diff options
Diffstat (limited to 'lib/libzfs_core')
| -rw-r--r-- | lib/libzfs_core/.gitignore | 1 | ||||
| -rw-r--r-- | lib/libzfs_core/Makefile.am | 49 | ||||
| -rw-r--r-- | lib/libzfs_core/libzfs_core.abi | 3315 | ||||
| -rw-r--r-- | lib/libzfs_core/libzfs_core.c | 1996 | ||||
| -rw-r--r-- | lib/libzfs_core/libzfs_core.pc.in | 13 | ||||
| -rw-r--r-- | lib/libzfs_core/libzfs_core.suppr | 5 | ||||
| -rw-r--r-- | lib/libzfs_core/libzfs_core_impl.h | 36 | ||||
| -rw-r--r-- | lib/libzfs_core/os/freebsd/libzfs_core_ioctl.c | 136 | ||||
| -rw-r--r-- | lib/libzfs_core/os/linux/libzfs_core_ioctl.c | 32 |
9 files changed, 0 insertions, 5583 deletions
diff --git a/lib/libzfs_core/.gitignore b/lib/libzfs_core/.gitignore deleted file mode 100644 index c428d6369033..000000000000 --- a/lib/libzfs_core/.gitignore +++ /dev/null @@ -1 +0,0 @@ -/libzfs_core.pc diff --git a/lib/libzfs_core/Makefile.am b/lib/libzfs_core/Makefile.am deleted file mode 100644 index 42ac6081cc99..000000000000 --- a/lib/libzfs_core/Makefile.am +++ /dev/null @@ -1,49 +0,0 @@ -libzfs_core_la_CFLAGS = $(AM_CFLAGS) $(LIBRARY_CFLAGS) -libzfs_core_la_CFLAGS += -fvisibility=hidden - -libzfs_core_la_CPPFLAGS = $(AM_CPPFLAGS) -libzfs_core_la_CPPFLAGS += -I$(srcdir)/%D% - -lib_LTLIBRARIES += libzfs_core.la -CPPCHECKTARGETS += libzfs_core.la - -libzfs_core_la_SOURCES = \ - %D%/libzfs_core.c \ - %D%/libzfs_core_impl.h - -if BUILD_LINUX -libzfs_core_la_SOURCES += \ - %D%/os/linux/libzfs_core_ioctl.c -endif - -if BUILD_FREEBSD -libzfs_core_la_CPPFLAGS += -Iinclude/os/freebsd/zfs - -libzfs_core_la_SOURCES += \ - %D%/os/freebsd/libzfs_core_ioctl.c - -nodist_libzfs_core_la_SOURCES = \ - module/os/freebsd/zfs/zfs_ioctl_compat.c -endif - -libzfs_core_la_LIBADD = \ - libnvpair.la \ - libspl.la - -libzfs_core_la_LIBADD += $(LTLIBINTL) - -libzfs_core_la_LDFLAGS = -pthread - -if !ASAN_ENABLED -libzfs_core_la_LDFLAGS += -Wl,-z,defs -endif - -if BUILD_FREEBSD -libzfs_core_la_LIBADD += -lutil -lgeom -endif - -libzfs_core_la_LDFLAGS += -version-info 3:0:0 - -pkgconfig_DATA += %D%/libzfs_core.pc - -dist_noinst_DATA += %D%/libzfs_core.abi %D%/libzfs_core.suppr diff --git a/lib/libzfs_core/libzfs_core.abi b/lib/libzfs_core/libzfs_core.abi deleted file mode 100644 index 263cad045f7a..000000000000 --- a/lib/libzfs_core/libzfs_core.abi +++ /dev/null @@ -1,3315 +0,0 @@ -<abi-corpus version='2.0' architecture='elf-amd-x86_64' soname='libzfs_core.so.3'> - <elf-needed> - <dependency name='libnvpair.so.3'/> - <dependency name='libunwind.so.8'/> - <dependency name='libc.so.6'/> - <dependency name='ld-linux-x86-64.so.2'/> - </elf-needed> - <elf-function-symbols> - <elf-symbol name='_sol_getmntent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_16_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_32_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_64_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_8_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_char' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_char_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_int_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_long' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_long_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_ptr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_ptr_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_short' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_add_short_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_16_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_32_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_64_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_8_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_uchar' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_uchar_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_uint_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_ulong' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_ulong_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_ushort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_and_ushort_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_cas_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_cas_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_cas_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_cas_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_cas_ptr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_cas_uchar' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_cas_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_cas_ulong' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_cas_ushort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_clear_long_excl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_16_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_32_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_64_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_8_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_uchar' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_uchar_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_uint_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_ulong' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_ulong_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_ushort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_dec_ushort_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_16_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_32_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_64_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_8_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_uchar' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_uchar_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_uint_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_ulong' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_ulong_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_ushort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_inc_ushort_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_16_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_32_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_64_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_8_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_uchar' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_uchar_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_uint_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_ulong' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_ulong_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_ushort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_or_ushort_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_set_long_excl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_16_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_32_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_64_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_8_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_char' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_char_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_int_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_long' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_long_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_ptr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_ptr_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_short' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_sub_short_nv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_swap_16