diff options
| -rw-r--r-- | fs/xfs/libxfs/xfs_log_format.h | 60 | ||||
| -rw-r--r-- | fs/xfs/xfs_attr_item.c | 67 | ||||
| -rw-r--r-- | fs/xfs/xfs_bmap_item.c | 54 | ||||
| -rw-r--r-- | fs/xfs/xfs_extfree_item.c | 94 | ||||
| -rw-r--r-- | fs/xfs/xfs_extfree_item.h | 16 | ||||
| -rw-r--r-- | fs/xfs/xfs_ondisk.h | 23 | ||||
| -rw-r--r-- | fs/xfs/xfs_refcount_item.c | 57 | ||||
| -rw-r--r-- | fs/xfs/xfs_rmap_item.c | 70 | ||||
| -rw-r--r-- | fs/xfs/xfs_super.c | 12 |
9 files changed, 266 insertions, 187 deletions
diff --git a/fs/xfs/libxfs/xfs_log_format.h b/fs/xfs/libxfs/xfs_log_format.h index b351b9dc6561..f13e0809dc63 100644 --- a/fs/xfs/libxfs/xfs_log_format.h +++ b/fs/xfs/libxfs/xfs_log_format.h @@ -613,25 +613,49 @@ typedef struct xfs_efi_log_format { uint16_t efi_size; /* size of this item */ uint32_t efi_nextents; /* # extents to free */ uint64_t efi_id; /* efi identifier */ - xfs_extent_t efi_extents[1]; /* array of extents to free */ + xfs_extent_t efi_extents[]; /* array of extents to free */ } xfs_efi_log_format_t; +static inline size_t +xfs_efi_log_format_sizeof( + unsigned int nr) +{ + return sizeof(struct xfs_efi_log_format) + + nr * sizeof(struct xfs_extent); +} + typedef struct xfs_efi_log_format_32 { uint16_t efi_type; /* efi log item type */ uint16_t efi_size; /* size of this item */ uint32_t efi_nextents; /* # extents to free */ uint64_t efi_id; /* efi identifier */ - xfs_extent_32_t efi_extents[1]; /* array of extents to free */ + xfs_extent_32_t efi_extents[]; /* array of extents to free */ } __attribute__((packed)) xfs_efi_log_format_32_t; +static inline size_t +xfs_efi_log_format32_sizeof( + unsigned int nr) +{ + return sizeof(struct xfs_efi_log_format_32) + + nr * sizeof(struct xfs_extent_32); +} + typedef struct xfs_efi_log_format_64 { uint16_t efi_type; /* efi log item type */ uint16_t efi_size; /* size of this item */ uint32_t efi_nextents; /* # extents to free */ uint64_t efi_id; /* efi identifier */ - xfs_extent_64_t efi_extents[1]; /* array of extents to free */ + xfs_extent_64_t efi_extents[]; /* array of extents to free */ } xfs_efi_log_format_64_t; +static inline size_t +xfs_efi_log_format64_sizeof( + unsigned int nr) +{ + return sizeof(struct xfs_efi_log_format_64) + + nr * sizeof(struct xfs_extent_64); +} + /* * This is the structure used to lay out an efd log item in the * log. The efd_extents array is a variable size array whose @@ -642,25 +666,49 @@ typedef struct xfs_efd_log_format { uint16_t efd_size; /* size of this item */ uint32_t efd_nextents; /* # of extents freed */ uint64_t efd_efi_id; /* id of corresponding efi */ - xfs_extent_t efd_extents[1]; /* array of extents freed */ + xfs_extent_t efd_extents[]; /* array of extents freed */ } xfs_efd_log_format_t; +static inline size_t +xfs_efd_log_format_sizeof( + unsigned int nr) +{ + return sizeof(struct xfs_efd_log_format) + + nr * sizeof(struct xfs_extent); +} + typedef struct xfs_efd_log_format_32 { uint16_t efd_type; /* efd log item type */ uint16_t efd_size; /* size of this item */ uint32_t efd_nextents; /* # of extents freed */ uint64_t efd_efi_id; /* id of corresponding efi */ - xfs_extent_32_t efd_extents[1]; /* array of extents freed */ + xfs_extent_32_t efd_extents[]; /* array