/* $NetBSD: ofctl.c,v 1.14 2018/05/28 12:42:45 wiz Exp $ */ /*- * Copyright (c) 2006, 2007 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Matt Thomas. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #ifndef lint __COPYRIGHT("@(#) Copyright (c) 2006, 2007\ The NetBSD Foundation, Inc. All rights reserved."); __RCSID("$NetBSD: ofctl.c,v 1.14 2018/05/28 12:42:45 wiz Exp $"); #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include static void oflist(int, const char *, int, void *, size_t); static void ofprop(int); static void ofgetprop(int, const char *); #if 0 static int isstrprint(const char *, size_t, int); #endif static int lflag; static int pflag; static int vflag; struct of_node { TAILQ_ENTRY(of_node) of_sibling; TAILQ_HEAD(,of_node) of_children; TAILQ_HEAD(,of_prop) of_properties; struct of_node *of_parent; struct of_prop *of_name; struct of_prop *of_device_type; struct of_prop *of_reg; int of_nodeid; }; struct of_prop { TAILQ_ENTRY(of_prop) prop_sibling; char *prop_name; u_int8_t *prop_data; size_t prop_length; size_t prop_namelen; }; struct of_node of_root; unsigned long of_node_count; unsigned long of_prop_count; prop_dictionary_t of_proplib; int OF_parent(int); int OF_child(int); int OF_peer(int); int OF_finddevice(const char *); int OF_getproplen(int, const char *); int OF_getprop(int, const char *, void *, size_t); int OF_nextprop(int, const char *, void *); struct of_prop *of_tree_getprop(int, const char *); static int of_fd = -1; static void of_tree_mkprop(struct of_node *node, prop_dictionary_t propdict, prop_dictionary_keysym_t key) { struct of_prop *prop; prop_data_t obj; const char *name; name = prop_dictionary_keysym_cstring_nocopy(key); obj = prop_dictionary_get_keysym(propdict, key); prop = malloc(sizeof(*prop) + strlen(name) + 1); if (prop == NULL) err(1, "malloc(%zu)", sizeof(*prop) + strlen(name) + 1); memset(prop, 0, sizeof(*prop)); prop->prop_name = (char *) (prop + 1); prop->prop_namelen = strlen(name); memcpy(prop->prop_name, name, prop->prop_namelen+1); TAILQ_INSERT_TAIL(&node->of_properties, prop, prop_sibling); if (!strcmp(name, "name")) node->of_name = prop; else if (!strcmp(name, "device_type")) node->of_device_type = prop; else if (!strcmp(name, "reg")) node->of_reg = prop; of_prop_count++; prop->prop_length = prop_data_size(obj); if (prop->prop_length) prop->prop_data = prop_data_data(obj); } static struct of_node * of_tree_mknode(struct of_node *parent) { struct of_node *newnode; newnode = malloc(sizeof(*newnode)); if (newnode == NULL) err(1, "malloc(%zu)", sizeof(*newnode)); of_node_count++; memset(newnode, 0, sizeof(*newnode)); TAILQ_INIT(&newnode->of_children); TAILQ_INIT(&newnode->of_properties); newnode->of_parent = parent; TAILQ_INSERT_TAIL(&parent->of_children, newnode, of_sibling); return newnode; } static void of_tree_fill(prop_dictionary_t dict, struct of_node *node) { prop_dictionary_t propdict; prop_array_t propkeys; prop_array_t children; unsigned int i, count; node->of_nodeid = prop_number_unsigned_integer_value( prop_dictionary_get(dict, "node")); propdict = prop_dictionary_get(dict, "properties"); propkeys = prop_dictionary_all_keys(propdict); count = prop_array_count(propkeys); for (i = 0; i < count; i++) of_tree_mkprop(node, propdict, prop_array_get(propkeys, i)); children = prop_dictionary_get(dict, "children"); if (children) { count = prop_array_count(children); for (i = 0; i < count; i++) { of_tree_fill( prop_array_get(children, i), of_tree_mknode(node)); } } } static void of_tree_init(prop_dictionary_t dict) { /* * Initialize the root node of the OFW tree. */ TAILQ_INIT(&of_root.of_children); TAILQ_INIT(&of_root.of_properties); of_tree_fill(dict, &of_root); } static prop_object_t of_proplib_mkprop(int fd, int nodeid, char *name) { struct ofiocdesc ofio; prop_object_t obj; ofio.of_nodeid = nodeid; ofio.of_name = name; ofio.of_namelen = strlen(name); ofio.of_buf = NULL; ofio.of_buflen = 32; again: if (ofio.of_buf != NULL) free(ofio.of_buf); ofio.of_buf = malloc(ofio.of_buflen); if (ofio.of_buf == NULL) err(1, "malloc(%d)", ofio.of_buflen); if (ioctl(fd, OFIOCGET, &ofio) < 0) { if (errno == ENOMEM) { ofio.of_buflen *= 2; goto again; } warn("OFIOCGET(%d, \"%s\")", fd, name); free(ofio.of_buf); return NULL; } obj = prop_data_create_data(ofio.of_buf, ofio.of_buflen); free(ofio.of_buf); return obj; } static prop_dictionary_t of_proplib_tree_fill(int fd, int nodeid) { int childid = nodeid; struct ofiocdesc ofio; char namebuf[33]; char newnamebuf[33]; prop_array_t children; prop_dictionary_t dict, propdict; prop_object_t obj; ofio.of_nodeid = nodeid; ofio.of_name = namebuf; ofio.of_namelen = 1; ofio.of_buf = newnamebuf; namebuf[0] = '\0'; dict = prop_dictionary_create(); prop_dictionary_set(dict, "node", prop_number_create_unsigned_integer(nodeid)); propdict = prop_dictionary_create(); for (;;) { ofio.of_buflen = sizeof(newnamebuf); if (ioctl(fd, OFIOCNEXTPROP, &ofio) < 0) { if (errno == ENOENT) break; err(1, "OFIOCNEXTPROP(%d, %#x, \"%s\")", fd, ofio.of_nodeid, ofio.of_name); } ofio.of_namelen = ofio.of_buflen; if (ofio.of_namelen == 0) break; newnamebuf[ofio.of_buflen] = '\0'; strcpy(namebuf, newnamebuf); obj = of_proplib_mkprop(fd, nodeid, namebuf); if (obj) prop_dictionary_set(propdict, namebuf, obj); } prop_dictionary_set(dict, "properties", propdict); if (ioctl(fd, OFIOCGETCHILD, &childid) < 0) err(1, "OFIOCGETCHILD(%d, %#x)", fd, childid); children = NULL; while (childid != 0) { if (children == NULL) children = prop_array_create(); prop_array_add(children, of_proplib_tree_fill(fd, childid)); if (ioctl(fd, OFIOCGETNEXT, &childid) < 0) err(1, "OFIOCGETNEXT(%d, %#x)", fd, childid); } if (children != NULL) { prop_array_make_immutable(children); prop_dictionary_set(dict, "children", children); } return dict; } static prop_dictionary_t of_proplib_init(const char *file) { prop_dictionary_t dict; int rootid = 0; int fd; fd = open(file, O_RDONLY); if (fd < 0) err(1, "%s", file); if (ioctl(fd, OFIOCGETNEXT, &rootid) < 0) err(1, "OFIOCGETNEXT(%d, %#x)", fd, rootid); dict = of_proplib_tree_fill(fd, rootid); /* keep the device open for the benefit of OF_finddevice */ of_fd = fd; return dict; } static struct of_node * of_tree_walk(struct of_node *node, struct of_node *(*fn)(struct of_node *, const void *), const void *ctx) { struct of_node *child, *match; if ((match = (*fn)(node, ctx)) != NULL) return match; TAILQ_FOREACH(child, &node->of_children, of_sibling) { if ((match = of_tree_walk(child, fn, ctx)) != NULL) return match; } return NULL; } static struct of_node * of_match_by_nodeid(struct of_node *node, const void *ctx) { return (node->of_nodeid == *(const int *) ctx) ? node : NULL; } static struct of_node * of_match_by_parentid(struct of_node *node, const void *ctx) { if (node->of_parent == NULL) return NULL; return (node->of_parent->of_nodeid == *(const int *) ctx) ? node : NULL; } int OF_parent(int childid) { struct of_node *child; if (childid == 0) return 0; child = of_tree_walk(&of_root, of_match_by_nodeid, &childid); if (child == NULL || child->of_parent == NULL) return 0; return child->of_parent->of_nodeid; } int OF_child(int parentid) { struct of_node *child; child = of_tree_walk(&of_root, of_match_by_parentid, &parentid); if (child == NULL) return 0; return child->of_nodeid; } int OF_peer(int peerid) { struct of_node *node, *match; if (peerid == 0) return of_root.of_nodeid; node = of_tree_walk(&of_root, of_match_by_nodeid, &peerid); if (node == NULL || node->of_parent == NULL) return 0; /* * The peer should be our next sibling (if one exists). */ match = TAILQ_NEXT(node, of_sibling); return (match != NULL) ? match->of_nodeid : 0; } int OF_finddevice(const char *name) { struct ofiocdesc ofio; ofio.of_nodeid = 0; ofio.of_name = __UNCONST(name); ofio.of_namelen = strlen(name); ofio.of_buf = NULL; ofio.of_buflen = 0; if (ioctl(of_fd, OFIOCFINDDEVICE, &ofio) < 0) { if (errno == ENOENT) { err(1, "OF node '%s' not found", name); } else { err(1, "OFIOCFINDDEVICE(%d, \"%s\")", of_fd, name); } } return ofio.of_nodeid; } struct of_prop * of_tree_getprop(int nodeid, const char *name) { struct of_node *node; struct of_prop *prop; if (nodeid == 0) return 0; node = of_tree_walk(&of_root, of_match_by_nodeid, &nodeid); if (node == NULL) return NULL; if (name[0] == '\0') return TAILQ_FIRST(&node->of_properties); if (!strcmp(name, "name")) return node->of_name; if (!strcmp(name, "device_type")) return node->of_device_type; if (!strcmp(name, "reg")) return node->of_reg; TAILQ_FOREACH(prop, &node->of_properties, prop_sibling) { if (!strcmp(name, prop->prop_name)) break; } return prop; } int OF_getproplen(int nodeid, const char *name) { struct of_prop *prop = of_tree_getprop(nodeid, name); return (prop != NULL) ? (int)prop->prop_length : -1; } int OF_getprop(int nodeid, const char *name, void *buf, size_t len) { struct of_prop *prop = of_tree_getprop(nodeid, name); if (prop == NULL) return -1; if (len > prop->prop_length) len = prop->prop_length; memcpy(buf, prop->prop_data, len); return len; } int OF_nextprop(int nodeid, const char *name, void *nextname) { struct of_prop *prop = of_tree_getprop(nodeid, name); if (prop == NULL) return -1; if (name[0] != '\0') { prop = TAILQ_NEXT(prop, prop_sibling); if (prop == NULL) return -1; } strcpy(nextname, prop->prop_name); return strlen(prop->prop_name); } static u_int32_t of_decode_int(const u_int8_t *p) { return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; } /* * Now we start the real program */ int main(int argc, char **argv) { u_long of_buf[256]; char device_type[33]; int phandle; int errflag = 0; int c; int len; #if defined(__sparc__) || defined(__sparc64__) const char *file = "/dev/openprom"; #else const char *file = "/dev/openfirm"; #endif const char *propfilein = NULL; const char *propfileout = NULL; while ((c = getopt(argc, argv, "f:lpr:vw:")) != EOF) { switch (c) { case 'l': lflag++; break; case 'p': pflag++; break; case 'v': vflag++; break; case 'f': file = optarg; break; case 