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_swap_32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_swap_64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_swap_8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_swap_ptr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_swap_uchar' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_swap_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_swap_ulong' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='atomic_swap_ushort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='format_timestamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='get_system_hostid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='get_timestamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='getexecname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='getextmntent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='getmntany' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='getzoneid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='libspl_assertf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='libspl_backtrace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='libspl_set_assert_ok' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='libzfs_core_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='libzfs_core_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_insert_after' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_insert_before' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_insert_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_insert_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_is_empty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_link_active' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_link_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_link_replace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_move_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_prev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_remove_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_remove_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='list_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='lzc_bookmark' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='lzc_change_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='lzc_channel_program' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='lzc_channel_program_nosync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='lzc_clone' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='lzc_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='lzc_ddt_prune' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='lzc_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='lzc_destroy_bookmarks' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - <elf-symbol name='lzc_destroy_snaps' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/> - 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<parameter type-id='95e97e5e' name='fd'/> - <parameter type-id='bfbd3c8e' name='flags'/> - <parameter type-id='80f4b756' name='redactbook'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_send_resume' mangled-name='lzc_send_resume' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send_resume'> - <parameter type-id='80f4b756' name='snapname'/> - <parameter type-id='80f4b756' name='from'/> - <parameter type-id='95e97e5e' name='fd'/> - <parameter type-id='bfbd3c8e' name='flags'/> - <parameter type-id='9c313c2d' name='resumeobj'/> - <parameter type-id='9c313c2d' name='resumeoff'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_send_resume_redacted' mangled-name='lzc_send_resume_redacted' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send_resume_redacted'> - <parameter type-id='80f4b756' name='snapname'/> - <parameter type-id='80f4b756' name='from'/> - <parameter type-id='95e97e5e' name='fd'/> - <parameter type-id='bfbd3c8e' name='flags'/> - <parameter type-id='9c313c2d' name='resumeobj'/> - <parameter type-id='9c313c2d' name='resumeoff'/> - <parameter type-id='80f4b756' name='redactbook'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_send_space_resume_redacted' mangled-name='lzc_send_space_resume_redacted' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send_space_resume_redacted'> - <parameter type-id='80f4b756' name='snapname'/> - <parameter type-id='80f4b756' name='from'/> - <parameter type-id='bfbd3c8e' name='flags'/> - <parameter type-id='9c313c2d' name='resumeobj'/> - <parameter type-id='9c313c2d' name='resumeoff'/> - <parameter type-id='9c313c2d' name='resume_bytes'/> - <parameter type-id='80f4b756' name='redactbook'/> - <parameter type-id='95e97e5e' name='fd'/> - <parameter type-id='5d6479ae' name='spacep'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_send_space' mangled-name='lzc_send_space' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_send_space'> - <parameter type-id='80f4b756' name='snapname'/> - <parameter type-id='80f4b756' name='from'/> - <parameter type-id='bfbd3c8e' name='flags'/> - <parameter type-id='5d6479ae' name='spacep'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_receive' mangled-name='lzc_receive' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_receive'> - <parameter type-id='80f4b756' name='snapname'/> - <parameter type-id='5ce45b60' name='props'/> - <parameter type-id='80f4b756' name='origin'/> - <parameter type-id='c19b74c3' name='force'/> - <parameter type-id='c19b74c3' name='raw'/> - <parameter type-id='95e97e5e' name='fd'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_receive_resumable' mangled-name='lzc_receive_resumable' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_receive_resumable'> - <parameter type-id='80f4b756' name='snapname'/> - <parameter type-id='5ce45b60' name='props'/> - <parameter type-id='80f4b756' name='origin'/> - <parameter type-id='c19b74c3' name='force'/> - <parameter type-id='c19b74c3' name='raw'/> - <parameter type-id='95e97e5e' name='fd'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_receive_with_header' mangled-name='lzc_receive_with_header' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_receive_with_header'> - <parameter type-id='80f4b756' name='snapname'/> - <parameter type-id='5ce45b60' name='props'/> - <parameter type-id='80f4b756' name='origin'/> - <parameter type-id='c19b74c3' name='force'/> - <parameter type-id='c19b74c3' name='resumable'/> - <parameter type-id='c19b74c3' name='raw'/> - <parameter type-id='95e97e5e' name='fd'/> - <parameter type-id='8341348b' name='begin_record'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_receive_one' mangled-name='lzc_receive_one' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_receive_one'> - <parameter type-id='80f4b756' name='snapname'/> - <parameter type-id='5ce45b60' name='props'/> - <parameter type-id='80f4b756' name='origin'/> - <parameter type-id='c19b74c3' name='force'/> - <parameter type-id='c19b74c3' name='resumable'/> - <parameter type-id='c19b74c3' name='raw'/> - <parameter type-id='95e97e5e' name='input_fd'/> - <parameter type-id='8341348b' name='begin_record'/> - <parameter type-id='95e97e5e' name='cleanup_fd'/> - <parameter type-id='5d6479ae' name='read_bytes'/> - <parameter type-id='5d6479ae' name='errflags'/> - <parameter type-id='5d6479ae' name='action_handle'/> - <parameter type-id='857bb57e' name='errors'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_receive_with_cmdprops' mangled-name='lzc_receive_with_cmdprops' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_receive_with_cmdprops'> - <parameter