X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=lib%2Fnames.c;h=a4314f61c91be1128678a8fa86df283407e20b69;hb=c0ccce1b4cd5b42b17f2e8f7bae4031c311677ff;hp=f373125f7a331801f78303b02ebe5ecad3e17c9f;hpb=ab90adc2a210b9030d4fe9b6af195feff127a7ba;p=pciutils.git diff --git a/lib/names.c b/lib/names.c index f373125..a4314f6 100644 --- a/lib/names.c +++ b/lib/names.c @@ -1,338 +1,227 @@ /* - * $Id: names.c,v 1.9 2002/03/30 15:39:25 mj Exp $ - * * The PCI Library -- ID to Name Translation * - * Copyright (c) 1997--2002 Martin Mares + * Copyright (c) 1997--2014 Martin Mares * * Can be freely distributed and used under the terms of the GNU GPL. */ #include -#include +#include #include -#include -#include -#include -#include #include "internal.h" +#include "names.h" -struct nl_entry { - struct nl_entry *next; - word id1, id2, id3, id4; - int cat; - byte *name; -}; - -#define NL_VENDOR 0 -#define NL_DEVICE 1 -#define NL_SUBSYSTEM 2 -#define NL_CLASS 3 -#define NL_SUBCLASS 4 -#define NL_PROGIF 5 - -#define HASH_SIZE 1024 - -static inline unsigned int nl_calc_hash(int cat, int id1, int id2, int id3, int id4) -{ - unsigned int h; - - h = id1 ^ id2 ^ id3 ^ id4 ^ (cat << 5); - h += (h >> 6); - return h & (HASH_SIZE-1); -} - -static struct nl_entry *nl_lookup(struct pci_access *a, int num, int cat, int id1, int id2, int id3, int id4) -{ - unsigned int h; - struct nl_entry *n; - - if (num) - return NULL; - h = nl_calc_hash(cat, id1, id2, id3, id4); - n = a->nl_hash[h]; - while (n && (n->id1 != id1 || n->id2 != id2 || n->id3 != id3 || n->id4 != id4 || n->cat != cat)) - n = n->next; - return n; -} - -static int nl_add(struct pci_access *a, int cat, int id1, int id2, int id3, int id4, byte *text) +static char *id_lookup(struct pci_access *a, int flags, int cat, int id1, int id2, int id3, int id4) { - unsigned int h = nl_calc_hash(cat, id1, id2, id3, id4); - struct nl_entry *n = a->nl_hash[h]; + char *name; + int tried_hwdb = 0; - while (n && (n->id1 != id1 || n->id2 != id2 || n->id3 != id3 || n->id4 != id4 || n->cat != cat)) - n = n->next; - if (n) - return 1; - n = pci_malloc(a, sizeof(struct nl_entry)); - n->id1 = id1; - n->id2 = id2; - n->id3 = id3; - n->id4 = id4; - n->cat = cat; - n->name = text; - n->next = a->nl_hash[h]; - a->nl_hash[h] = n; - return 0; -} - -static void -err_name_list(struct pci_access *a, char *msg) -{ - a->error("%s: %s: %s\n", a->id_file_name, msg, strerror(errno)); -} - -static void -parse_name_list(struct pci_access *a) -{ - byte *p = a->nl_list; - byte *q, *r; - int lino = 0; - unsigned int id1=0, id2=0, id3=0, id4=0; - int cat = -1; - - while (*p) + while (!(name = pci_id_lookup(a, flags, cat, id1, id2, id3, id4))) { - lino++; - q = p; - while (*p && *p != '\n') - p++; - if (*p == '\n') - *p++ = 0; - if (!*q || *q == '#') - continue; - r = p; - while (r > q && r[-1] == ' ') - *--r = 0; - r = q; - while (*q == '\t') - q++; - if (q == r) + if ((flags & PCI_LOOKUP_CACHE) && !a->id_cache_status) { - if (q[0] == 'C' && q[1] == ' ') + if (pci_id_cache_load(a, flags)) + continue; + } + if (!tried_hwdb && !