'r': propfilein = optarg; break; case 'w': propfileout = optarg; break; default: errflag++; break; } } if (errflag) errx(1, "usage: ofctl [-lpv] [-f file] [-r propfile] [-w propfile] [node...]"); if (propfilein != NULL) { of_proplib = prop_dictionary_internalize_from_file(propfilein); } else { of_proplib = of_proplib_init(file); } if (propfileout) prop_dictionary_externalize_to_file(of_proplib, propfileout); of_tree_init(of_proplib); printf("[Caching %lu nodes and %lu properties]\n", of_node_count, of_prop_count); if (argc == optind) { phandle = OF_peer(0); device_type[0] = '\0'; len = OF_getprop(phandle, "device_type", device_type, sizeof(device_type)); if (len <= 0) len = OF_getprop(phandle, "name", device_type, sizeof(device_type)); if (len >= 0) device_type[len] = '\0'; oflist(phandle, device_type, 0, of_buf, sizeof(of_buf)); } else { phandle = OF_finddevice(argv[optind++]); device_type[0] = '\0'; len = OF_getprop(phandle, "device_type", device_type, sizeof(device_type)); if (len <= 0) len = OF_getprop(phandle, "name", device_type, sizeof(device_type)); if (len >= 0) device_type[len] = '\0'; if (argc == optind) { if (lflag) oflist(phandle, device_type, 0, of_buf, sizeof(of_buf)); else ofprop(phandle); } else { for (; optind < argc; optind++) { ofgetprop(phandle, argv[optind]); } } } exit(0); } static size_t ofname(int node, char *buf, size_t buflen) { u_int8_t address_cells_buf[4]; u_int8_t reg_buf[4096]; char name[33]; char device_type[33]; size_t off = 0; int parent = OF_parent(node); int reglen; int reg[sizeof(reg_buf)/sizeof(int)]; int address_cells; int len; len = OF_getprop(node, "name", name, sizeof(name)); if (len <= 0) name[0] = '\0'; off += snprintf(buf + off, buflen - off, "/%s", name); reglen = OF_getprop(node, "reg", reg_buf, sizeof(reg_buf)); if (reglen <= 0) return off; len = OF_getprop(parent, "device_type", device_type, sizeof(device_type)); if (len <= 0) len = OF_getprop(parent, "name", device_type, sizeof(device_type)); device_type[len] = '\0'; for (;;) { len = OF_getprop(parent, "#address-cells", address_cells_buf, sizeof(address_cells_buf)); if (len >= 0) { assert(len == 4); break; } parent = OF_parent(parent); if (parent == 0) break; } if (parent == 0) { parent = OF_parent(node); for (;;) { len = OF_getprop(parent, "#size-cells", address_cells_buf, sizeof(address_cells_buf)); if (len >= 0) { assert(len == 4); break; } parent = OF_parent(parent); if (parent == 0) break; } /* no #size-cells */ len = 0; } if (len == 0) { /* looks like we're on an OBP2 system */ if (reglen > 12) return off; off += snprintf(buf + off, buflen - off, "@"); memcpy(reg, reg_buf, 8); off += snprintf(buf + off, buflen - off, "%x,%x", reg[0], reg[1]); return off; } off += snprintf(buf + off, buflen - off, "@"); address_cells = of_decode_int(address_cells_buf); for (len = 0; len < address_cells; len ++) reg[len] = of_decode_int(®_buf[len * 4]); if (!strcmp(device_type,"pci")) { off += snprintf(buf + off, buflen - off, "%x", (reg[0] >> 11) & 31); if (reg[0] & 0x700) off += snprintf(buf + off, buflen - off, ",%x", (reg[0] >> 8) & 7); } else if (!strcmp(device_type,"upa")) { off += snprintf(buf + off, buflen - off, "%x", (reg[0] >> 4) & 63); for (len = 1; len < address_cells; len++) off += snprintf(buf + off, buflen - off, ",%x", reg[len]); #if !defined(__sparc__) && !defined(__sparc64__) } else if (!strcmp(device_type,"isa")) { #endif } else { off += snprintf(buf + off, buflen - off, "%x", reg[0]); for (len = 1; len < address_cells; len++) off += snprintf(buf + off, buflen - off, ",%x", reg[len]); } return off; } static size_t offullname2(int node, char *buf, size_t len) { size_t off; int parent = OF_parent(node); if (parent == 0) return 0; off = offullname2(parent, buf, len); off += ofname(node, buf + off, len - off); return off; } static size_t offullname(int node, char *buf, size_t len) { if (node == OF_peer(0)) { size_t off = snprintf(buf, len, "/"); off += OF_getprop(node, "name", buf + off, len - off); return off; } return offullname2(node, buf, len); } static void oflist(int node, const char *parent_device_type, int depth, void *of_buf, size_t of_buflen) { int len; while (node != 0) { int child; if (pflag == 0 && vflag == 0) { len = ofname(node, of_buf, of_buflen-1); printf("%08x: %*s%s", node, depth * 2, "", (char *) of_buf); } else { len = offullname(node, of_buf, of_buflen-1); printf("%08x: %s", node, (char *) of_buf); } putchar('\n'); if (pflag) { putchar('\n'); ofprop(node); puts("\n----------------------------------------" "----------------------------------------\n\n"); } child = OF_child(node); if (child != -1 && child != 0) { char device_type[33]; len = OF_getprop(node, "device_type", device_type, sizeof(device_type)); if (len <= 0) len = OF_getprop(node, "name", device_type, sizeof(device_type)); if (len >= 0) device_type[len] = '\0'; depth++; oflist(child, device_type, depth, of_buf, of_buflen); depth--; } if (depth == 0) break; node = OF_peer(node); } } static void print_line(const u_int8_t *buf, size_t off, size_t len) { if (len - off > 16) len = off + 16; for (; off < ((len + 15) & ~15); off++) { if (off > 0) { if ((off & 15) == 0) printf("%12s%04lx:%7s", "", (unsigned long int) off, ""); else if ((off & 3) == 0) putchar(' '); } if (off < len) printf("%02x", buf[off]); #if 0 else if (off >= ((len + 3) & ~3)) printf(" "); #endif else printf(".."); } } static void default_format(int node, const u_int8_t *buf, size_t len) { size_t off = 0; while (off < len) { size_t end; print_line(buf, off, len); printf(" "); /* 24 + 32 + 3 = 59, so +3 makes 62 */ end = len; if (end > off + 16) end = off + 16; for (; off < end; off++) { char ch = buf[off]; if (isascii(ch) && (isalnum((int)ch) || ispunct((int)ch) || ch == ' ')) putchar(ch); else putchar('.'); } putchar('\n'); } } static void reg_format(int node, const u_int8_t *buf, size_t len) { /* parent = OF_parent(node); */ default_format(node, buf, len); } static void frequency_format(int node, const u_int8_t *buf, size_t len) { if (len == 4) { u_int32_t freq = of_decode_int(buf); u_int32_t divisor, whole, frac; const char *units = ""; print_line(buf, 0, len); for (divisor = 1000000000; divisor > 1; divisor /= 1000) { if (freq >= divisor) break; } whole = freq / divisor; if (divisor == 1) frac = 0; else frac = (freq / (divisor / 1000)) % 1000; switch (divisor) { case 1000000000: units = "GHz"; break; case 1000000: units = "MHz"; break; case 1000: units = "KHz"; break; case 1: units = "Hz"; break; } if (frac > 0) printf(" %u.