type-id='80f4b756' name='snapname'/> - <parameter type-id='5ce45b60' name='props'/> - <parameter type-id='5ce45b60' name='cmdprops'/> - <parameter type-id='ae3e8ca6' name='wkeydata'/> - <parameter type-id='3502e3ff' name='wkeylen'/> - <parameter type-id='80f4b756' name='origin'/> - <parameter type-id='c19b74c3' name='force'/> - <parameter type-id='c19b74c3' name='resumable'/> - <parameter type-id='c19b74c3' name='raw'/> - <parameter type-id='95e97e5e' name='input_fd'/> - <parameter type-id='8341348b' name='begin_record'/> - <parameter type-id='95e97e5e' name='cleanup_fd'/> - <parameter type-id='5d6479ae' name='read_bytes'/> - <parameter type-id='5d6479ae' name='errflags'/> - <parameter type-id='5d6479ae' name='action_handle'/> - <parameter type-id='857bb57e' name='errors'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_receive_with_heal' mangled-name='lzc_receive_with_heal' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_receive_with_heal'> - <parameter type-id='80f4b756' name='snapname'/> - <parameter type-id='5ce45b60' name='props'/> - <parameter type-id='5ce45b60' name='cmdprops'/> - <parameter type-id='ae3e8ca6' name='wkeydata'/> - <parameter type-id='3502e3ff' name='wkeylen'/> - <parameter type-id='80f4b756' name='origin'/> - <parameter type-id='c19b74c3' name='force'/> - <parameter type-id='c19b74c3' name='heal'/> - <parameter type-id='c19b74c3' name='resumable'/> - <parameter type-id='c19b74c3' name='raw'/> - <parameter type-id='95e97e5e' name='input_fd'/> - <parameter type-id='8341348b' name='begin_record'/> - <parameter type-id='95e97e5e' name='cleanup_fd'/> - <parameter type-id='5d6479ae' name='read_bytes'/> - <parameter type-id='5d6479ae' name='errflags'/> - <parameter type-id='5d6479ae' name='action_handle'/> - <parameter type-id='857bb57e' name='errors'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_rollback' mangled-name='lzc_rollback' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_rollback'> - <parameter type-id='80f4b756' name='fsname'/> - <parameter type-id='26a90f95' name='snapnamebuf'/> - <parameter type-id='95e97e5e' name='snapnamelen'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_rollback_to' mangled-name='lzc_rollback_to' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_rollback_to'> - <parameter type-id='80f4b756' name='fsname'/> - <parameter type-id='80f4b756' name='snapname'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_bookmark' mangled-name='lzc_bookmark' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_bookmark'> - <parameter type-id='5ce45b60' name='bookmarks'/> - <parameter type-id='857bb57e' name='errlist'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_get_bookmarks' mangled-name='lzc_get_bookmarks' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_get_bookmarks'> - <parameter type-id='80f4b756' name='fsname'/> - <parameter type-id='5ce45b60' name='props'/> - <parameter type-id='857bb57e' name='bmarks'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_get_bookmark_props' mangled-name='lzc_get_bookmark_props' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_get_bookmark_props'> - <parameter type-id='80f4b756' name='bookmark'/> - <parameter type-id='857bb57e' name='props'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_destroy_bookmarks' mangled-name='lzc_destroy_bookmarks' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_destroy_bookmarks'> - <parameter type-id='5ce45b60' name='bmarks'/> - <parameter type-id='857bb57e' name='errlist'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_channel_program' mangled-name='lzc_channel_program' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_channel_program'> - <parameter type-id='80f4b756' name='pool'/> - <parameter type-id='80f4b756' name='program'/> - <parameter type-id='9c313c2d' name='instrlimit'/> - <parameter type-id='9c313c2d' name='memlimit'/> - <parameter type-id='5ce45b60' name='argnvl'/> - <parameter type-id='857bb57e' name='outnvl'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_pool_checkpoint' mangled-name='lzc_pool_checkpoint' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_pool_checkpoint'> - <parameter type-id='80f4b756' name='pool'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_pool_checkpoint_discard' mangled-name='lzc_pool_checkpoint_discard' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_pool_checkpoint_discard'> - <parameter type-id='80f4b756' name='pool'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_pool_prefetch' mangled-name='lzc_pool_prefetch' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_pool_prefetch'> - <parameter type-id='80f4b756' name='pool'/> - <parameter type-id='e55ff6bc' name='type'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_channel_program_nosync' mangled-name='lzc_channel_program_nosync' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_channel_program_nosync'> - <parameter type-id='80f4b756' name='pool'/> - <parameter type-id='80f4b756' name='program'/> - <parameter type-id='9c313c2d' name='timeout'/> - <parameter type-id='9c313c2d' name='memlimit'/> - <parameter type-id='5ce45b60' name='argnvl'/> - <parameter type-id='857bb57e' name='outnvl'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_get_vdev_prop' mangled-name='lzc_get_vdev_prop' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_get_vdev_prop'> - <parameter type-id='80f4b756' name='poolname'/> - <parameter type-id='5ce45b60' name='innvl'/> - <parameter type-id='857bb57e' name='outnvl'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_set_vdev_prop' mangled-name='lzc_set_vdev_prop' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_set_vdev_prop'> - <parameter type-id='80f4b756' name='poolname'/> - <parameter type-id='5ce45b60' name='innvl'/> - <parameter type-id='857bb57e' name='outnvl'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_load_key' mangled-name='lzc_load_key' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_load_key'> - <parameter type-id='80f4b756' name='fsname'/> - <parameter type-id='c19b74c3' name='noop'/> - <parameter type-id='ae3e8ca6' name='wkeydata'/> - <parameter type-id='3502e3ff' name='wkeylen'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_unload_key' mangled-name='lzc_unload_key' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_unload_key'> - <parameter type-id='80f4b756' name='fsname'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_change_key' mangled-name='lzc_change_key' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_change_key'> - <parameter type-id='80f4b756' name='fsname'/> - <parameter type-id='9c313c2d' name='crypt_cmd'/> - <parameter type-id='5ce45b60' name='props'/> - <parameter type-id='ae3e8ca6' name='wkeydata'/> - <parameter type-id='3502e3ff' name='wkeylen'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_reopen' mangled-name='lzc_reopen' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_reopen'> - <parameter type-id='80f4b756' name='pool_name'/> - <parameter type-id='c19b74c3' name='scrub_restart'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_initialize' mangled-name='lzc_initialize' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_initialize'> - <parameter type-id='80f4b756' name='poolname'/> - <parameter type-id='7063e1ab' name='cmd_type'/> - <parameter type-id='5ce45b60' name='vdevs'/> - <parameter type-id='857bb57e' name='errlist'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_trim' mangled-name='lzc_trim' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_trim'> - <parameter type-id='80f4b756' name='poolname'/> - <parameter