of extents freed */ } __attribute__((packed)) xfs_efd_log_format_32_t; +static inline size_t +xfs_efd_log_format32_sizeof( + unsigned int nr) +{ + return sizeof(struct xfs_efd_log_format_32) + + nr * sizeof(struct xfs_extent_32); +} + typedef struct xfs_efd_log_format_64 { uint16_t efd_type; /* efd log item type */ uint16_t efd_size; /* size of this item */ uint32_t efd_nextents; /* # of extents freed */ uint64_t efd_efi_id; /* id of corresponding efi */ - xfs_extent_64_t efd_extents[1]; /* array of extents freed */ + xfs_extent_64_t efd_extents[]; /* array of extents freed */ } xfs_efd_log_format_64_t; +static inline size_t +xfs_efd_log_format64_sizeof( + unsigned int nr) +{ + return sizeof(struct xfs_efd_log_format_64) + + nr * sizeof(struct xfs_extent_64); +} + /* * RUI/RUD (reverse mapping) log format definitions */ diff --git a/fs/xfs/xfs_attr_item.c b/fs/xfs/xfs_attr_item.c index cf5ce607dc05..2788a6f2edcd 100644 --- a/fs/xfs/xfs_attr_item.c +++ b/fs/xfs/xfs_attr_item.c @@ -245,28 +245,6 @@ xfs_attri_init( return attrip; } -/* - * Copy an attr format buffer from the given buf, and into the destination attr - * format structure. - */ -STATIC int -xfs_attri_copy_format( - struct xfs_log_iovec *buf, - struct xfs_attri_log_format *dst_attr_fmt) -{ - struct xfs_attri_log_format *src_attr_fmt = buf->i_addr; - size_t len; - - len = sizeof(struct xfs_attri_log_format); - if (buf->i_len != len) { - XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, NULL); - return -EFSCORRUPTED; - } - - memcpy((char *)dst_attr_fmt, (char *)src_attr_fmt, len); - return 0; -} - static inline struct xfs_attrd_log_item *ATTRD_ITEM(struct xfs_log_item *lip) { return container_of(lip, struct xfs_attrd_log_item, attrd_item); @@ -731,24 +709,50 @@ xlog_recover_attri_commit_pass2( struct xfs_attri_log_nameval *nv; const void *attr_value = NULL; const void *attr_name; - int error; + size_t len; attri_formatp = item->ri_buf[0].i_addr; attr_name = item->ri_buf[1].i_addr; /* Validate xfs_attri_log_format before the large memory allocation */ + len = sizeof(struct xfs_attri_log_format); + if (item->ri_buf[0].i_len != len) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); + return -EFSCORRUPTED; + } + if (!xfs_attri_validate(mp, attri_formatp)) { - XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, mp); + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); + return -EFSCORRUPTED; + } + + /* Validate the attr name */ + if (item->ri_buf[1].i_len != + xlog_calc_iovec_len(attri_formatp->alfi_name_len)) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); return -EFSCORRUPTED; } if (!xfs_attr_namecheck(attr_name, attri_formatp->alfi_name_len)) { - XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, mp); + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + item->ri_buf[1].i_addr, item->ri_buf[1].i_len); return -EFSCORRUPTED; } - if (attri_formatp->alfi_value_len) + /* Validate the attr value, if present */ + if (attri_formatp->alfi_value_len != 0) { + if (item->ri_buf[2].i_len != xlog_calc_iovec_len(attri_formatp->alfi_value_len)) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + item->ri_buf[0].i_addr, + item->ri_buf[0].i_len); + return -EFSCORRUPTED; + } + attr_value = item->ri_buf[2].i_addr; + } /* * Memory alloc failure will cause replay to abort. We attach the @@ -760,9 +764,7 @@ xlog_recover_attri_commit_pass2( attri_formatp->alfi_value_len); attrip = xfs_attri_init(mp, nv); - error = xfs_attri_copy_format(&item->ri_buf[0], &attrip->attri_format); - if (error) - goto out; + memcpy(&attrip->attri_format, attri_formatp, len); /* * The ATTRI has two references. One for the ATTRD and one for ATTRI to @@ -774,10 +776,6 @@ xlog_recover_attri_commit_pass2( xfs_attri_release(attrip); xfs_attri_log_nameval_put(nv); return 0; -out: - xfs_attri_item_free(attrip); - xfs_attri_log_nameval_put(nv); - return error; } /* @@ -842,7 +840,8 @@ xlog_recover_attrd_commit_pass2( attrd_formatp = item->ri_buf[0].i_addr; if (item->ri_buf[0].i_len != sizeof(struct xfs_attrd_log_format)) { - XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, NULL); + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); return -EFSCORRUPTED; } diff --git a/fs/xfs/xfs_bmap_item.c b/fs/xfs/xfs_bmap_item.c index 51f66e982484..41323da523d1 100644 --- a/fs/xfs/xfs_bmap_item.c +++ b/fs/xfs/xfs_bmap_item.c @@ -608,28 +608,18 @@ static const struct xfs_item_ops xfs_bui_item_ops = { .iop_relog = xfs_bui_item_relog, }; -/* - * Copy an BUI format buffer from the given buf, and into the destination - * BUI format structure. The BUI/BUD items were designed not to need any - * special alignment handling. - */ -static int +static inline void xfs_bui_copy_format( - struct xfs_log_iovec *buf, - struct xfs_bui_log_format *dst_bui_fmt) + struct xfs_bui_log_format *dst, + const struct xfs_bui_log_format *src) { - struct xfs_bui_log_format *src_bui_fmt; - uint len; + unsigned int i; - src_bui_fmt = buf->i_addr; - len = xfs_bui_log_format_sizeof(src_bui_fmt->bui_nextents); + memcpy(dst, src, offsetof(struct xfs_bui_log_format, bui_extents)); - if (buf->i_len == len) { - memcpy(dst_bui_fmt, src_bui_fmt, len); - return 0; - } - XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, NULL); - return -EFSCORRUPTED; + for (i = 0; i < src->bui_nextents; i++) + memcpy(&dst->bui_extents[i], &src->bui_extents[i], + sizeof(struct xfs_map_extent)); } /* @@ -646,23 +636,34 @@ xlog_recover_bui_commit_pass2( struct xlog_recover_item *item, xfs_lsn_t lsn) { - int error; struct xfs_mount *mp = log->l_mp; struct xfs_bui_log_item *buip; struct xfs_bui_log_format *bui_formatp; + size_t len; bui_formatp = item->ri_buf[0].i_addr; + if (item->ri_buf[0].i_len < xfs_bui_log_format_sizeof(0)) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); + return -EFSCORRUPTED; + } + if (bui_formatp->bui_nextents != XFS_BUI_MAX_FAST_EXTENTS) { - XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, log->l_mp); + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); return -EFSCORRUPTED; } - buip = xfs_bui_init(mp); - error = xfs_bui_copy_format(&item->ri_buf[0], &buip->bui_format); - if (error) { - xfs_bui_item_free(buip); - return error; + + len = xfs_bui_log_format_sizeof(bui_formatp->bui_nextents); + if (item->ri_buf[0].i_len != len) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); + return -EFSCORRUPTED; } + + buip = xfs_bui_init(mp); + xfs_bui_copy_format(&buip->bui_format, bui_formatp); atomic_set(&buip->bui_next_extent, bui_formatp->bui_nextents); /* * Insert