A pointer to wlan_private structure
 *  @param scanchanlist  Output parameter: resulting channel list to scan
 *  @param filteredscan  Flag indicating whether or not a BSSID or SSID filter
 *                       is being sent in the command to firmware.  Used to
 *                       increase the number of channels sent in a scan
 *                       command and to disable the firmware channel scan
 *                       filter.
 *
 *  @return              void
 */
static void wlan_scan_create_channel_list(wlan_private * priv,
					  struct chanscanparamset * scanchanlist,
					  u8 filteredscan)
{

	wlan_adapter *adapter = priv->adapter;
	struct region_channel *scanregion;
	struct chan_freq_power *cfp;
	int rgnidx;
	int chanidx;
	int nextchan;
	u8 scantype;

	chanidx = 0;

	/* Set the default scan type to the user specified type, will later
	 *   be changed to passive on a per channel basis if restricted by
	 *   regulatory requirements (11d or 11h)
	 */
	scantype = adapter->scantype;

	for (rgnidx = 0; rgnidx < ARRAY_SIZE(adapter->region_channel); rgnidx++) {
		if (priv->adapter->enable11d &&
		    adapter->connect_status != libertas_connected) {
			/* Scan all the supported chan for the first scan */
			if (!adapter->universal_channel[rgnidx].valid)
				continue;
			scanregion = &adapter->universal_channel[rgnidx];

			/* clear the parsed_region_chan for the first scan */
			memset(&adapter->parsed_region_chan, 0x00,
			       sizeof(adapter->parsed_region_chan));
		} else {
			if (!adapter->region_channel[rgnidx].valid)
				continue;
			scanregion = &adapter->region_channel[rgnidx];
		}

		for (nextchan = 0;
		     nextchan < scanregion->nrcfp; nextchan++, chanidx++) {

			cfp = scanregion->CFP + nextchan;

			if (priv->adapter->enable11d) {
				scantype =
				    libertas_get_scan_type_11d(cfp->channel,
							   &adapter->
							   parsed_region_chan);
			}

			switch (scanregion->band) {
			case BAND_B:
			case BAND_G:
			default:
				scanchanlist[chanidx].radiotype =
				    cmd_scan_radio_type_bg;
				break;
			}

			if (scantype == cmd_scan_type_passive) {
				scanchanlist[chanidx].maxscantime =
				    cpu_to_le16
				    (MRVDRV_PASSIVE_SCAN_CHAN_TIME);
				scanchanlist[chanidx].chanscanmode.passivescan =
				    1;
			} else {
				scanchanlist[chanidx].maxscantime =
				    cpu_to_le16
				    (MRVDRV_ACTIVE_SCAN_CHAN_TIME);
				scanchanlist[chanidx].chanscanmode.passivescan =
				    0;
			}

			scanchanlist[chanidx].channumber = cfp->channel;

			if (filteredscan) {
				scanchanlist[chanidx].chanscanmode.
				    disablechanfilt = 1;
			}
		}
	}
}