type-id='b1146b8d' name='cmd_type'/> - <parameter type-id='9c313c2d' name='rate'/> - <parameter type-id='c19b74c3' name='secure'/> - <parameter type-id='5ce45b60' name='vdevs'/> - <parameter type-id='857bb57e' name='errlist'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_redact' mangled-name='lzc_redact' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_redact'> - <parameter type-id='80f4b756' name='snapshot'/> - <parameter type-id='80f4b756' name='bookname'/> - <parameter type-id='5ce45b60' name='snapnv'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_wait' mangled-name='lzc_wait' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_wait'> - <parameter type-id='80f4b756' name='pool'/> - <parameter type-id='73446457' name='activity'/> - <parameter type-id='37e3bd22' name='waited'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_wait_tag' mangled-name='lzc_wait_tag' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_wait_tag'> - <parameter type-id='80f4b756' name='pool'/> - <parameter type-id='73446457' name='activity'/> - <parameter type-id='9c313c2d' name='tag'/> - <parameter type-id='37e3bd22' name='waited'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_wait_fs' mangled-name='lzc_wait_fs' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_wait_fs'> - <parameter type-id='80f4b756' name='fs'/> - <parameter type-id='3024501a' name='activity'/> - <parameter type-id='37e3bd22' name='waited'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_set_bootenv' mangled-name='lzc_set_bootenv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_set_bootenv'> - <parameter type-id='80f4b756' name='pool'/> - <parameter type-id='22cce67b' name='env'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_get_bootenv' mangled-name='lzc_get_bootenv' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_get_bootenv'> - <parameter type-id='80f4b756' name='pool'/> - <parameter type-id='857bb57e' name='outnvl'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_ddt_prune' mangled-name='lzc_ddt_prune' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzc_ddt_prune'> - <parameter type-id='80f4b756' name='pool'/> - <parameter type-id='02e25ab0' name='unit'/> - <parameter type-id='9c313c2d' name='amount'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-decl name='lzc_ioctl_fd_os' visibility='default' binding='global' size-in-bits='64'> - <parameter type-id='95e97e5e'/> - <parameter type-id='7359adad'/> - <parameter type-id='b65f7fd1'/> - <return type-id='95e97e5e'/> - </function-decl> - <function-type size-in-bits='64' id='c70fa2e8'> - <parameter type-id='95e97e5e'/> - <parameter type-id='eaa32e2f'/> - <return type-id='95e97e5e'/> - </function-type> - <function-type size-in-bits='64' id='cd5d79f4'> - <parameter type-id='eaa32e2f'/> - <return type-id='eaa32e2f'/> - </function-type> - </abi-instr> - <abi-instr address-size='64' path='lib/libzfs_core/os/linux/libzfs_core_ioctl.c' language='LANG_C99'> - <function-decl name='ioctl' visibility='default' binding='global' size-in-bits='64'> - <parameter type-id='95e97e5e'/> - <parameter type-id='7359adad'/> - <parameter is-variadic='yes'/> - <return type-id='95e97e5e'/> - </function-decl> - </abi-instr> -</abi-corpus> diff --git a/lib/libzfs_core/libzfs_core.c b/lib/libzfs_core/libzfs_core.c deleted file mode 100644 index 9347aa7c6a28..000000000000 --- a/lib/libzfs_core/libzfs_core.c +++ /dev/null @@ -1,1996 +0,0 @@ -// SPDX-License-Identifier: CDDL-1.0 -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or https://opensource.org/licenses/CDDL-1.0. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ - -/* - * Copyright (c) 2012, 2020 by Delphix. All rights reserved. - * Copyright (c) 2013 Steven Hartland. All rights reserved. - * Copyright 2017 RackTop Systems. - * Copyright (c) 2017 Open-E, Inc. All Rights Reserved. - * Copyright (c) 2019, 2020 by Christian Schwarz. All rights reserved. - * Copyright (c) 2019 Datto Inc. - */ - -/* - * LibZFS_Core (lzc) is intended to replace most functionality in libzfs. - * It has the following characteristics: - * - * - Thread Safe. libzfs_core is accessible concurrently from multiple - * threads. This is accomplished primarily by avoiding global data - * (e.g. caching). Since it's thread-safe, there is no reason for a - * process to have multiple libzfs "instances". Therefore, we store - * our few pieces of data (e.g. the file descriptor) in global - * variables. The fd is reference-counted so that the libzfs_core - * library can be "initialized" multiple times (e.g. by different - * consumers within the same process). - * - * - Committed Interface. The libzfs_core interface will be committed, - * therefore consumers can compile against it and be confident that - * their code will continue to work on future releases of this code. - * Currently, the interface is Evolving (not Committed), but we intend - * to commit to it once it is more complete and we determine that it - * meets the needs of all consumers. - * - * - Programmatic Error Handling. libzfs_core communicates errors with - * defined error numbers, and doesn't print anything to stdout/stderr. - * - * - Thin Layer. libzfs_core is a thin layer, marshaling arguments - * to/from the kernel ioctls. There is generally a 1:1 correspondence - * between libzfs_core functions and ioctls to ZFS_DEV. - * - * - Clear Atomicity. Because libzfs_core functions are generally 1:1 - * with kernel ioctls, and kernel ioctls are general atomic, each - * libzfs_core function is atomic. For example, creating multiple - * snapshots with a single call to lzc_snapshot() is atomic -- it - * can't fail with only some of the requested snapshots created, even - * in the event of power loss or system crash. - * - * - Continued libzfs Support. Some higher-level operations (e.g. - * support for "zfs send -R") are too complicated to fit the scope of - * libzfs_core. This functionality will continue to live in libzfs. - * Where appropriate, libzfs will use the underlying atomic operations - * of libzfs_core. For example, libzfs may implement "zfs send -R | - * zfs receive" by using individual "send one snapshot", rename, - * destroy, and "receive one snapshot" operations in libzfs_core. - * /sbin/zfs and /sbin/zpool will link with both libzfs and - * libzfs_core. Other consumers should aim to use only libzfs_core, - * since that will be the supported, stable interface going forwards. - */ - -#include <libzfs_core.h> -#include <ctype.h> -#include <unistd.h> -#include <stdlib.h> -#include <string.h> -#ifdef ZFS_DEBUG -#include <stdio.h> -#endif -#include <errno.h> -#include <fcntl.h> -#include <pthread.h> -#include <libzutil.h> -#include <sys/nvpair.h> -#include <sys/param.