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systemd-gtk
0001-add-sparse-support-to-detect-endianness-bu...
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File 0001-add-sparse-support-to-detect-endianness-bug.patch of Package systemd-gtk
From 7644bc8665f39a6428049e81e8c04e4d755e55a1 Mon Sep 17 00:00:00 2001 From: Frederic Crozat <fcrozat@suse.com> Date: Fri, 16 Mar 2012 11:59:04 +0100 Subject: [PATCH] add sparse support to detect endianness bug le16/32/64_t type should be used when storing little-endian value header to integrate with sparse from Josh Triplett <josh@joshtriplett.org> --- src/journal/journal-def.h | 74 +++++++++++++++++----------------- src/journal/journal-file.c | 15 ++++--- src/journal/journal-internal.h | 2 +- src/journal/journald.c | 5 +- src/journal/sd-journal.c | 10 +++-- src/journal/sparse-endian.h | 87 ++++++++++++++++++++++++++++++++++++++++ 6 files changed, 142 insertions(+), 51 deletions(-) create mode 100644 src/journal/sparse-endian.h diff --git a/src/journal/journal-def.h b/src/journal/journal-def.h index 964e0c2..9cb8051 100644 --- a/src/journal/journal-def.h +++ b/src/journal/journal-def.h @@ -22,7 +22,7 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ -#include <inttypes.h> +#include "sparse-endian.h" #include <systemd/sd-id128.h> @@ -60,48 +60,48 @@ _packed_ struct ObjectHeader { uint8_t type; uint8_t flags; uint8_t reserved[6]; - uint64_t size; + le64_t size; uint8_t payload[]; }; _packed_ struct DataObject { ObjectHeader object; - uint64_t hash; - uint64_t next_hash_offset; - uint64_t next_field_offset; - uint64_t entry_offset; /* the first array entry we store inline */ - uint64_t entry_array_offset; - uint64_t n_entries; + le64_t hash; + le64_t next_hash_offset; + le64_t next_field_offset; + le64_t entry_offset; /* the first array entry we store inline */ + le64_t entry_array_offset; + le64_t n_entries; uint8_t payload[]; }; _packed_ struct FieldObject { ObjectHeader object; - uint64_t hash; - uint64_t next_hash_offset; - uint64_t head_data_offset; - uint64_t tail_data_offset; + le64_t hash; + le64_t next_hash_offset; + le64_t head_data_offset; + le64_t tail_data_offset; uint8_t payload[]; }; _packed_ struct EntryItem { - uint64_t object_offset; - uint64_t hash; + le64_t object_offset; + le64_t hash; }; _packed_ struct EntryObject { ObjectHeader object; - uint64_t seqnum; - uint64_t realtime; - uint64_t monotonic; + le64_t seqnum; + le64_t realtime; + le64_t monotonic; sd_id128_t boot_id; - uint64_t xor_hash; + le64_t xor_hash; EntryItem items[]; }; _packed_ struct HashItem { - uint64_t head_hash_offset; - uint64_t tail_hash_offset; + le64_t head_hash_offset; + le64_t tail_hash_offset; }; _packed_ struct HashTableObject { @@ -111,8 +111,8 @@ _packed_ struct HashTableObject { _packed_ struct EntryArrayObject { ObjectHeader object; - uint64_t next_entry_array_offset; - uint64_t items[]; + le64_t next_entry_array_offset; + le64_t items[]; }; union Object { @@ -145,21 +145,21 @@ _packed_ struct Header { sd_id128_t machine_id; sd_id128_t boot_id; sd_id128_t seqnum_id; - uint64_t arena_offset; - uint64_t arena_size; - uint64_t data_hash_table_offset; /* for looking up data objects */ - uint64_t data_hash_table_size; - uint64_t field_hash_table_offset; /* for looking up field objects */ - uint64_t field_hash_table_size; - uint64_t tail_object_offset; - uint64_t n_objects; - uint64_t