/**
 *  @brief Construct a wlan_scan_cmd_config structure to use in issue scan cmds
 *
 *  Application layer or other functions can invoke wlan_scan_networks
 *    with a scan configuration supplied in a wlan_ioctl_user_scan_cfg struct.
 *    This structure is used as the basis of one or many wlan_scan_cmd_config
 *    commands that are sent to the command processing module and sent to
 *    firmware.
 *
 *  Create a wlan_scan_cmd_config based on the following user supplied
 *    parameters (if present):
 *             - SSID filter
 *             - BSSID filter
 *             - Number of Probes to be sent
 *             - channel list
 *
 *  If the SSID or BSSID filter is not present, disable/clear the filter.
 *  If the number of probes is not set, use the adapter default setting
 *  Qualify the channel
 *
 *  @param priv             A pointer to wlan_private structure
 *  @param puserscanin      NULL or pointer to scan configuration parameters
 *  @param ppchantlvout     Output parameter: Pointer to the start of the
 *                          channel TLV portion of the output scan config
 *  @param pscanchanlist    Output parameter: Pointer to the resulting channel
 *                          list to scan
 *  @param pmaxchanperscan  Output parameter: Number of channels to scan for
 *                          each issuance of the firmware scan command
 *  @param pfilteredscan    Output parameter: Flag indicating whether or not
 *                          a BSSID or SSID filter is being sent in the
 *                          command to firmware.  Used to increase the number
 *                          of channels sent in a scan command and to
 *                          disable the firmware channel scan filter.
 *  @param pscancurrentonly Output parameter: Flag indicating whether or not
 *                          we are only scanning our current active channel
 *
 *  @return                 resulting scan configuration
 */
static struct wlan_scan_cmd_config *
wlan_scan_setup_scan_config(wlan_private * priv,
			    const struct wlan_ioctl_user_scan_cfg * puserscanin,
			    struct mrvlietypes_chanlistparamset ** ppchantlvout,
			    struct chanscanparamset * pscanchanlist,
			    int *pmaxchanperscan,
			    u8 * pfilteredscan,
			    u8 * pscancurrentonly)
{
	wlan_adapter *adapter = priv->adapter;
	const u8 zeromac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
	struct mrvlietypes_numprobes *pnumprobestlv;
	struct mrvlietypes_ssidparamset *pssidtlv;
	struct wlan_scan_cmd_config * pscancfgout = NULL;
	u8 *ptlvpos;
	u16 numprobes;
	u16 ssidlen;
	int chanidx;
	int scantype;
	int scandur;
	int channel;
	int radiotype;

	pscancfgout = kzalloc(MAX_SCAN_CFG_ALLOC, GFP_KERNEL);
	if (pscancfgout == NULL)
		goto out;

	/* The tlvbufferlen is calculated for each scan command.  The TLVs added
	 *   in this routine will be preserved since the routine that sends
	 *   the command will append channelTLVs at *ppchantlvout.  The difference
	 *   between the *ppchantlvout and the tlvbuffer start will be used
	 *   to calculate the size of anything we add in this routine.
	 */
	pscancfgout->tlvbufferlen = 0;

	/* Running tlv pointer.  Assigned to ppchantlvout at end of function
	 *  so later routines know where channels can be added to the command buf
	 */
	ptlvpos = pscancfgout->tlvbuffer;

	/*
	 * Set the initial scan paramters for progressive scanning.  If a specific
	 *   BSSID or SSID is used, the number of channels in the scan command
	 *   will be increased to the absolute maximum
	 */
	*pmaxchanperscan = MRVDRV_CHANNELS_PER_SCAN_CMD;

	/* Initialize the scan as un-filtered by firmware, set to TRUE below if
	 *   a SSID or BSSID filter is sent in the command
	 */
	*pfilteredscan = 0;

	/* Initialize the scan as not being only on the current channel.  If
	 *   the channel list is customized, only contains one channel, and
	 *   is the active channel, this is set true and data flow is not halted.
	 */
	*pscancurrentonly = 0;

	if (puserscanin) {

		/* Set the bss type scan filter, use adapter setting if unset */
		pscancfgout->bsstype =
		    (puserscanin->bsstype ? puserscanin->bsstype : adapter->
		     scanmode);

		/* Set the number of probes to send, use adapter setting if unset */
		numprobes = (puserscanin->numprobes ? puserscanin->numprobes :
			     adapter->scanprobes);

