From ff476413e30a6cf477364eeed12ed06540a8b436 Mon Sep 17 00:00:00 2001 From: Zach van Rijn Date: Thu, 7 Oct 2021 12:27:50 -0500 Subject: legacy/*: cleanup packages that can 'definitely go' --- ...upport-generating-kmod-binary-index-files.patch | 510 --------------------- 1 file changed, 510 deletions(-) delete mode 100644 legacy/busybox/0009-depmod-support-generating-kmod-binary-index-files.patch (limited to 'legacy/busybox/0009-depmod-support-generating-kmod-binary-index-files.patch') diff --git a/legacy/busybox/0009-depmod-support-generating-kmod-binary-index-files.patch b/legacy/busybox/0009-depmod-support-generating-kmod-binary-index-files.patch deleted file mode 100644 index 2034f5c88..000000000 --- a/legacy/busybox/0009-depmod-support-generating-kmod-binary-index-files.patch +++ /dev/null @@ -1,510 +0,0 @@ -From d13cb44f10d730eeac83340f71ea95b6faa0c142 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Timo=20Ter=C3=A4s?= -Date: Sun, 25 Oct 2015 22:21:41 +0200 -Subject: [PATCH 09/16] depmod: support generating kmod binary index files - -This allows to use busybox depmod, and run daemons using libkmod (or -even kmod modprobe if needed). - -About +1500 bytes when enabled. This patch merges some depmod code -paths, so when this is disabled it shrinks the code size a little bit. ---- - modutils/Config.src | 9 ++ - modutils/depmod.c | 281 ++++++++++++++++++++++++++++++++++++++++++---------- - modutils/modprobe.c | 15 --- - modutils/modutils.c | 31 ++++++ - modutils/modutils.h | 16 +++ - 5 files changed, 286 insertions(+), 66 deletions(-) - -diff --git a/modutils/Config.src b/modutils/Config.src -index e413702bb..1be7434a5 100644 ---- a/modutils/Config.src -+++ b/modutils/Config.src -@@ -152,6 +152,15 @@ config FEATURE_MODUTILS_ALIAS - - Say Y if unsure. - -+config FEATURE_MODUTILS_BIN -+ bool "Support for the kmod .bin file format" -+ default n -+ depends on DEPMOD && !MODPROBE_SMALL -+ help -+ Generate kmod compatible binary index files for .dep, .alias, -+ .symbols and .builtin files. Allows mixing use of busybox -+ modutils and kmod (binaries and library). -+ - config FEATURE_MODUTILS_SYMBOLS - bool "Support module.symbols file" - default y -diff --git a/modutils/depmod.c b/modutils/depmod.c -index 004c67a11..05c1a9bce 100644 ---- a/modutils/depmod.c -+++ b/modutils/depmod.c -@@ -2,7 +2,7 @@ - /* - * depmod - generate modules.dep - * Copyright (c) 2008 Bernhard Reutner-Fischer -- * Copyrihgt (c) 2008 Timo Teras -+ * Copyrihgt (c) 2008-2015 Timo Teras - * Copyright (c) 2008 Vladimir Dronnikov - * - * Licensed under GPLv2 or later, see file LICENSE in this source tree. -@@ -26,6 +26,24 @@ - #include "modutils.h" - #include /* uname() */ - -+#define INDEX_MINCHAR 32 -+#define INDEX_MAXCHAR 128 -+ -+typedef struct index_node { -+ char *prefix; -+ llist_t *values; -+ struct index_node *children[INDEX_MAXCHAR-INDEX_MINCHAR]; -+} index_node; -+ -+struct globals { -+ module_db db; -+ index_node *root_node; -+} FIX_ALIASING; -+#define G (*ptr_to_globals) -+#define INIT_G() do { \ -+ SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \ -+} while (0) -+ - /* - * Theory of operation: - * - iterate over all modules and record their full path -@@ -53,18 +71,12 @@ static int FAST_FUNC parse_module(const char *fname, struct stat *sb UNUSED_PARA - - for (ptr = image; ptr < image + len - 10; ptr++) { - if (is_prefixed_with(ptr, "depends=")) { -- char *u; -- - ptr += 8; -- for (u = ptr; *u; u++) -- if (*u == '-') -- *u = '_'; -- ptr += string_to_llist(ptr, &e->deps, ","); -+ string_to_llist(replace_underscores(ptr), &e->deps, ","); - } else if (ENABLE_FEATURE_MODUTILS_ALIAS - && is_prefixed_with(ptr, "alias=") - ) { -- llist_add_to(&e->aliases, xstrdup(ptr + 6)); -- ptr += strlen(ptr); -+ llist_add_to(&e->aliases, replace_underscores(xstrdup(ptr + 6))); - } else if (ENABLE_FEATURE_MODUTILS_SYMBOLS - && is_prefixed_with(ptr, "__ksymtab_") - ) { -@@ -74,9 +86,10 @@ static int FAST_FUNC parse_module(const char *fname, struct stat *sb UNUSED_PARA - ) { - continue; - } -- llist_add_to(&e->symbols, xstrdup(ptr)); -- ptr += strlen(ptr); -- } -+ llist_add_to(&e->symbols, xasprintf("symbol:%s", ptr)); -+ } else -+ continue; -+ ptr += strlen(ptr); - } - free(image); - -@@ -108,12 +121,6 @@ static void order_dep_list(module_db *modules, module_entry *start, llist_t *add - } - } - --static void xfreopen_write(const char *file, FILE *f) --{ -- if (freopen(file, "w", f) == NULL) -- bb_perror_msg_and_die("can't open '%s'", file); --} -- - //usage:#if !ENABLE_MODPROBE_SMALL - //usage:#define depmod_trivial_usage "[-n] [-b BASE] [VERSION] [MODFILES]..." - //usage:#define depmod_full_usage "\n\n" -@@ -167,6 +174,169 @@ enum { - OPT_C = (1 << 9), /* -C,--config etc_modules_conf: ignored */ - }; - -+/* Support for the mod binary index generation */ -+ -+static void index_init(const char *filename) -+{ -+ if (ENABLE_FEATURE_MODUTILS_BIN) { -+ index_node *n; -+ -+ n = xzalloc(sizeof(index_node)); -+ n->prefix = xstrdup(""); -+ G.root_node = n; -+ } -+ -+ if (filename && !(option_mask32 & OPT_n)) { -+ if (freopen(filename, "w", stdout) == NULL) -+ bb_perror_msg_and_die("can't open '%s'", filename); -+ } -+} -+ -+static void index_add(const char *key, char *value, const char *prefix) -+{ -+ if (prefix && *prefix) -+ printf("%s%s %s\n", prefix, key, value); -+ else if (prefix) -+ printf("%s\n", value); -+ -+ if (ENABLE_FEATURE_MODUTILS_BIN) { -+ index_node *cur = G.root_node, *n; -+ unsigned i = 0, j, ch; -+ -+ while (1) { -+ /* Ensure node->prefix is a prefix of &str[i]. -+ * If it is not already, then we must split node. */ -+ for (j = 0; cur->prefix[j]; j++) { -+ ch = cur->prefix[j]; -+ if (ch != key[i+j]) { -+ /* New child is copy of node with prefix[j+1..N] */ -+ n = xzalloc(sizeof(index_node)); -+ n->prefix = xstrdup(&cur->prefix[j+1]); -+ n->values = cur->values; -+ memcpy(n->children, cur->children, sizeof(n->children)); -+ -+ /* Parent has prefix[0..j], child at prefix[j] */ -+ cur->prefix[j] = '\0'; -+ cur->values = NULL; -+ memset(cur->children, 0, sizeof(cur->children)); -+ cur->children[ch-INDEX_MINCHAR] = n; -+ break; -+ } -+ } -+ i += j; -+ -+ ch = key[i]; -+ if (ch == 0) -+ break; -+ -+ if (ch < INDEX_MINCHAR || ch >= INDEX_MAXCHAR) -+ bb_error_msg_and_die("bad module name"); -+ -+ ch -= INDEX_MINCHAR; -+ if (!cur->children[ch]) { -+ n = xzalloc(sizeof(index_node)); -+ cur->children[ch] = n; -+ n->prefix = xstrdup(&key[i+1]); -+ cur = n; -+ break; -+ } -+ -+ /* Descend into child node and continue */ -+ cur = cur->children[ch]; -+ i++; -+ } -+ -+ llist_add_to(&cur->values, value); -+ } -+} -+ -+static uint32_t index_write_node(FILE *out, index_node *n, void (*freeit)(void *data)) -+{ -+ uint32_t child_offs[INDEX_MAXCHAR-INDEX_MINCHAR]; -+ uint32_t offset; -+ uint8_t first = 255, last = 0; -+ unsigned i; -+ -+ for (i = 0; i < INDEX_MAXCHAR-INDEX_MINCHAR; i++) { -+ child_offs[i] = 0; -+ if (!n->children[i]) -+ continue; -+ child_offs[i] = index_write_node(out, n->children[i], freeit); -+ if (first > INDEX_MAXCHAR) -+ first = i; -+ last = i; -+ } -+ -+ offset = ftell(out); -+ -+ if (n->prefix[0]) { -+ fputs(n->prefix, out); -+ fputc('\0', out); -+ offset |= INDEX_NODE_PREFIX; -+ } -+ -+ if (first < INDEX_MAXCHAR) { -+ fputc(first + INDEX_MINCHAR, out); -+ fputc(last + INDEX_MINCHAR, out); -+ fwrite(child_offs + first, sizeof(uint32_t), last - first + 1, out); -+ offset |= INDEX_NODE_CHILDS; -+ } -+ -+ if (n->values) { -+ const llist_t *v; -+ unsigned int cnt; -+ uint32_t u; -+ -+ n->values = llist_rev(n->values); -+ for (v = n->values, cnt = 0; v != NULL; v = v->link, cnt++); -+ u = htonl(cnt); -+ fwrite(&u, sizeof(u), 1, out); -+ for (v = n->values, cnt = 0; v != NULL; v = v->link, cnt++) { -+ u = htonl(cnt); -+ fwrite(&u, sizeof(u), 1, out); -+ fputs(v->data, out); -+ fputc('\0', out); -+ } -+ offset |= INDEX_NODE_VALUES; -+ } -+ -+ llist_free(n->values, freeit); -+ free(n->prefix); -+ free(n); -+ -+ return htonl(offset); -+} -+ -+static void index_dump(const char *filename, int deps_file) -+{ -+ if (ENABLE_FEATURE_MODUTILS_BIN) { -+ FILE *out; -+ uint32_t header[3] = { -+ htonl(INDEX_MAGIC), -+ htonl(INDEX_VERSION), -+ }; -+ -+ if (option_mask32 & OPT_n) -+ filename = "/dev/null"; -+ else -+ filename = xasprintf("tmp.%s.bin", filename); -+ -+ out = xfopen_for_write(filename); -+ fwrite(header, sizeof(uint32_t), 3, out); -+ header[2] = index_write_node(out, G.root_node, deps_file ? free : 0); -+ rewind(out); -+ G.root_node = NULL; -+ fwrite(header, sizeof(uint32_t), 3, out); -+ if (fclose(out)) { -+ remove(filename); -+ bb_error_msg_and_die(bb_msg_write_error); -+ } -+ /* .bin files are mmap'ed; not renaming it may crash -+ * long standing daemon using libkmod */ -+ rename_or_warn(filename, filename + 4); -+ } -+} -+ - int depmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; - int depmod_main(int argc UNUSED_PARAM, char **argv) - { -@@ -178,6 +348,8 @@ int depmod_main(int argc UNUSED_PARAM, char **argv) - unsigned i; - int tmp; - -+ INIT_G(); -+ - getopt32(argv, "aAb:eF:nruqC:", &moddir_base, NULL, NULL); - argv += optind; - -@@ -210,53 +382,60 @@ int depmod_main(int argc UNUSED_PARAM, char **argv) - } - - /* Generate dependency and alias files */ -- if (!