the intent into the AIL directly and drop one reference so @@ -696,7 +697,8 @@ xlog_recover_bud_commit_pass2( bud_formatp = item->ri_buf[0].i_addr; if (item->ri_buf[0].i_len != sizeof(struct xfs_bud_log_format)) { - XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, log->l_mp); + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); return -EFSCORRUPTED; } diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c index 27ccfcd82f04..d5130d1fcfae 100644 --- a/fs/xfs/xfs_extfree_item.c +++ b/fs/xfs/xfs_extfree_item.c @@ -66,27 +66,16 @@ xfs_efi_release( xfs_efi_item_free(efip); } -/* - * This returns the number of iovecs needed to log the given efi item. - * We only need 1 iovec for an efi item. It just logs the efi_log_format - * structure. - */ -static inline int -xfs_efi_item_sizeof( - struct xfs_efi_log_item *efip) -{ - return sizeof(struct xfs_efi_log_format) + - (efip->efi_format.efi_nextents - 1) * sizeof(xfs_extent_t); -} - STATIC void xfs_efi_item_size( struct xfs_log_item *lip, int *nvecs, int *nbytes) { + struct xfs_efi_log_item *efip = EFI_ITEM(lip); + *nvecs += 1; - *nbytes += xfs_efi_item_sizeof(EFI_ITEM(lip)); + *nbytes += xfs_efi_log_format_sizeof(efip->efi_format.efi_nextents); } /* @@ -112,7 +101,7 @@ xfs_efi_item_format( xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_EFI_FORMAT, &efip->efi_format, - xfs_efi_item_sizeof(efip)); + xfs_efi_log_format_sizeof(efip->efi_format.efi_nextents)); } @@ -155,13 +144,11 @@ xfs_efi_init( { struct xfs_efi_log_item *efip; - uint size; ASSERT(nextents > 0); if (nextents > XFS_EFI_MAX_FAST_EXTENTS) { - size = (uint)(sizeof(struct xfs_efi_log_item) + - ((nextents - 1) * sizeof(xfs_extent_t))); - efip = kmem_zalloc(size, 0); + efip = kzalloc(xfs_efi_log_item_sizeof(nextents), + GFP_KERNEL | __GFP_NOFAIL); } else { efip = kmem_cache_zalloc(xfs_efi_cache, GFP_KERNEL | __GFP_NOFAIL); @@ -188,15 +175,17 @@ xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt) { xfs_efi_log_format_t *src_efi_fmt = buf->i_addr; uint i; - uint len = sizeof(xfs_efi_log_format_t) + - (src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_t); - uint len32 = sizeof(xfs_efi_log_format_32_t) + - (src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_32_t); - uint len64 = sizeof(xfs_efi_log_format_64_t) + - (src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_64_t); + uint len = xfs_efi_log_format_sizeof(src_efi_fmt->efi_nextents); + uint len32 = xfs_efi_log_format32_sizeof(src_efi_fmt->efi_nextents); + uint len64 = xfs_efi_log_format64_sizeof(src_efi_fmt->efi_nextents); if (buf->i_len == len) { - memcpy((char *)dst_efi_fmt, (char*)src_efi_fmt, len); + memcpy(dst_efi_fmt, src_efi_fmt, + offsetof(struct xfs_efi_log_format, efi_extents)); + for (i = 0; i < src_efi_fmt->efi_nextents; i++) + memcpy(&dst_efi_fmt->efi_extents[i], + &src_efi_fmt->efi_extents[i], + sizeof(struct xfs_extent)); return 0; } else if (buf->i_len == len32) { xfs_efi_log_format_32_t *src_efi_fmt_32 = buf->i_addr; @@ -227,7 +216,8 @@ xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt) } return 0; } - XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, NULL); + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, NULL, buf->i_addr, + buf->i_len); return -EFSCORRUPTED; } @@ -246,27 +236,16 @@ xfs_efd_item_free(struct xfs_efd_log_item *efdp) kmem_cache_free(xfs_efd_cache, efdp); } -/* - * This returns the number of iovecs needed to log the given efd item. - * We only need 1 iovec for an efd item. It just logs the efd_log_format - * structure. - */ -static inline int -xfs_efd_item_sizeof( - struct xfs_efd_log_item *efdp) -{ - return sizeof(xfs_efd_log_format_t) + - (efdp->efd_format.efd_nextents - 1) * sizeof(xfs_extent_t); -} - STATIC void xfs_efd_item_size( struct xfs_log_item *lip, int *nvecs, int *nbytes) { + struct xfs_efd_log_item *efdp = EFD_ITEM(lip); + *nvecs += 1; - *nbytes += xfs_efd_item_sizeof(EFD_ITEM(lip)); + *nbytes += xfs_efd_log_format_sizeof(efdp->efd_format.efd_nextents); } /* @@ -291,7 +270,7 @@ xfs_efd_item_format( xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_EFD_FORMAT, &efdp->efd_format, - xfs_efd_item_sizeof(efdp)); + xfs_efd_log_format_sizeof(efdp->efd_format.efd_nextents)); } /* @@ -340,9 +319,8 @@ xfs_trans_get_efd( ASSERT(nextents > 0); if (nextents > XFS_EFD_MAX_FAST_EXTENTS) { - efdp = kmem_zalloc(sizeof(struct xfs_efd_log_item) + - (nextents - 1) * sizeof(struct xfs_extent), - 0); + efdp = kzalloc(xfs_efd_log_item_sizeof(nextents), + GFP_KERNEL | __GFP_NOFAIL); } else { efdp = kmem_cache_zalloc(xfs_efd_cache, GFP_KERNEL | __GFP_NOFAIL); @@ -733,6 +711,12 @@ xlog_recover_efi_commit_pass2( efi_formatp = item->ri_buf[0].i_addr; + if (item->ri_buf[0].i_len < xfs_efi_log_format_sizeof(0)) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); + return -EFSCORRUPTED; + } + efip = xfs_efi_init(mp, efi_formatp->efi_nextents); error = xfs_efi_copy_format(&item->ri_buf[0], &efip->efi_format); if (error) { @@ -769,12 +753,24 @@ xlog_recover_efd_commit_pass2( xfs_lsn_t lsn) { struct xfs_efd_log_format *efd_formatp; + int buflen = item->ri_buf[0].i_len; efd_formatp = item->ri_buf[0].i_addr; - ASSERT((item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_32_t) + - ((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_32_t)))) || - (item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_64_t) + - ((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_64_t))))); + + if (buflen < sizeof(struct xfs_efd_log_format)) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp, + efd_formatp, buflen); + return -EFSCORRUPTED; + } + + if (item->ri_buf[0].i_len != xfs_efd_log_format32_sizeof( + efd_formatp->efd_nextents) && + item->ri_buf[0].i_len != xfs_efd_log_format64_sizeof( + efd_formatp->efd_nextents)) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp, + efd_formatp, buflen); + return -EFSCORRUPTED; + } xlog_recover_release_intent(log, XFS_LI_EFI, efd_formatp->efd_efi_id); return 0; diff --git a/fs/xfs/xfs_extfree_item.h b/fs/xfs/xfs_extfree_item.h index 186d0f2137f1..da6a5afa607c 100644 --- a/fs/xfs/xfs_extfree_item.h +++ b/fs/xfs/xfs_extfree_item.h @@ -52,6 +52,14 @@ struct xfs_efi_log_item { xfs_efi_log_format_t efi_format; }; +static inline size_t +xfs_efi_log_item_sizeof( + unsigned int nr) +{ + return offsetof(struct xfs_efi_log_item, efi_format) + + xfs_efi_log_format_sizeof(nr); +} + /* * This is the "extent free