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/zfs_ioctl.h> -#if __FreeBSD__ -#define BIG_PIPE_SIZE (64 * 1024) /* From sys/pipe.h */ -#endif - -#include "libzfs_core_impl.h" - -static int g_fd = -1; -static pthread_mutex_t g_lock = PTHREAD_MUTEX_INITIALIZER; -static int g_refcount; - -static int g_ioc_trace = 0; - -#ifdef ZFS_DEBUG -static zfs_ioc_t fail_ioc_cmd = ZFS_IOC_LAST; -static zfs_errno_t fail_ioc_err; - -static void -libzfs_core_debug_ioc(void) -{ - /* - * To test running newer user space binaries with kernel's - * that don't yet support an ioctl or a new ioctl arg we - * provide an override to intentionally fail an ioctl. - * - * USAGE: - * The override variable, ZFS_IOC_TEST, is of the form "cmd:err" - * - * For example, to fail a ZFS_IOC_POOL_CHECKPOINT with a - * ZFS_ERR_IOC_CMD_UNAVAIL, the string would be "0x5a4d:1029" - * - * $ sudo sh -c "ZFS_IOC_TEST=0x5a4d:1029 zpool checkpoint tank" - * cannot checkpoint 'tank': the loaded zfs module does not support - * this operation. A reboot may be required to enable this operation. - */ - if (fail_ioc_cmd == ZFS_IOC_LAST) { - char *ioc_test = getenv("ZFS_IOC_TEST"); - unsigned int ioc_num = 0, ioc_err = 0; - - if (ioc_test != NULL && - sscanf(ioc_test, "%i:%i", &ioc_num, &ioc_err) == 2 && - ioc_num < ZFS_IOC_LAST) { - fail_ioc_cmd = ioc_num; - fail_ioc_err = ioc_err; - } - } -} -#endif - -int -libzfs_core_init(void) -{ - (void) pthread_mutex_lock(&g_lock); - if (g_refcount == 0) { - g_fd = open(ZFS_DEV, O_RDWR|O_CLOEXEC); - if (g_fd < 0) { - (void) pthread_mutex_unlock(&g_lock); - return (errno); - } - } - g_refcount++; - -#ifdef ZFS_DEBUG - libzfs_core_debug_ioc(); -#endif - - if (getenv("ZFS_IOC_TRACE")) - g_ioc_trace = 1; - - (void) pthread_mutex_unlock(&g_lock); - return (0); -} - -void -libzfs_core_fini(void) -{ - (void) pthread_mutex_lock(&g_lock); - ASSERT3S(g_refcount, >, 0); - - g_refcount--; - - if (g_refcount == 0 && g_fd != -1) { - (void) close(g_fd); - g_fd = -1; - } - (void) pthread_mutex_unlock(&g_lock); -} - -int -lzc_ioctl_fd(int fd, unsigned long ioc, zfs_cmd_t *zc) -{ - if (!g_ioc_trace) - return (lzc_ioctl_fd_os(fd, ioc, zc)); - - nvlist_t *nvl; - - fprintf(stderr, "=== lzc_ioctl: call: ioc=0x%lx name=%s\n", - ioc, zc->zc_name[0] ? zc->zc_name : "[none]"); - if (zc->zc_nvlist_src) { - nvl = fnvlist_unpack( - (void *)(uintptr_t)zc->zc_nvlist_src, - zc->zc_nvlist_src_size); - nvlist_print(stderr, nvl); - fnvlist_free(nvl); - } - - int rc = lzc_ioctl_fd_os(fd, ioc, zc); - int err = errno; - - fprintf(stderr, "=== lzc_ioctl: result: ioc=0x%lx name=%s " - "rc=%d errno=%d\n", ioc, zc->zc_name[0] ? zc->zc_name : "[none]", - rc, (rc < 0 ? err : 0)); - if (rc >= 0 && zc->zc_nvlist_dst) { - nvl = fnvlist_unpack( - (void *)(uintptr_t)zc->zc_nvlist_dst, - zc->zc_nvlist_dst_size); - nvlist_print(stderr, nvl); - fnvlist_free(nvl); - } - - errno = err; - return (rc); -} - -static int -lzc_ioctl(zfs_ioc_t ioc, const char *name, - nvlist_t *source, nvlist_t **resultp) -{ - zfs_cmd_t zc = {"\0"}; - int error = 0; - char *packed = NULL; - size_t size = 0; - - ASSERT3S(g_refcount, >, 0); - VERIFY3S(g_fd, !=, -1); - -#ifdef ZFS_DEBUG - if (ioc == fail_ioc_cmd) - return (fail_ioc_err); -#endif - - if (name != NULL) - (void) strlcpy(zc.zc_name, name, sizeof (zc.zc_name)); - - if (source != NULL) { - packed = fnvlist_pack(source, &size); - zc.zc_nvlist_src = (uint64_t)(uintptr_t)packed; - zc.zc_nvlist_src_size = size; - } - - if (resultp != NULL) { - *resultp = NULL; - if (ioc == ZFS_IOC_CHANNEL_PROGRAM) { - zc.zc_nvlist_dst_size = fnvlist_lookup_uint64(source, - ZCP_ARG_MEMLIMIT); - } else { - zc.zc_nvlist_dst_size = MAX(size * 2, 128 * 1024); - } - zc.zc_nvlist_dst = (uint64_t)(uintptr_t) - malloc(zc.zc_nvlist_dst_size); - if (zc.zc_nvlist_dst == (uint64_t)0) { - error = ENOMEM; - goto out; - } - } - - while (lzc_ioctl_fd(g_fd, ioc, &zc) != 0) { - /* - * If ioctl exited with ENOMEM, we retry the ioctl after - * increasing the size of the destination nvlist. - * - * Channel programs that exit with ENOMEM ran over the - * lua memory sandbox; they should not be retried. - */ - if (errno == ENOMEM && resultp != NULL && - ioc != ZFS_IOC_CHANNEL_PROGRAM) { - free((void *)(uintptr_t)zc.zc_nvlist_dst); - zc.zc_nvlist_dst_size *= 2; - zc.zc_nvlist_dst = (uint64_t)(uintptr_t) - malloc(zc.zc_nvlist_dst_size); - if (zc.zc_nvlist_dst == (uint64_t)0) { - error = ENOMEM; - goto out; - } - } else { - error = errno; - break; - } - } - if (zc.zc_nvlist_dst_filled && resultp != NULL) { - *resultp = fnvlist_unpack((void *)(uintptr_t)zc.zc_nvlist_dst, - zc.zc_nvlist_dst_size); - } - -out: - if (packed != NULL) - fnvlist_pack_free(packed, size); - free((void *)(uintptr_t)zc.zc_nvlist_dst); - return (error); -} - -int -lzc_scrub(zfs_ioc_t ioc, const char *name, - nvlist_t *source, nvlist_t **resultp) -{ - return (lzc_ioctl(ioc, name, source, resultp)); -} - -int -lzc_create(const char *fsname, enum lzc_dataset_type type, nvlist_t *props, - uint8_t *wkeydata, uint_t wkeylen) -{ - int error; - nvlist_t *hidden_args = NULL; - nvlist_t *args = fnvlist_alloc(); - - fnvlist_add_int32(args, "type", (dmu_objset_type_t)type); - if (props != NULL) - fnvlist_add_nvlist(args, "props", props); - - if (wkeydata != NULL) { - hidden_args = fnvlist_alloc(); - fnvlist_add_uint8_array(hidden_args, "wkeydata", wkeydata, - wkeylen); - fnvlist_add_nvlist(args, ZPOOL_HIDDEN_ARGS, hidden_args); - } - - error = lzc_ioctl(ZFS_IOC_CREATE, fsname, args, NULL); - nvlist_free(hidden_args); - nvlist_free(args); - return (error); -} - -int -lzc_clone(const char *fsname, const char *origin, nvlist_t *props) -{ - int error; - nvlist_t *hidden_args = NULL; - nvlist_t *args = fnvlist_alloc(); - - fnvlist_add_string(args, "origin", origin); - if (props != NULL) - fnvlist_add_nvlist(args, "props", props); - error = lzc_ioctl(ZFS_IOC_CLONE, fsname, args, NULL); - nvlist_free(hidden_args); - nvlist_free(args); - return (error); -} - -int -lzc_promote(const char *fsname, char *snapnamebuf, int snapnamelen) -{ - /* - * The promote ioctl is still legacy, so we need to construct our - * own zfs_cmd_t rather than using lzc_ioctl(). - */ - zfs_cmd_t zc = {"\0"}; - - ASSERT3S(g_refcount, >, 0); - VERIFY3S(g_fd, !=, -1); - - (void) strlcpy(zc.zc_name, fsname, sizeof (zc.zc_name)); - if (lzc_ioctl_fd(g_fd, ZFS_IOC_PROMOTE, &zc) != 0) { - int error = errno; - if (error == EEXIST && snapnamebuf != NULL) - (void) strlcpy(snapnamebuf, zc.zc_string, snapnamelen); - return (error); - } - return (0); -} - -int -lzc_rename(const char *source, const char *target) -{ - zfs_cmd_t zc = {"\0"}; - int error; - - ASSERT3S(g_refcount, >, 0); - VERIFY3S(g_fd, !=, -1); - (void) strlcpy(zc.zc_name, source, sizeof (zc.zc_name)); - (void) strlcpy(zc.zc_value, target, sizeof (zc.zc_value)); - error = lzc_ioctl_fd(g_fd, ZFS_IOC_RENAME, &zc); - if (error != 0) - error = errno; - return (error); -} - -int -lzc_destroy(const char *fsname) -{ - int error; - nvlist_t *args = fnvlist_alloc(); - error = lzc_ioctl(ZFS_IOC_DESTROY, fsname, args, NULL); - nvlist_free(args); - return (error); -} - -/* - * Creates snapshots. - * - * The keys in the snaps nvlist are the snapshots to be created. - * They must all be in the same pool. - * - * The props nvlist is properties to set. Currently only user properties - * are supported. { user:prop_name -> string value } - * - * The returned results nvlist will have an entry for each snapshot that failed. - * The value will be the (int32) error code. - * - * The return value will be 0 if all snapshots were created, otherwise it will - * be the errno of a (unspecified) snapshot that failed. - */ -int -lzc_snapshot(nvlist_t *snaps, nvlist_t *props, nvlist_t **errlist) -{ - nvpair_t *elem; - nvlist_t *args; - int error; - char pool[ZFS_MAX_DATASET_NAME_LEN]; - - *errlist = NULL; - - /* determine the pool name */ - elem = nvlist_next_nvpair(snaps, NULL); - if (elem == NULL) - return (0); - (void) strlcpy(pool, nvpair_name(elem), sizeof (pool)); - pool[strcspn(pool, "/@")] = '\0'; - - args = fnvlist_alloc(); - fnvlist_add_nvlist(args, "snaps", snaps); - if (props != NULL) - fnvlist_add_nvlist(args, "props", props); - - error = lzc_ioctl(ZFS_IOC_SNAPSHOT, pool, args, errlist); - nvlist_free(args); - - return (error); -} - -/* - * Destroys snapshots. - * - * The keys in the snaps nvlist are the snapshots to be