n_entries; - uint64_t seqnum; - uint64_t first_seqnum; - uint64_t entry_array_offset; - uint64_t head_entry_realtime; - uint64_t tail_entry_realtime; - uint64_t tail_entry_monotonic; + le64_t arena_offset; + le64_t arena_size; + le64_t data_hash_table_offset; /* for looking up data objects */ + le64_t data_hash_table_size; + le64_t field_hash_table_offset; /* for looking up field objects */ + le64_t field_hash_table_size; + le64_t tail_object_offset; + le64_t n_objects; + le64_t n_entries; + le64_t seqnum; + le64_t first_seqnum; + le64_t entry_array_offset; + le64_t head_entry_realtime; + le64_t tail_entry_realtime; + le64_t tail_entry_monotonic; }; #endif diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c index 474dd5c..e803cec 100644 --- a/src/journal/journal-file.c +++ b/src/journal/journal-file.c @@ -793,8 +793,8 @@ static uint64_t journal_file_entry_array_n_items(Object *o) { } static int link_entry_into_array(JournalFile *f, - uint64_t *first, - uint64_t *idx, + le64_t *first, + le64_t *idx, uint64_t p) { int r; uint64_t n = 0, ap = 0, q, i, a, hidx; @@ -857,9 +857,9 @@ static int link_entry_into_array(JournalFile *f, } static int link_entry_into_array_plus_one(JournalFile *f, - uint64_t *extra, - uint64_t *first, - uint64_t *idx, + le64_t *extra, + le64_t *first, + le64_t *idx, uint64_t p) { int r; @@ -873,7 +873,7 @@ static int link_entry_into_array_plus_one(JournalFile *f, if (*idx == 0) *extra = htole64(p); else { - uint64_t i; + le64_t i; i = htole64(le64toh(*idx) - 1); r = link_entry_into_array(f, first, &i, p); @@ -2141,7 +2141,8 @@ int journal_file_copy_entry(JournalFile *from, JournalFile *to, Object *o, uint6 items = alloca(sizeof(EntryItem) * n); for (i = 0; i < n; i++) { - uint64_t le_hash, l, h; + uint64_t l, h; + le64_t le_hash; size_t t; void *data; Object *u; diff --git a/src/journal/journal-internal.h b/src/journal/journal-internal.h index e5914bf..17f1d31 100644 --- a/src/journal/journal-internal.h +++ b/src/journal/journal-internal.h @@ -35,7 +35,7 @@ typedef struct Match Match; struct Match { char *data; size_t size; - uint64_t le_hash; + le64_t le_hash; LIST_FIELDS(Match, matches); }; diff --git a/src/journal/journald.c b/src/journal/journald.c index baad3ab..ebb4275 100644 --- a/src/journal/journald.c +++ b/src/journal/journald.c @@ -1251,6 +1251,7 @@ static void process_native_message( p = e + 1; continue; } else { + le64_t l_le; uint64_t l; char *k; @@ -1259,8 +1260,8 @@ static void process_native_message( break; } - memcpy(&l, e + 1, sizeof(uint64_t)); - l = le64toh(l); + memcpy(&l_le, e + 1, sizeof(uint64_t)); + l = le64toh(l_le); if (remaining < e - p + 1 + sizeof(uint64_t) + l + 1 || e[1+sizeof(uint64_t)+l] != '\n') { diff --git a/src/journal/sd-journal.c b/src/journal/sd-journal.c index 86ac267..e9cd26e 100644 --- a/src/journal/sd-journal.c +++ b/src/journal/sd-journal.c @@ -108,7 +108,7 @@ static int same_field(const void *_a, size_t s, const void *_b, size_t t) { _public_ int sd_journal_add_match(sd_journal *j, const void *data, size_t size) { Match *m, *after = NULL; - uint64_t le_hash; + le64_t le_hash; if (!j) return -EINVAL; @@ -356,7 +356,7 @@ static int find_location(sd_journal *j, JournalFile *f, direction_t direction, O Object *c, *d; uint64_t cp, dp; - r = journal_file_find_data_object_with_hash(f, m->data, m->size, m->le_hash, &d, &dp); + r = journal_file_find_data_object_with_hash(f, m->data, m->size, le64toh(m->le_hash), &d, &dp); if (r <= 0) return r; @@ -1349,7 +1349,8 @@ _public_ int sd_journal_get_data(sd_journal *j, const char *field, const void ** n = journal_file_entry_n_items(o); for (i = 0; i < n; i++) { - uint64_t p, l, le_hash; + uint64_t p, l; + le64_t le_hash; size_t t; p = le64toh(o->entry.items[i].object_offset); @@ -1410,7 +1411,8 @@ _public_ int sd_journal_get_data(sd_journal *j, const char *field, const void ** _public_ int sd_journal_enumerate_data(sd_journal *j, const void **data, size_t *size) { JournalFile *f; - uint64_t p, l, n, le_hash; + uint64_t p, l, n; + le64_t le_hash; int r; Object *o; size_t t; diff --git a/src/journal/sparse-endian.h b/src/journal/sparse-endian.h new file mode 100644 index 0000000..eb4dbf3 --- /dev/null +++ b/src/journal/sparse-endian.h @@ -0,0 +1,87 @@ +/* Copyright (c) 2012 Josh Triplett <josh@joshtriplett.org> + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ +#ifndef SPARSE_ENDIAN_H +#define SPARSE_ENDIAN_H + +#include <endian.h> +#include <stdint.h> + +#ifdef __CHECKER__ +#define __bitwise __attribute__((bitwise)) +#define __force __attribute__((force)) +#else +#define __bitwise +#define __force +#endif + +typedef uint16_t __bitwise le16_t; +typedef uint16_t __bitwise be16_t; +typedef uint32_t __bitwise le32_t; +typedef uint32_t __bitwise be32_t; +typedef uint64_t __bitwise le64_t; +typedef uint64_t __bitwise be64_t; + +#undef htobe16 +#undef htole16 +#undef be16toh +#undef le16toh +#undef htobe32 +#undef htole32 +#undef be32toh +#undef le32toh +#undef htobe64 +#undef htole64 +#undef be64toh +#undef le64toh + +#if __BYTE_ORDER == __LITTLE_ENDIAN +#define bswap_16_on_le(x) __bswap_16(x) +#define bswap_32_on_le(x) __bswap_32(x) +#define bswap_64_on_le(x) __bswap_64(x) +#define bswap_16_on_be(x) (x) +#define bswap_32_on_be(x) (x) +#define bswap_64_on_be(x) (x) +#elif __BYTE_ORDER == __BIG_ENDIAN +#define bswap_16_on_le(x) (x) +#define bswap_32_on_le(x) (x) +#define bswap_64_on_le(x) (x) +#define bswap_16_on_be(x) __bswap_16(x) +#define bswap_32_on_be(x) __bswap_32(x) +#define bswap_64_on_be(x) __bswap_64(x) +#endif + +static inline le16_t htole16(uint16_t value) { return (le16_t __force) bswap_16_on_be(value); } +static inline le32_t htole32(uint32_t value) { return (le32_t __force) bswap_32_on_be(value); } +static inline le64_t htole64(uint64_t value) { return (le64_t __force) bswap_64_on_be(value); } + +static inline be16_t htobe16(uint16_t value) { return (be16_t __force) bswap_16_on_le(value); } +static inline be32_t htobe32(uint32_t value) { return (be32_t __force) bswap_32_on_le(value); } +static inline be64_t htobe64(uint64_t value) { return (be64_t __force) bswap_64_on_le(value); } + +static inline uint16_t le16toh(le16_t value) { return bswap_16_on_be((uint16_t __force)value); } +static inline uint32_t le32toh(le32_t value) { return bswap_32_on_be((uint32_t __force)value); } +static inline uint64_t le64toh(le64_t value) { return bswap_64_on_be((uint64_t __force)value); } + +static inline uint16_t be16toh(be16_t value) { return bswap_16_on_le((uint16_t __force)value); } +static inline uint32_t be32toh(be32_t value) { return bswap_32_on_le((uint32_t __force)value); } +static inline uint64_t be64toh(be64_t value) { return bswap_64_on_le((uint64_t __force)value); } + +#endif /* SPARSE_ENDIAN_H */ -- 1.7.7
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