done" log item. It is used to log * the fact that some extents earlier mentioned in an efi item @@ -64,6 +72,14 @@ struct xfs_efd_log_item { xfs_efd_log_format_t efd_format; }; +static inline size_t +xfs_efd_log_item_sizeof( + unsigned int nr) +{ + return offsetof(struct xfs_efd_log_item, efd_format) + + xfs_efd_log_format_sizeof(nr); +} + /* * Max number of extents in fast allocation path. */ diff --git a/fs/xfs/xfs_ondisk.h b/fs/xfs/xfs_ondisk.h index 758702b9495f..9737b5a9f405 100644 --- a/fs/xfs/xfs_ondisk.h +++ b/fs/xfs/xfs_ondisk.h @@ -118,10 +118,10 @@ xfs_check_ondisk_structs(void) /* log structures */ XFS_CHECK_STRUCT_SIZE(struct xfs_buf_log_format, 88); XFS_CHECK_STRUCT_SIZE(struct xfs_dq_logformat, 24); - XFS_CHECK_STRUCT_SIZE(struct xfs_efd_log_format_32, 28); - XFS_CHECK_STRUCT_SIZE(struct xfs_efd_log_format_64, 32); - XFS_CHECK_STRUCT_SIZE(struct xfs_efi_log_format_32, 28); - XFS_CHECK_STRUCT_SIZE(struct xfs_efi_log_format_64, 32); + XFS_CHECK_STRUCT_SIZE(struct xfs_efd_log_format_32, 16); + XFS_CHECK_STRUCT_SIZE(struct xfs_efd_log_format_64, 16); + XFS_CHECK_STRUCT_SIZE(struct xfs_efi_log_format_32, 16); + XFS_CHECK_STRUCT_SIZE(struct xfs_efi_log_format_64, 16); XFS_CHECK_STRUCT_SIZE(struct xfs_extent_32, 12); XFS_CHECK_STRUCT_SIZE(struct xfs_extent_64, 16); XFS_CHECK_STRUCT_SIZE(struct xfs_log_dinode, 176); @@ -134,6 +134,21 @@ xfs_check_ondisk_structs(void) XFS_CHECK_STRUCT_SIZE(struct xfs_trans_header, 16); XFS_CHECK_STRUCT_SIZE(struct xfs_attri_log_format, 40); XFS_CHECK_STRUCT_SIZE(struct xfs_attrd_log_format, 16); + XFS_CHECK_STRUCT_SIZE(struct xfs_bui_log_format, 16); + XFS_CHECK_STRUCT_SIZE(struct xfs_bud_log_format, 16); + XFS_CHECK_STRUCT_SIZE(struct xfs_cui_log_format, 16); + XFS_CHECK_STRUCT_SIZE(struct xfs_cud_log_format, 16); + XFS_CHECK_STRUCT_SIZE(struct xfs_rui_log_format, 16); + XFS_CHECK_STRUCT_SIZE(struct xfs_rud_log_format, 16); + XFS_CHECK_STRUCT_SIZE(struct xfs_map_extent, 32); + XFS_CHECK_STRUCT_SIZE(struct xfs_phys_extent, 16); + + XFS_CHECK_OFFSET(struct xfs_bui_log_format, bui_extents, 16); + XFS_CHECK_OFFSET(struct xfs_cui_log_format, cui_extents, 16); + XFS_CHECK_OFFSET(struct xfs_rui_log_format, rui_extents, 16); + XFS_CHECK_OFFSET(struct xfs_efi_log_format, efi_extents, 16); + XFS_CHECK_OFFSET(struct xfs_efi_log_format_32, efi_extents, 16); + XFS_CHECK_OFFSET(struct xfs_efi_log_format_64, efi_extents, 16); /* * The v5 superblock format extended several v4 header structures with diff --git a/fs/xfs/xfs_refcount_item.c b/fs/xfs/xfs_refcount_item.c index 7e97bf19793d..858e3e9eb4a8 100644 --- a/fs/xfs/xfs_refcount_item.c +++ b/fs/xfs/xfs_refcount_item.c @@ -523,7 +523,9 @@ xfs_cui_item_recover( type = refc_type; break; default: - XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, mp); + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + &cuip->cui_format, + sizeof(cuip->cui_format)); error = -EFSCORRUPTED; goto abort_error; } @@ -536,7 +538,8 @@ xfs_cui_item_recover( &new_fsb, &new_len, &rcur); if (error == -EFSCORRUPTED) XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, - refc, sizeof(*refc)); + &cuip->cui_format, + sizeof(cuip->cui_format)); if (error) goto abort_error; @@ -622,28 +625,18 @@ static const struct