		/*
		 * Set the BSSID filter to the incoming configuration,
		 *   if non-zero.  If not set, it will remain disabled (all zeros).
		 */
		memcpy(pscancfgout->specificBSSID,
		       puserscanin->specificBSSID,
		       sizeof(pscancfgout->specificBSSID));

		ssidlen = strlen(puserscanin->specificSSID);

		if (ssidlen) {
			pssidtlv =
			    (struct mrvlietypes_ssidparamset *) pscancfgout->
			    tlvbuffer;
			pssidtlv->header.type = cpu_to_le16(TLV_TYPE_SSID);
			pssidtlv->header.len = cpu_to_le16(ssidlen);
			memcpy(pssidtlv->ssid, puserscanin->specificSSID,
			       ssidlen);
			ptlvpos += sizeof(pssidtlv->header) + ssidlen;
		}

		/*
		 *  The default number of channels sent in the command is low to
		 *    ensure the response buffer from the firmware does not truncate
		 *    scan results.  That is not an issue with an SSID or BSSID
		 *    filter applied to the scan results in the firmware.
		 */
		if (ssidlen || (memcmp(pscancfgout->specificBSSID,
				       &zeromac, sizeof(zeromac)) != 0)) {
			*pmaxchanperscan = MRVDRV_MAX_CHANNELS_PER_SCAN;
			*pfilteredscan = 1;
		}
	} else {
		pscancfgout->bsstype = adapter->scanmode;
		numprobes = adapter->scanprobes;
	}

	/* If the input config or adapter has the number of Probes set, add tlv */
	if (numprobes) {
		pnumprobestlv = (struct mrvlietypes_numprobes *) ptlvpos;
		pnumprobestlv->header.type =
		    cpu_to_le16(TLV_TYPE_NUMPROBES);
		pnumprobestlv->header.len = sizeof(pnumprobestlv->numprobes);
		pnumprobestlv->numprobes = cpu_to_le16(numprobes);

		ptlvpos +=
		    sizeof(pnumprobestlv->header) + pnumprobestlv->header.len;

		pnumprobestlv->header.len =
		    cpu_to_le16(pnumprobestlv->header.len);
	}

	/*
	 * Set the output for the channel TLV to the address in the tlv buffer
	 *   past any TLVs that were added in this fuction (SSID, numprobes).
	 *   channel TLVs will be added past this for each scan command, preserving
	 *   the TLVs that were previously added.
	 */
	*ppchantlvout = (struct mrvlietypes_chanlistparamset *) ptlvpos;

	if (puserscanin && puserscanin->chanlist[0].channumber) {

		lbs_pr_debug(1, "Scan: Using supplied channel list\n");

		for (chanidx = 0;
		     chanidx < WLAN_IOCTL_USER_SCAN_CHAN_MAX
		     && puserscanin->chanlist[chanidx].channumber; chanidx++) {

			channel = puserscanin->chanlist[chanidx].channumber;
			(pscanchanlist + chanidx)->channumber = channel;

			radiotype = puserscanin->chanlist[chanidx].radiotype;
			(pscanchanlist + chanidx)->radiotype = radiotype;

			scantype = puserscanin->chanlist[chanidx].scantype;

			if (scantype == cmd_scan_type_passive) {
				(pscanchanlist +
				 chanidx)->chanscanmode.passivescan = 1;
			} else {
				(pscanchanlist +
				 chanidx)->chanscanmode.passivescan = 0;
			}

			if (puserscanin->chanlist[chanidx].scantime) {
				scandur =
				    puserscanin->chanlist[chanidx].scantime;
			} else {
				if (scantype == cmd_scan_type_passive) {
					scandur = MRVDRV_PASSIVE_SCAN_CHAN_TIME;
				} else {
					scandur = MRVDRV_ACTIVE_SCAN_CHAN_TIME;
				}
			}

			(pscanchanlist + chanidx)->minscantime =
			    cpu_to_le16(scandur);
			(pscanchanlist + chanidx)->maxscantime =
			    cpu_to_le16(scandur);
		}

		/* Check if we are only scanning the current channel */
		if ((chanidx == 1) && (puserscanin->chanlist[0].channumber
				       ==
				       priv->adapter->curbssparams.channel)) {