(flags & (PCI_LOOKUP_SKIP_LOCAL | PCI_LOOKUP_NO_HWDB))) + { + tried_hwdb = 1; + if (name = pci_id_hwdb_lookup(a, cat, id1, id2, id3, id4)) { - if (strlen(q+2) < 3 || - q[4] != ' ' || - sscanf(q+2, "%x", &id1) != 1) - goto parserr; - cat = NL_CLASS; + pci_id_insert(a, cat, id1, id2, id3, id4, name, SRC_HWDB); + pci_mfree(name); + continue; } - else + } + if (flags & PCI_LOOKUP_NETWORK) + { + if (name = pci_id_net_lookup(a, cat, id1, id2, id3, id4)) { - if (strlen(q) < 5 || - q[4] != ' ' || - sscanf(q, "%x", &id1) != 1) - goto parserr; - cat = NL_VENDOR; + pci_id_insert(a, cat, id1, id2, id3, id4, name, SRC_NET); + pci_mfree(name); + pci_id_cache_dirty(a); } - id2 = id3 = id4 = 0; - q += 4; + else + pci_id_insert(a, cat, id1, id2, id3, id4, "", SRC_NET); + /* We want to iterate the lookup to get the allocated ID entry from the hash */ + continue; } - else if (q == r+1) - switch (cat) - { - case NL_VENDOR: - case NL_DEVICE: - case NL_SUBSYSTEM: - if (sscanf(q, "%x", &id2) != 1 || q[4] != ' ') - goto parserr; - q += 5; - cat = NL_DEVICE; - id3 = id4 = 0; - break; - case NL_CLASS: - case NL_SUBCLASS: - case NL_PROGIF: - if (sscanf(q, "%x", &id2) != 1 || q[2] != ' ') - goto parserr; - q += 3; - cat = NL_SUBCLASS; - id3 = id4 = 0; - break; - default: - goto parserr; - } - else if (q == r+2) - switch (cat) - { - case NL_DEVICE: - case NL_SUBSYSTEM: - if (sscanf(q, "%x%x", &id3, &id4) != 2 || q[9] != ' ') - goto parserr; - q += 10; - cat = NL_SUBSYSTEM; - break; - case NL_CLASS: - case NL_SUBCLASS: - case NL_PROGIF: - if (sscanf(q, "%x", &id3) != 1 || q[2] != ' ') - goto parserr; - q += 3; - cat = NL_PROGIF; - id4 = 0; - break; - default: - goto parserr; - } - else - goto parserr; - while (*q == ' ') - q++; - if (!*q) - goto parserr; - if (nl_add(a, cat, id1, id2, id3, id4, q)) - a->error("%s, line %d: duplicate entry", a->id_file_name, lino); + return NULL; } - return; - -parserr: - a->error("%s, line %d: parse error", a->id_file_name, lino); + return (name[0] ? name : NULL); } -static void -load_name_list(struct pci_access *a) +static char * +id_lookup_subsys(struct pci_access *a, int flags, int iv, int id, int isv, int isd) { - int fd; - struct stat st; - - fd = open(a->id_file_name, O_RDONLY); - if (fd < 0) - { - a->numeric_ids = 1; - return; - } - if (fstat(fd, &st) < 0) - err_name_list(a, "stat"); - a->nl_list = pci_malloc(a, st.st_size + 1); - if (read(fd, a->nl_list, st.st_size) != st.st_size) - err_name_list(a, "read"); - a->nl_list[st.st_size] = 0; - a->nl_hash = pci_malloc(a, sizeof(struct nl_entry *) * HASH_SIZE); - bzero(a->nl_hash, sizeof(struct nl_entry *) * HASH_SIZE); - parse_name_list(a); - close(fd); + char *d = NULL; + if (iv > 0 && id > 0) /* Per-device lookup */ + d = id_lookup(a, flags, ID_SUBSYSTEM, iv, id, isv, isd); + if (!d) /* Generic lookup */ + d = id_lookup(a, flags, ID_GEN_SUBSYSTEM, isv, isd, 0, 0); + if (!d && iv == isv && id == isd) /* Check for subsystem == device */ + d = id_lookup(a, flags, ID_DEVICE, iv, id, 0, 0); + return d; } -void -pci_free_name_list(struct pci_access *a) +static char * +format_name(char *buf, int size, int flags, char *name, char *num, char *unknown) { - pci_mfree(a->nl_list); - a->nl_list = NULL; - pci_mfree(a->nl_hash); - a->nl_hash = NULL; + int res; + if ((flags & PCI_LOOKUP_NO_NUMBERS) && !name) + return NULL; + else if (flags & PCI_LOOKUP_NUMERIC) + res = snprintf(buf, size, "%s", num); + else if (!name) + res = snprintf(buf, size, ((flags & PCI_LOOKUP_MIXED) ? "%s [%s]" : "%s %s"), unknown, num); + else if (!