destroyed. - * They must all be in the same pool. - * - * Snapshots that do not exist will be silently ignored. - * - * If 'defer' is not set, and a snapshot has user holds or clones, the - * destroy operation will fail and none of the snapshots will be - * destroyed. - * - * If 'defer' is set, and a snapshot has user holds or clones, it will be - * marked for deferred destruction, and will be destroyed when the last hold - * or clone is removed/destroyed. - * - * The return value will be 0 if all snapshots were destroyed (or marked for - * later destruction if 'defer' is set) or didn't exist to begin with. - * - * Otherwise the return value will be the errno of a (unspecified) snapshot - * that failed, no snapshots will be destroyed, and the errlist will have an - * entry for each snapshot that failed. The value in the errlist will be - * the (int32) error code. - */ -int -lzc_destroy_snaps(nvlist_t *snaps, boolean_t defer, nvlist_t **errlist) -{ - nvpair_t *elem; - nvlist_t *args; - int error; - char pool[ZFS_MAX_DATASET_NAME_LEN]; - - /* determine the pool name */ - elem = nvlist_next_nvpair(snaps, NULL); - if (elem == NULL) - return (0); - (void) strlcpy(pool, nvpair_name(elem), sizeof (pool)); - pool[strcspn(pool, "/@")] = '\0'; - - args = fnvlist_alloc(); - fnvlist_add_nvlist(args, "snaps", snaps); - if (defer) - fnvlist_add_boolean(args, "defer"); - - error = lzc_ioctl(ZFS_IOC_DESTROY_SNAPS, pool, args, errlist); - nvlist_free(args); - - return (error); -} - -int -lzc_snaprange_space(const char *firstsnap, const char *lastsnap, - uint64_t *usedp) -{ - nvlist_t *args; - nvlist_t *result; - int err; - char fs[ZFS_MAX_DATASET_NAME_LEN]; - char *atp; - - /* determine the fs name */ - (void) strlcpy(fs, firstsnap, sizeof (fs)); - atp = strchr(fs, '@'); - if (atp == NULL) - return (EINVAL); - *atp = '\0'; - - args = fnvlist_alloc(); - fnvlist_add_string(args, "firstsnap", firstsnap); - - err = lzc_ioctl(ZFS_IOC_SPACE_SNAPS, lastsnap, args, &result); - nvlist_free(args); - if (err == 0) - *usedp = fnvlist_lookup_uint64(result, "used"); - fnvlist_free(result); - - return (err); -} - -boolean_t -lzc_exists(const char *dataset) -{ - /* - * The objset_stats ioctl is still legacy, so we need to construct our - * own zfs_cmd_t rather than using lzc_ioctl(). - */ - zfs_cmd_t zc = {"\0"}; - - ASSERT3S(g_refcount, >, 0); - VERIFY3S(g_fd, !=, -1); - - (void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name)); - return (lzc_ioctl_fd(g_fd, ZFS_IOC_OBJSET_STATS, &zc) == 0); -} - -/* - * outnvl is unused. - * It was added to preserve the function signature in case it is - * needed in the future. - */ -int -lzc_sync(const char *pool_name, nvlist_t *innvl, nvlist_t **outnvl) -{ - (void) outnvl; - return (lzc_ioctl(ZFS_IOC_POOL_SYNC, pool_name, innvl, NULL)); -} - -/* - * Create "user holds" on snapshots. If there is a hold on a snapshot, - * the snapshot can not be destroyed. (However, it can be marked for deletion - * by lzc_destroy_snaps(defer=B_TRUE).) - * - * The keys in the nvlist are snapshot names. - * The snapshots must all be in the same pool. - * The value is the name of the hold (string type). - * - * If cleanup_fd is not -1, it must be the result of open(ZFS_DEV, O_EXCL). - * In this case, when the cleanup_fd is closed (including on process - * termination), the holds will be released. If the system is shut down - * uncleanly, the holds will be released when the pool is next opened - * or imported. - * - * Holds for snapshots which don't exist will be skipped and have an entry - * added to errlist, but will not cause an overall failure. - * - * The return value will be 0 if all holds, for snapshots that existed, - * were successfully created. - * - * Otherwise the return value will be the errno of a (unspecified) hold that - * failed and no holds will be created. - * - * In all cases the errlist will have an entry for each hold that failed - * (name = snapshot), with its value being the error code (int32). - */ -int -lzc_hold(nvlist_t *holds, int cleanup_fd, nvlist_t **errlist) -{ - char pool[ZFS_MAX_DATASET_NAME_LEN]; - nvlist_t *args; - nvpair_t *elem; - int error; - - /* determine the pool name */ - elem = nvlist_next_nvpair(holds, NULL); - if (elem == NULL) - return (0); - (void) strlcpy(pool, nvpair_name(elem), sizeof (pool)); - pool[strcspn(pool, "/@")] = '\0'; - - args = fnvlist_alloc(); - fnvlist_add_nvlist(args, "holds", holds); - if (cleanup_fd != -1) - fnvlist_add_int32(args, "cleanup_fd", cleanup_fd); - - error = lzc_ioctl(ZFS_IOC_HOLD, pool, args, errlist); - nvlist_free(args); - return (error); -} - -/* - * Release "user holds" on snapshots. If the snapshot has been marked for - * deferred destroy (by lzc_destroy_snaps(defer=B_TRUE)), it does not have - * any clones, and all the user holds are removed, then the snapshot will be - * destroyed. - * - * The keys in the nvlist are snapshot names. - * The snapshots must all be in the same pool. - * The value is an nvlist whose keys are the holds to remove. - * - * Holds which failed to release because they didn't exist will have an entry - * added to errlist, but will not cause an overall failure. - * - * The return value will be 0 if the nvl holds was empty or all holds that - * existed, were successfully removed. - * - * Otherwise the return value will be the errno of a (unspecified) hold that - * failed to release and no holds will be released. - * - * In all cases the errlist will have an entry for each hold that failed to - * to release. - */ -int -lzc_release(nvlist_t *holds, nvlist_t **errlist) -{ - char pool[ZFS_MAX_DATASET_NAME_LEN]; - nvpair_t *elem; - - /* determine the pool name */ - elem = nvlist_next_nvpair(holds, NULL); - if (elem == NULL) - return (0); - (void) strlcpy(pool, nvpair_name(elem), sizeof (pool)); - pool[strcspn(pool, "/@")] = '\0'; - - return (lzc_ioctl(ZFS_IOC_RELEASE, pool, holds, errlist)); -} - -/* - * Retrieve list of user holds on the specified snapshot. - * - * On success, *holdsp will be set to an nvlist which the caller must free. - * The keys are the names of the holds, and the value is the creation time - * of the hold (uint64) in seconds since the epoch. - */ -int -lzc_get_holds(const char *snapname, nvlist_t **holdsp) -{ - return (lzc_ioctl(ZFS_IOC_GET_HOLDS, snapname, NULL, holdsp)); -} - -int -lzc_get_props(const char *poolname, nvlist_t **props) -{ - return (lzc_ioctl(ZFS_IOC_POOL_GET_PROPS, poolname, NULL, props)); -} - -static unsigned int -max_pipe_buffer(int infd) -{ -#if __linux__ - static unsigned int max; - if (max == 0) { - max = 1048576; /* fs/pipe.c default */ - - FILE *procf = fopen("/proc/sys/fs/pipe-max-size", "re"); - if (procf != NULL) { - if (fscanf(procf, "%u", &max) <= 0) { - /* ignore error: max untouched if parse fails */ - } - fclose(procf); - } - } - - unsigned int cur = fcntl(infd, F_GETPIPE_SZ); - /* - * Sadly, Linux has an unfixed deadlock if you do SETPIPE_SZ on a pipe - * with data in it. - * cf. #13232, https://bugzilla.kernel.org/show_bug.cgi?id=212295 - * - * And since the problem is in waking up the writer, there's nothing - * we can do about it from here. - * - * So if people want to, they can set this, but they - * may regret it... - */ - if (getenv("ZFS_SET_PIPE_MAX") == NULL) - return (cur); - if (cur < max && fcntl(infd, F_SETPIPE_SZ, max) != -1) - cur = max; - return (cur); -#else - /* FreeBSD automatically resizes */ - (void) infd; - return (BIG_PIPE_SIZE); -#endif -} - -#if __linux__ -struct send_worker_ctx { - int from; /* read end of pipe, with send data; closed