%03u%s\n", whole, frac, units); else printf(" %u%s\n", whole, units); } else default_format(node, buf, len); } static void size_format(int node, const u_int8_t *buf, size_t len) { if (len == 4) { u_int32_t freq = of_decode_int(buf); u_int32_t divisor, whole, frac; const char *units = ""; print_line(buf, 0, len); for (divisor = 0x40000000; divisor > 1; divisor >>= 10) { if (freq >= divisor) break; } whole = freq / divisor; if (divisor == 1) frac = 0; else frac = (freq / (divisor >> 10)) & 1023; switch (divisor) { case 0x40000000: units = "G"; break; case 0x100000: units = "M"; break; case 0x400: units = "K"; break; case 1: units = ""; break; } if (frac > 0) printf(" %3u.%03u%s\n", whole, frac, units); else printf(" %3u%s\n", whole, units); } else default_format(node, buf, len); } static void string_format(int node, const u_int8_t *buf, size_t len) { size_t off = 0; int first_line = 1; while (off < len) { size_t string_len = 0; int leading = 1; for (; off + string_len < len; string_len++) { if (buf[off+string_len] == '\0') { string_len++; break; } } while (string_len > 0) { size_t line_len = string_len; if (line_len > 16) line_len = 16; if (!first_line) printf("%12s%04lx:%7s", "", (unsigned long int) off, ""); print_line(buf + off, 0, line_len); printf(" "); if (leading) putchar('"'); first_line = 0; leading = 0; string_len -= line_len; for (; line_len > 0; line_len--, off++) { if (buf[off] != '\0') putchar(buf[off]); } if (string_len == 0) putchar('"'); putchar('\n'); } } } static const struct { const char *prop_name; void (*prop_format)(int, const u_int8_t *, size_t); } formatters[] = { { "reg", reg_format }, #if 0 { "assigned-addresses", assigned_addresses_format }, { "ranges", ranges_format }, { "interrupt-map", interrup_map_format }, { "interrupt", interrupt_format }, #endif { "model", string_format }, { "name", string_format }, { "device_type", string_format }, { "compatible", string_format }, { "*frequency", frequency_format }, { "*-size", size_format }, { "*-cells", size_format }, { "*-entries", size_format }, { "*-associativity", size_format }, { NULL, default_format } }; static void ofgetprop(int node, const char *name) { u_int8_t of_buf[4097]; int len; int i; len = OF_getprop(node, name, of_buf, sizeof(of_buf) - 1); if (len < 0) return; of_buf[len] = '\0'; printf("%-24s", name); if (len == 0) { putchar('\n'); return; } if (strlen(name) >= 24) printf("\n%24s", ""); for (i = 0; formatters[i].prop_name != NULL; i++) { if (formatters[i].prop_name[0] == '*') { if (strstr(name, &formatters[i].prop_name[1]) != NULL) { (*formatters[i].prop_format)(node, of_buf, len); return; } continue; } if (strcmp(name, formatters[i].prop_name) == 0) { (*formatters[i].prop_format)(node, of_buf, len); return; } } (*formatters[i].prop_format)(node, of_buf, len); } static void ofprop(int node) { char namebuf[33]; char newnamebuf[33]; int len; namebuf[0] = '\0'; for (;;) { len = OF_nextprop(node, namebuf, newnamebuf); if (len <= 0) break; newnamebuf[len] = '\0'; strcpy(namebuf, newnamebuf); ofgetprop(node, newnamebuf); } } #if 0 static int isstrprint(const char *str, size_t len, int ignorenulls) { if (*str == '\0') return 0; for (; len-- > 0; str++) { if (*str == '\0' && len > 0 && str[1] == '\0') return 0; if (len == 0 && *str == '\0') return 1; if (ignorenulls) { if (*str == '\0') continue; if (isalnum(*str) || ispunct(*str) || *str == ' ') continue; return 0; } if (!isprint(*str)) return 0; } return 1; } #endif