(flags & PCI_LOOKUP_MIXED)) + res = snprintf(buf, size, "%s", name); + else + res = snprintf(buf, size, "%s [%s]", name, num); + if (res >= size && size >= 4) + buf[size-2] = buf[size-3] = buf[size-4] = '.'; + else if (res < 0 || res >= size) + return ""; + return buf; } -char * -pci_lookup_name(struct pci_access *a, char *buf, int size, int flags, u32 arg1, u32 arg2, u32 arg3, u32 arg4) +static char * +format_name_pair(char *buf, int size, int flags, char *v, char *d, char *num) { - int num = a->numeric_ids; int res; - struct nl_entry *n; - + if ((flags & PCI_LOOKUP_NO_NUMBERS) && (!v || !d)) + return NULL; if (flags & PCI_LOOKUP_NUMERIC) + res = snprintf(buf, size, "%s", num); + else if (flags & PCI_LOOKUP_MIXED) + { + if (v && d) + res = snprintf(buf, size, "%s %s [%s]", v, d, num); + else if (!v) + res = snprintf(buf, size, "Device [%s]", num); + else /* v && !d */ + res = snprintf(buf, size, "%s Device [%s]", v, num); + } + else { - flags &= PCI_LOOKUP_NUMERIC; - num = 1; + if (v && d) + res = snprintf(buf, size, "%s %s", v, d); + else if (!v) + res = snprintf(buf, size, "Device %s", num); + else /* v && !d */ + res = snprintf(buf, size, "%s Device %s", v, num+5); } - if (!a->nl_hash && !num) + if (res >= size && size >= 4) + buf[size-2] = buf[size-3] = buf[size-4] = '.'; + else if (res < 0 || res >= size) + return ""; + return buf; +} + +char * +pci_lookup_name(struct pci_access *a, char *buf, int size, int flags, ...) +{ + va_list args; + char *v, *d, *cls, *pif; + int iv, id, isv, isd, icls, ipif; + char numbuf[16], pifbuf[32]; + + va_start(args, flags); + + flags |= a->id_lookup_mode; + if (!(flags & PCI_LOOKUP_NO_NUMBERS)) { - load_name_list(a); - num = a->numeric_ids; + if (a->numeric_ids > 1) + flags |= PCI_LOOKUP_MIXED; + else if (a->numeric_ids) + flags |= PCI_LOOKUP_NUMERIC; } - switch (flags) + if (flags & PCI_LOOKUP_MIXED) + flags &= ~PCI_LOOKUP_NUMERIC; + + if (!a->id_hash && !(flags & (PCI_LOOKUP_NUMERIC | PCI_LOOKUP_SKIP_LOCAL)) && !a->id_load_failed) + pci_load_name_list(a); + + switch (flags & 0xffff) { case PCI_LOOKUP_VENDOR: - if (n = nl_lookup(a, num, NL_VENDOR, arg1, 0, 0, 0)) - return n->name; - else - res = snprintf(buf, size, "%04x", arg1); - break; + iv = va_arg(args, int); + sprintf(numbuf, "%04x", iv); + va_end(args); + return format_name(buf, size, flags, id_lookup(a, flags, ID_VENDOR, iv, 0, 0, 0), numbuf, "Vendor"); case PCI_LOOKUP_DEVICE: - if (n = nl_lookup(a, num, NL_DEVICE, arg1, arg2, 0, 0)) - return n->name; - else - res = snprintf(buf, size, "%04x", arg2); - break; + iv = va_arg(args, int); + id = va_arg(args, int); + sprintf(numbuf, "%04x", id); + va_end(args); + return format_name(buf, size, flags, id_lookup(a, flags, ID_DEVICE, iv, id, 0, 0), numbuf, "Device"); case PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE: - if (!num) - { - struct nl_entry *e, *e2; - e = nl_lookup(a, 0, NL_VENDOR, arg1, 0, 0, 0); - e2 = nl_lookup(a, 0, NL_DEVICE, arg1, arg2, 0, 0); - if (!e) - res = snprintf(buf, size, "Unknown device %04x:%04x", arg1, arg2); - else if (!e2) - res = snprintf(buf, size, "%s: Unknown device %04x", e->name, arg2); - else - res = snprintf(buf, size, "%s %s", e->name, e2->name); - } - else - res = snprintf(buf, size, "%04x:%04x", arg1, arg2); - break; - case PCI_LOOKUP_VENDOR | PCI_LOOKUP_SUBSYSTEM: - if (n = nl_lookup(a, num, NL_VENDOR, arg3, 0, 0, 0)) - return n->name; - else - res = snprintf(buf, size, "%04x", arg3); - break; - case PCI_LOOKUP_DEVICE | PCI_LOOKUP_SUBSYSTEM: - if (n = nl_lookup(a, num, NL_SUBSYSTEM, arg1, arg2, arg3, arg4)) - return n->name; - else if (arg1 == arg3 && arg2 == arg4 && (n = nl_lookup(a, num, NL_DEVICE, arg1, arg2, 0, 0))) - return n->name; - else - res = snprintf(buf, size, "%04x", arg4); - break; + iv = va_arg(args, int); + id = va_arg(args, int); + sprintf(numbuf, "%04x:%04x", iv, id); + v = id_lookup(a, flags, ID_VENDOR, iv, 0, 0, 0); + d = id_lookup(a, flags, ID_DEVICE, iv, id, 0, 0); + va_end(args); + return format_name_pair(buf, size, flags, v, d, numbuf); + case PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR: + isv = va_arg(args, int); + sprintf(numbuf, "%04x", isv); + v = id_lookup(a, flags, ID_VENDOR, isv, 0, 0, 0); + va_end(args); + return format_name(buf, size, flags, v, numbuf, "Unknown vendor"); + case PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE: + iv = va_arg(args, int); + id = va_arg(args, int); + isv = va_arg(args, int); + isd = va_arg(args, int); + sprintf(numbuf, "%04x", isd); + va_end(args); + return format_name(buf, size, flags, id_lookup_subsys(a, flags, iv, id, isv, isd), numbuf, "Device"); case PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE | PCI_LOOKUP_SUBSYSTEM: - if (!num) + iv = va_arg(args, int); + id = va_arg(args, int); + isv = va_arg(args, int); + isd = va_arg(args, int); + v = id_lookup(a, flags, ID_VENDOR, isv, 0, 0, 0); + d = id_lookup_subsys(a, flags, iv, id, isv, isd); + sprintf(numbuf, "%04x:%04x", isv, isd); + va_end(args); + return format_name_pair(buf, size, flags, v, d, numbuf); + case PCI_LOOKUP_CLASS: + icls = va_arg(args, int); + sprintf(numbuf, "%04x", icls); + cls = id_lookup(a, flags, ID_SUBCLASS, icls >> 8, icls & 0xff, 0, 0); + if (!cls && (cls = id_lookup(a, flags, ID_CLASS, icls >> 8, 0, 0, 0))) { - struct nl_entry *e, *e2; - e = nl_lookup(a, 0, NL_VENDOR, arg3, 0, 0, 0); - e2 = nl_lookup(a, 0, NL_SUBSYSTEM, arg1, arg2, arg3, arg4); - if (!e2 && arg1 == arg3 && arg2 == arg4) - /* Cheat for vendors blindly setting subsystem ID same as device ID */ - e2 = nl_lookup(a, 0, NL_DEVICE, arg1, arg2, 0, 0); - if (!e) - res = snprintf(buf, size, "Unknown device %04x:%04x", arg3, arg4); - else if (!e2) - res = snprintf(buf, size, "%s: Unknown device %04x", e->name, arg4); - else - res = snprintf(buf, size, "%s %s", e->name, e2->name); + if (!(flags & PCI_LOOKUP_NUMERIC)) /* Include full class number */ + flags |= PCI_LOOKUP_MIXED; } - else - res = snprintf(buf, size, "%04x:%04x", arg3, arg4); - break; - case PCI_LOOKUP_CLASS: - if (n = nl_lookup(a, num, NL_SUBCLASS, arg1 >> 8, arg1 & 0xff, 0, 0)) - return n->name; - else if (n = nl_lookup(a, num, NL_CLASS, arg1, 0, 0, 0)) - res = snprintf(buf, size, "%s [%04x]", n->name, arg1); - else - res = snprintf(buf, size, "Class %04x", arg1); - break; + va_end(args); + return format_name(buf, size, flags, cls, numbuf, "Class"); case PCI_LOOKUP_PROGIF: - if (n = nl_lookup(a, num, NL_PROGIF, arg1 >> 8, arg1 & 0xff, arg2, 0)) - return n->name; - if (arg1 == 0x0101) + icls = va_arg(args, int); + ipif = va_arg(args, int); + sprintf(numbuf, "%02x", ipif); + pif = id_lookup(a, flags, ID_PROGIF, icls >> 8, icls & 0xff, ipif, 0); + if (!pif && icls == 0x0101 && !(ipif & 0x70)) { /* IDE controllers have complex prog-if semantics */ - if (arg2 & 0x70) - return NULL; - res = snprintf(buf, size, "%s%s%s%s%s", - (arg2 & 0x80) ? "Master " : "", - (arg2 & 0x08) ? "SecP " : "", - (arg2 & 0x04) ? "SecO " : "", - (arg2 & 0x02) ? "PriP " : "", - (arg2 & 0x01) ? "PriO " : ""); - if (res) - buf[--res] = 0; - break; + sprintf(pifbuf, "%s%s%s%s%s", + (ipif & 0x80) ? " Master" : "", + (ipif & 0x08) ? " SecP" : "", + (ipif & 0x04) ? " SecO" : "", + (ipif & 0x02) ? " PriP" : "", + (ipif & 0x01) ? " PriO" : ""); + pif = pifbuf; + if (*pif) + pif++; } - return NULL; + va_end(args); + return format_name(buf, size, flags, pif, numbuf, "ProgIf"); default: + va_end(args); return ""; } - return (res == size) ? "" : buf; }