on exit */ - int to; /* original arbitrary output fd; mustn't be a pipe */ -}; - -static void * -send_worker(void *arg) -{ - struct send_worker_ctx *ctx = arg; - unsigned int bufsiz = max_pipe_buffer(ctx->from); - ssize_t rd; - - for (;;) { - rd = splice(ctx->from, NULL, ctx->to, NULL, bufsiz, - SPLICE_F_MOVE | SPLICE_F_MORE); - if ((rd == -1 && errno != EINTR) || rd == 0) - break; - } - int err = (rd == -1) ? errno : 0; - close(ctx->from); - return ((void *)(uintptr_t)err); -} -#endif - -/* - * Since Linux 5.10, 4d03e3cc59828c82ee89ea6e27a2f3cdf95aaadf - * ("fs: don't allow kernel reads and writes without iter ops"), - * ZFS_IOC_SEND* will EINVAL when writing to /dev/null, /dev/zero, &c. - * - * This wrapper transparently executes func() with a pipe - * by spawning a thread to copy from that pipe to the original output - * in the background. - * - * Returns the error from func(), if nonzero, - * otherwise the error from the thread. - * - * No-op if orig_fd is -1, already a pipe (but the buffer size is bumped), - * and on not-Linux; as such, it is safe to wrap/call wrapped functions - * in a wrapped context. - */ -int -lzc_send_wrapper(int (*func)(int, void *), int orig_fd, void *data) -{ -#if __linux__ - struct stat sb; - if (orig_fd != -1 && fstat(orig_fd, &sb) == -1) - return (errno); - if (orig_fd == -1 || S_ISFIFO(sb.st_mode)) { - if (orig_fd != -1) - (void) max_pipe_buffer(orig_fd); - return (func(orig_fd, data)); - } - if ((fcntl(orig_fd, F_GETFL) & O_ACCMODE) == O_RDONLY) - return (errno = EBADF); - - int rw[2]; - if (pipe2(rw, O_CLOEXEC) == -1) - return (errno); - - int err; - pthread_t send_thread; - struct send_worker_ctx ctx = {.from = rw[0], .to = orig_fd}; - if ((err = pthread_create(&send_thread, NULL, send_worker, &ctx)) - != 0) { - close(rw[0]); - close(rw[1]); - return (errno = err); - } - - err = func(rw[1], data); - - void *send_err; - close(rw[1]); - pthread_join(send_thread, &send_err); - if (err == 0 && send_err != 0) - errno = err = (uintptr_t)send_err; - - return (err); -#else - return (func(orig_fd, data)); -#endif -} - -/* - * Generate a zfs send stream for the specified snapshot and write it to - * the specified file descriptor. - * - * "snapname" is the full name of the snapshot to send (e.g. "pool/fs@snap") - * - * If "from" is NULL, a full (non-incremental) stream will be sent. - * If "from" is non-NULL, it must be the full name of a snapshot or - * bookmark to send an incremental from (e.g. "pool/fs@earlier_snap" or - * "pool/fs#earlier_bmark"). If non-NULL, the specified snapshot or - * bookmark must represent an earlier point in the history of "snapname"). - * It can be an earlier snapshot in the same filesystem or zvol as "snapname", - * or it can be the origin of "snapname"'s filesystem, or an earlier - * snapshot in the origin, etc. - * - * "fd" is the file descriptor to write the send stream to. - * - * If "flags" contains LZC_SEND_FLAG_LARGE_BLOCK, the stream is permitted - * to contain DRR_WRITE records with drr_length > 128K, and DRR_OBJECT - * records with drr_blksz > 128K. - * - * If "flags" contains LZC_SEND_FLAG_EMBED_DATA, the stream is permitted - * to contain DRR_WRITE_EMBEDDED records with drr_etype==BP_EMBEDDED_TYPE_DATA, - * which the receiving system must support (as indicated by support - * for the "embedded_data" feature). - * - * If "flags" contains LZC_SEND_FLAG_COMPRESS, the stream is generated by using - * compressed WRITE records for blocks which are compressed on disk and in - * memory. If the lz4_compress feature is active on the sending system, then - * the receiving system must have that feature enabled as well. - * - * If "flags" contains LZC_SEND_FLAG_RAW, the stream is generated, for encrypted - * datasets, by sending data exactly as it exists on disk. This allows backups - * to be taken even if encryption keys are not currently loaded. - */ -int -lzc_send(const char *snapname, const char *from, int fd, - enum lzc_send_flags flags) -{ - return (lzc_send_resume_redacted(snapname, from, fd, flags, 0, 0, - NULL)); -} - -int -lzc_send_redacted(const char *snapname, const char *from, int fd, - enum lzc_send_flags flags, const char *redactbook) -{ - return (lzc_send_resume_redacted(snapname, from, fd, flags, 0, 0, - redactbook)); -} - -int -lzc_send_resume(const char *snapname, const char *from, int fd, - enum lzc_send_flags flags, uint64_t resumeobj, uint64_t resumeoff) -{ - return (lzc_send_resume_redacted(snapname, from, fd, flags, resumeobj, - resumeoff, NULL)); -} - -/* - * snapname: The name of the "tosnap", or the snapshot whose contents we are - * sending. - * from: The name of the "fromsnap", or the incremental source. - * fd: File descriptor to write the stream to. - * flags: flags that determine features to be used by the stream. - * resumeobj: Object to resume from, for resuming send - * resumeoff: Offset to resume from, for resuming send. - * redactnv: nvlist of string -> boolean(ignored) containing the names of all - * the snapshots that we should redact with respect to. - * redactbook: Name of the redaction bookmark to create. - * - * Pre-wrapped. - */ -static int -lzc_send_resume_redacted_cb_impl(const char *snapname, const char *from, int fd, - enum lzc_send_flags flags, uint64_t resumeobj, uint64_t resumeoff, - const char *redactbook) -{ - nvlist_t *args; - int err; - - args = fnvlist_alloc(); - fnvlist_add_int32(args, "fd", fd); - if (from != NULL) - fnvlist_add_string(args, "fromsnap", from); - if (flags & LZC_SEND_FLAG_LARGE_BLOCK) - fnvlist_add_boolean(args, "largeblockok"); - if (flags & LZC_SEND_FLAG_EMBED_DATA) - fnvlist_add_boolean(args, "embedok"); - if (flags & LZC_SEND_FLAG_COMPRESS) - fnvlist_add_boolean(args, "compressok"); - if (flags & LZC_SEND_FLAG_RAW) - fnvlist_add_boolean(args, "rawok"); - if (flags & LZC_SEND_FLAG_SAVED) - fnvlist_add_boolean(args, "savedok"); - if (resumeobj != 0 || resumeoff != 0) { - fnvlist_add_uint64(args, "resume_object", resumeobj); - fnvlist_add_uint64(args, "resume_offset", resumeoff); - } - if (redactbook != NULL) - fnvlist_add_string(args, "redactbook", redactbook); - - err = lzc_ioctl(ZFS_IOC_SEND_NEW, snapname, args, NULL); - nvlist_free(args); - return (err); -} - -struct lzc_send_resume_redacted { - const char *snapname; - const char *from; - enum lzc_send_flags flags; - uint64_t resumeobj; - uint64_t resumeoff; - const char *redactbook; -}; - -static int -lzc_send_resume_redacted_cb(int fd, void *arg) -{ - struct lzc_send_resume_redacted *zsrr = arg; - return (lzc_send_resume_redacted_cb_impl(zsrr->snapname, zsrr->from, - fd, zsrr->flags, zsrr->resumeobj, zsrr->resumeoff, - zsrr->redactbook)); -} - -int -lzc_send_resume_redacted(const char *snapname, const char *from, int fd, - enum lzc_send_flags flags, uint64_t resumeobj, uint64_t resumeoff, - const char *redactbook) -{ - struct lzc_send_resume_redacted zsrr = { - .snapname = snapname, - .from = from, - .flags = flags, - .resumeobj = resumeobj, - .resumeoff = resumeoff, - .redactbook = redactbook, - }; - return (lzc_send_wrapper(lzc_send_resume_redacted_cb, fd, &zsrr)); -} - -/* - * "from" can be NULL, a snapshot, or a bookmark. - * - * If from is NULL, a full (non-incremental) stream will be estimated. This - * is calculated very efficiently. - * - * If from is a snapshot, lzc_send_space uses the deadlists attached to - * each snapshot to efficiently estimate the stream size. - * - * If from is a bookmark, the indirect blocks in the destination snapshot - * are traversed, looking for blocks with a birth time since