xfs_item_ops xfs_cui_item_ops = { .iop_relog = xfs_cui_item_relog, }; -/* - * Copy an CUI format buffer from the given buf, and into the destination - * CUI format structure. The CUI/CUD items were designed not to need any - * special alignment handling. - */ -static int +static inline void xfs_cui_copy_format( - struct xfs_log_iovec *buf, - struct xfs_cui_log_format *dst_cui_fmt) + struct xfs_cui_log_format *dst, + const struct xfs_cui_log_format *src) { - struct xfs_cui_log_format *src_cui_fmt; - uint len; + unsigned int i; - src_cui_fmt = buf->i_addr; - len = xfs_cui_log_format_sizeof(src_cui_fmt->cui_nextents); + memcpy(dst, src, offsetof(struct xfs_cui_log_format, cui_extents)); - if (buf->i_len == len) { - memcpy(dst_cui_fmt, src_cui_fmt, len); - return 0; - } - XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, NULL); - return -EFSCORRUPTED; + for (i = 0; i < src->cui_nextents; i++) + memcpy(&dst->cui_extents[i], &src->cui_extents[i], + sizeof(struct xfs_phys_extent)); } /* @@ -660,19 +653,28 @@ xlog_recover_cui_commit_pass2( struct xlog_recover_item *item, xfs_lsn_t lsn) { - int error; struct xfs_mount *mp = log->l_mp; struct xfs_cui_log_item *cuip; struct xfs_cui_log_format *cui_formatp; + size_t len; cui_formatp = item->ri_buf[0].i_addr; - cuip = xfs_cui_init(mp, cui_formatp->cui_nextents); - error = xfs_cui_copy_format(&item->ri_buf[0], &cuip->cui_format); - if (error) { - xfs_cui_item_free(cuip); - return error; + if (item->ri_buf[0].i_len < xfs_cui_log_format_sizeof(0)) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); + return -EFSCORRUPTED; } + + len = xfs_cui_log_format_sizeof(cui_formatp->cui_nextents); + if (item->ri_buf[0].i_len != len) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); + return -EFSCORRUPTED; + } + + cuip = xfs_cui_init(mp, cui_formatp->cui_nextents); + xfs_cui_copy_format(&cuip->cui_format, cui_formatp); atomic_set(&cuip->cui_next_extent, cui_formatp->cui_nextents); /* * Insert the intent into the AIL directly and drop one reference so @@ -706,7 +708,8 @@ xlog_recover_cud_commit_pass2( cud_formatp = item->ri_buf[0].i_addr; if (item->ri_buf[0].i_len != sizeof(struct xfs_cud_log_format)) { - XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, log->l_mp); + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); return -EFSCORRUPTED; } diff --git a/fs/xfs/xfs_rmap_item.c b/fs/xfs/xfs_rmap_item.c index fef92e02f3bb..534504ede1a3 100644 --- a/fs/xfs/xfs_rmap_item.c +++ b/fs/xfs/xfs_rmap_item.c @@ -155,31 +155,6 @@ xfs_rui_init( return ruip; } -/* - * Copy an RUI format buffer from the given buf, and into the destination - * RUI format structure. The RUI/RUD items were designed not to need any - * special alignment handling. - */ -STATIC int -xfs_rui_copy_format( - struct xfs_log_iovec *buf, - struct xfs_rui_log_format *dst_rui_fmt) -{ - struct xfs_rui_log_format *src_rui_fmt; - uint len; - - src_rui_fmt = buf->i_addr; - len = xfs_rui_log_format_sizeof(src_rui_fmt->rui_nextents); - - if (buf->i_len != len) { - XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, NULL); - return -EFSCORRUPTED; - } - - memcpy(dst_rui_fmt, src_rui_fmt, len); - return 0; -} - static inline struct xfs_rud_log_item *RUD_ITEM(struct xfs_log_item *lip) { return container_of(lip, struct xfs_rud_log_item, rud_item); @@ -582,7 +557,9 @@ xfs_rui_item_recover( type = XFS_RMAP_FREE; break; default: - XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, NULL); + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + &ruip->rui_format, + sizeof(ruip->rui_format)); error = -EFSCORRUPTED; goto abort_error; } @@ -652,6 +629,20 @@ static const struct xfs_item_ops xfs_rui_item_ops = { .iop_relog = xfs_rui_item_relog, }; +static inline void +xfs_rui_copy_format( + struct xfs_rui_log_format *dst, + const struct xfs_rui_log_format *src) +{ + unsigned int i; + + memcpy(dst, src, offsetof(struct xfs_rui_log_format, rui_extents)); + + for (i = 0; i < src->rui_nextents; i++) + memcpy(&dst->rui_extents[i], &src->rui_extents[i], + sizeof(struct xfs_map_extent)); +} + /* * This routine is called to create an in-core extent rmap update * item from the rui format structure which was logged on disk. @@ -666,19 +657,28 @@ xlog_recover_rui_commit_pass2( struct xlog_recover_item *item, xfs_lsn_t lsn) { - int error; struct xfs_mount *mp = log->l_mp; struct xfs_rui_log_item *ruip; struct xfs_rui_log_format *rui_formatp; + size_t len; rui_formatp = item->ri_buf[0].i_addr; - ruip = xfs_rui_init(mp, rui_formatp->rui_nextents); - error = xfs_rui_copy_format(&item->ri_buf[0], &ruip->rui_format); - if (error) { - xfs_rui_item_free(ruip); - return error; + if (item->ri_buf[0].i_len < xfs_rui_log_format_sizeof(0)) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); + return -EFSCORRUPTED; + } + + len = xfs_rui_log_format_sizeof(rui_formatp->rui_nextents); + if (item->ri_buf[0].i_len != len) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); + return -EFSCORRUPTED; } + + ruip = xfs_rui_init(mp, rui_formatp->rui_nextents); + xfs_rui_copy_format(&ruip->rui_format, rui_formatp); atomic_set(&ruip->rui_next_extent, rui_formatp->rui_nextents); /* * Insert the intent into the AIL directly and drop one reference so @@ -711,7 +711,11 @@ xlog_recover_rud_commit_pass2( struct xfs_rud_log_format *rud_formatp; rud_formatp = item->ri_buf[0].i_addr; - ASSERT(item->ri_buf[0].i_len == sizeof(struct xfs_rud_log_format)); + if (item->ri_buf[0].i_len != sizeof(struct xfs_rud_log_format)) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp, + rud_formatp, item->ri_buf[0].i_len); + return -EFSCORRUPTED; + } xlog_recover_release_intent(log, XFS_LI_RUI, rud_formatp->rud_rui_id); return 0; diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index f029c6702dda..ee4b429a2f2c 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -2028,18 +2028,14 @@ xfs_init_caches(void) goto out_destroy_trans_cache; xfs_efd_cache = kmem_cache_create("xfs_efd_item", - (sizeof(struct xfs_efd_log_item) + - (XFS_EFD_MAX_FAST_EXTENTS - 1) * - sizeof(struct xfs_extent)), - 0, 0, NULL); + xfs_efd_log_item_sizeof(XFS_EFD_MAX_FAST_EXTENTS), + 0, 0, NULL); if (!xfs_efd_cache) goto out_destroy_buf_item_cache; xfs_efi_cache = kmem_cache_create("xfs_efi_item", - (sizeof(struct xfs_efi_log_item) + - (XFS_EFI_MAX_FAST_EXTENTS - 1) * - sizeof(struct xfs_extent)), - 0, 0, NULL); + xfs_efi_log_item_sizeof(XFS_EFI_MAX_FAST_EXTENTS), + 0, 0, NULL); if (!xfs_efi_cache) goto out_destroy_efd_cache; |