(option_mask32 & OPT_n)) -- xfreopen_write(CONFIG_DEFAULT_DEPMOD_FILE, stdout); -- -+ index_init(CONFIG_DEFAULT_DEPMOD_FILE); - moddb_foreach_module(&modules, m, i) { -- printf("%s:", m->name); -- -+ char *buf = xasprintf("%s:", m->name); - order_dep_list(&modules, m, m->deps); -+ - while (m->dnext != m) { - dep = m->dnext; -- printf(" %s", dep->name); -- -+ buf = gather_options_str(buf, dep->name); - /* unlink current entry */ - dep->dnext->dprev = dep->dprev; - dep->dprev->dnext = dep->dnext; - dep->dnext = dep->dprev = dep; - } -- bb_putchar('\n'); -+ index_add(m->modname, buf, ""); - } -- --#if ENABLE_FEATURE_MODUTILS_ALIAS -- if (!(option_mask32 & OPT_n)) -- xfreopen_write("modules.alias", stdout); -- moddb_foreach_module(&modules, m, i) { -- while (m->aliases) { -- /* -- * Last word used to be a basename -- * (filename with path and .ko.* stripped) -- * at the time of module-init-tools 3.4. -- * kmod v.12 uses module name, i.e., s/-/_/g. -- */ -- printf("alias %s %s\n", -- (char*)llist_pop(&m->aliases), -- m->modname); -+ index_dump(CONFIG_DEFAULT_DEPMOD_FILE, 1); -+ -+ if (ENABLE_FEATURE_MODUTILS_ALIAS) { -+ index_init("modules.alias"); -+ moddb_foreach_module(&modules, m, i) { -+ while (m->aliases) { -+ /* -+ * Last word used to be a basename -+ * (filename with path and .ko.* stripped) -+ * at the time of module-init-tools 3.4. -+ * kmod v.12 uses module name, i.e., s/-/_/g. -+ */ -+ index_add((char*)llist_pop(&m->aliases), m->modname, "alias "); -+ } - } -+ index_dump("modules.alias", 0); - } --#endif --#if ENABLE_FEATURE_MODUTILS_SYMBOLS -- if (!(option_mask32 & OPT_n)) -- xfreopen_write("modules.symbols", stdout); -- moddb_foreach_module(&modules, m, i) { -- while (m->symbols) { -- printf("alias symbol:%s %s\n", -- (char*)llist_pop(&m->symbols), -- m->modname); -+ if (ENABLE_FEATURE_MODUTILS_SYMBOLS) { -+ index_init("modules.symbols"); -+ moddb_foreach_module(&modules, m, i) { -+ while (m->symbols) { -+ index_add((char*)llist_pop(&m->symbols), m->modname, "alias "); -+ } -+ } -+ index_dump("modules.symbols", 0); -+ } -+ if (ENABLE_FEATURE_MODUTILS_BIN) { -+ char line[PATH_MAX], modname[MODULE_NAME_LEN]; -+ FILE *in; -+ -+ index_init(NULL); -+ in = xfopen_for_read("modules.builtin"); -+ while (fgets(line, sizeof(line), in) != NULL) { -+ filename2modname(line, modname); -+ index_add(modname, (char *) "", 0); - } -+ fclose(in); -+ index_dump("modules.builtin", 0); - } --#endif - - if (ENABLE_FEATURE_CLEAN_UP) - moddb_free(&modules); -diff --git a/modutils/modprobe.c b/modutils/modprobe.c -index 59f6d54f3..0a398a60f 100644 ---- a/modutils/modprobe.c -+++ b/modutils/modprobe.c -@@ -192,21 +192,6 @@ struct globals { - - static int read_config(const char *path); - --static char *gather_options_str(char *opts, const char *append) --{ -- /* Speed-optimized. We call gather_options_str many times. */ -- if (append) { -- if (opts == NULL) { -- opts = xstrdup(append); -- } else { -- int optlen = strlen(opts); -- opts = xrealloc(opts, optlen + strlen(append) + 2); -- sprintf(opts + optlen, " %s", append); -- } -- } -- return opts; --} -- - static struct module_entry *get_or_add_modentry(const char *module) - { - return moddb_get_or_create(&G.db, module); -diff --git a/modutils/modutils.c b/modutils/modutils.c -index 6f7cd9721..257089af4 100644 ---- a/modutils/modutils.c -+++ b/modutils/modutils.c -@@ -66,6 +66,21 @@ void FAST_FUNC moddb_free(module_db *db) - } - } - -+char * FAST_FUNC gather_options_str(char *opts, const char *append) -+{ -+ /* Speed-optimized. We call gather_options_str many times. */ -+ if (append) { -+ if (opts == NULL) { -+ opts = xstrdup(append); -+ } else { -+ int optlen = strlen(opts); -+ opts = xrealloc(opts, optlen + strlen(append) + 2); -+ sprintf(opts + optlen, " %s", append); -+ } -+ } -+ return opts; -+} -+ - void FAST_FUNC replace(char *s, char what, char with) - { - while (*s) { -@@ -75,6 +90,22 @@ void FAST_FUNC replace(char *s, char what, char with) - } - } - -+char* FAST_FUNC replace_underscores(char *s) -+{ -+ int i; -+ for (i = 0; s[i]; i++) { -+ switch (s[i]) { -+ case '-': -+ s[i] = '_'; -+ break; -+ case '[': -+ i += strcspn(&s[i], "]"); -+ break; -+ } -+ } -+ return s; -+} -+ - int FAST_FUNC string_to_llist(char *string, llist_t **llist, const char *delim) - { - char *tok; -diff --git a/modutils/modutils.h b/modutils/modutils.h -index 4a702e97c..73e816028 100644 ---- a/modutils/modutils.h -+++ b/modutils/modutils.h -@@ -18,6 +18,20 @@ PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN - #define MODULE_NAME_LEN 256 - #define MODULE_HASH_SIZE 256 - -+/* .bin index format definitions */ -+#define INDEX_MAGIC 0xB007F457 -+#define INDEX_VERSION_MAJOR 0x0002 -+#define INDEX_VERSION_MINOR 0x0001 -+#define INDEX_VERSION ((INDEX_VERSION_MAJOR<<16)|INDEX_VERSION_MINOR) -+ -+enum node_offset { -+ INDEX_NODE_FLAGS = 0xF0000000, /* Flags in high nibble */ -+ INDEX_NODE_PREFIX = 0x80000000, -+ INDEX_NODE_VALUES = 0x40000000, -+ INDEX_NODE_CHILDS = 0x20000000, -+ INDEX_NODE_MASK = 0x0FFFFFFF, /* Offset value */ -+}; -+ - typedef struct module_entry { - struct module_entry *next; - char *name, *modname; -@@ -47,7 +61,9 @@ module_entry *moddb_get(module_db *db, const char *s) FAST_FUNC; - module_entry *moddb_get_or_create(module_db *db, const char *s) FAST_FUNC; - void moddb_free(module_db *db) FAST_FUNC; - -+char *gather_options_str(char *opts, const char *append) FAST_FUNC; - void replace(char *s, char what, char with) FAST_FUNC; -+char *replace_underscores(char *s) FAST_FUNC; - int string_to_llist(char *string, llist_t **llist, const char *delim) FAST_FUNC; - char *filename2modname(const char *filename, char *modname) FAST_FUNC; - #if ENABLE_FEATURE_CMDLINE_MODULE_OPTIONS --- -2.16.2 - -- cgit v1.2.3-60-g2f50