the creation TXG of - * the snapshot this bookmark was created from. This will result in - * significantly more I/O and be less efficient than a send space estimation on - * an equivalent snapshot. This process is also used if redact_snaps is - * non-null. - * - * Pre-wrapped. - */ -static int -lzc_send_space_resume_redacted_cb_impl(const char *snapname, const char *from, - enum lzc_send_flags flags, uint64_t resumeobj, uint64_t resumeoff, - uint64_t resume_bytes, const char *redactbook, int fd, uint64_t *spacep) -{ - nvlist_t *args; - nvlist_t *result; - int err; - - args = fnvlist_alloc(); - if (from != NULL) - fnvlist_add_string(args, "from", from); - if (flags & LZC_SEND_FLAG_LARGE_BLOCK) - fnvlist_add_boolean(args, "largeblockok"); - if (flags & LZC_SEND_FLAG_EMBED_DATA) - fnvlist_add_boolean(args, "embedok"); - if (flags & LZC_SEND_FLAG_COMPRESS) - fnvlist_add_boolean(args, "compressok"); - if (flags & LZC_SEND_FLAG_RAW) - fnvlist_add_boolean(args, "rawok"); - if (resumeobj != 0 || resumeoff != 0) { - fnvlist_add_uint64(args, "resume_object", resumeobj); - fnvlist_add_uint64(args, "resume_offset", resumeoff); - fnvlist_add_uint64(args, "bytes", resume_bytes); - } - if (redactbook != NULL) - fnvlist_add_string(args, "redactbook", redactbook); - if (fd != -1) - fnvlist_add_int32(args, "fd", fd); - - err = lzc_ioctl(ZFS_IOC_SEND_SPACE, snapname, args, &result); - nvlist_free(args); - if (err == 0) - *spacep = fnvlist_lookup_uint64(result, "space"); - nvlist_free(result); - return (err); -} - -struct lzc_send_space_resume_redacted { - const char *snapname; - const char *from; - enum lzc_send_flags flags; - uint64_t resumeobj; - uint64_t resumeoff; - uint64_t resume_bytes; - const char *redactbook; - uint64_t *spacep; -}; - -static int -lzc_send_space_resume_redacted_cb(int fd, void *arg) -{ - struct lzc_send_space_resume_redacted *zssrr = arg; - return (lzc_send_space_resume_redacted_cb_impl(zssrr->snapname, - zssrr->from, zssrr->flags, zssrr->resumeobj, zssrr->resumeoff, - zssrr->resume_bytes, zssrr->redactbook, fd, zssrr->spacep)); -} - -int -lzc_send_space_resume_redacted(const char *snapname, const char *from, - enum lzc_send_flags flags, uint64_t resumeobj, uint64_t resumeoff, - uint64_t resume_bytes, const char *redactbook, int fd, uint64_t *spacep) -{ - struct lzc_send_space_resume_redacted zssrr = { - .snapname = snapname, - .from = from, - .flags = flags, - .resumeobj = resumeobj, - .resumeoff = resumeoff, - .resume_bytes = resume_bytes, - .redactbook = redactbook, - .spacep = spacep, - }; - return (lzc_send_wrapper(lzc_send_space_resume_redacted_cb, - fd, &zssrr)); -} - -int -lzc_send_space(const char *snapname, const char *from, - enum lzc_send_flags flags, uint64_t *spacep) -{ - return (lzc_send_space_resume_redacted(snapname, from, flags, 0, 0, 0, - NULL, -1, spacep)); -} - -static int -recv_read(int fd, void *buf, int ilen) -{ - char *cp = buf; - int rv; - int len = ilen; - - do { - rv = read(fd, cp, len); - cp += rv; - len -= rv; - } while (rv > 0); - - if (rv < 0 || len != 0) - return (EIO); - - return (0); -} - -/* - * Linux adds ZFS_IOC_RECV_NEW for resumable and raw streams and preserves the - * legacy ZFS_IOC_RECV user/kernel interface. The new interface supports all - * stream options but is currently only used for resumable streams. This way - * updated user space utilities will interoperate with older kernel modules. - * - * Non-Linux OpenZFS platforms have opted to modify the legacy interface. - */ -static int -recv_impl(const char *snapname, nvlist_t *recvdprops, nvlist_t *localprops, - uint8_t *wkeydata, uint_t wkeylen, const char *origin, boolean_t force, - boolean_t heal, boolean_t resumable, boolean_t raw, int input_fd, - const dmu_replay_record_t *begin_record, uint64_t *read_bytes, - uint64_t *errflags, nvlist_t **errors) -{ - dmu_replay_record_t drr; - char fsname[MAXPATHLEN]; - char *atp; - int error; - boolean_t payload = B_FALSE; - - ASSERT3S(g_refcount, >, 0); - VERIFY3S(g_fd, !=, -1); - - /* Set 'fsname' to the name of containing filesystem */ - (void) strlcpy(fsname, snapname, sizeof (fsname)); - atp = strchr(fsname, '@'); - if (atp == NULL) - return (EINVAL); - *atp = '\0'; - - /* If the fs does not exist, try its parent. */ - if (!lzc_exists(fsname)) { - char *slashp = strrchr(fsname, '/'); - if (slashp == NULL) - return (ENOENT); - *slashp = '\0'; - } - - /* - * It is not uncommon for gigabytes to be processed by zfs receive. - * Speculatively increase the buffer size if supported by the platform. - */ - struct stat sb; - if (fstat(input_fd, &sb) == -1) - return (errno); - if (S_ISFIFO(sb.st_mode)) - (void) max_pipe_buffer(input_fd); - - /* - * The begin_record is normally a non-byteswapped BEGIN record. - * For resumable streams it may be set to any non-byteswapped - * dmu_replay_record_t. - */ - if (begin_record == NULL) { - error = recv_read(input_fd, &drr, sizeof (drr)); - if (error != 0) - return (error); - } else { - drr = *begin_record; - payload = (begin_record->drr_payloadlen != 0); - } - - /* - * All receives with a payload should use the new interface. - */ - if (resumable || heal || raw || wkeydata != NULL || payload) { - nvlist_t *outnvl = NULL; - nvlist_t *innvl = fnvlist_alloc(); - - fnvlist_add_string(innvl, "snapname", snapname); - - if (recvdprops != NULL) - fnvlist_add_nvlist(innvl, "props", recvdprops); - - if (localprops != NULL) - fnvlist_add_nvlist(innvl, "localprops", localprops); - - if (wkeydata != NULL) { - /* - * wkeydata must be placed in the special - * ZPOOL_HIDDEN_ARGS nvlist so that it - * will not be printed to the zpool history. - */ - nvlist_t *hidden_args = fnvlist_alloc(); - fnvlist_add_uint8_array(hidden_args, "wkeydata", - wkeydata, wkeylen); - fnvlist_add_nvlist(innvl, ZPOOL_HIDDEN_ARGS, - hidden_args); - nvlist_free(hidden_args); - } - - if (origin != NULL && strlen(origin)) - fnvlist_add_string(innvl, "origin", origin); - - fnvlist_add_byte_array(innvl, "begin_record", - (uchar_t *)&drr, sizeof (drr)); - - fnvlist_add_int32(innvl, "input_fd", input_fd); - - if (force) - fnvlist_add_boolean(innvl, "force"); - - if (resumable) - fnvlist_add_boolean(innvl, "resumable"); - - if (heal) - fnvlist_add_boolean(innvl, "heal"); - - error = lzc_ioctl(ZFS_IOC_RECV_NEW, fsname, innvl, &outnvl); - - if (error == 0 && read_bytes != NULL) - error = nvlist_lookup_uint64(outnvl, "read_bytes", - read_bytes); - - if (error == 0 && errflags != NULL) - error = nvlist_lookup_uint64(outnvl, "error_flags", - errflags); - - if (error == 0 && errors != NULL) { - nvlist_t *nvl; - error = nvlist_lookup_nvlist(outnvl, "errors", &nvl); - if (error == 0) - *errors = fnvlist_dup(nvl); - } - - fnvlist_free(innvl); - fnvlist_free(outnvl); - } else { - zfs_cmd_t zc = {"\0"}; - char *rp_packed = NULL; - char *lp_packed = NULL; - size_t size; - - ASSERT3S(g_refcount, >, 0); - - (void) strlcpy(zc.zc_name, fsname, sizeof (zc.zc_name)); - (void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value)); - - if (recvdprops != NULL) { - rp_packed = fnvlist_pack(recvdprops, &size); - zc.zc_nvlist_src = (uint64_t)(uintptr_t)rp_packed; - zc.zc_nvlist_src_size = size; - } - - if (localprops != NULL) { - lp_packed = fnvlist_pack(localprops, &size); - zc.zc_nvlist_conf = (uint64_t)(uintptr_t)lp_packed; - zc.zc_nvlist_conf_size = size; - } - - if (origin != NULL) - (void) strlcpy(zc.zc_string, origin, - sizeof (zc.zc_string)); - - ASSERT3S(drr.drr_type, ==, DRR_BEGIN); - zc.zc_begin_record = drr.drr_u.drr_begin; - zc.zc_guid = force; - zc.zc_cookie = input_fd; - zc.zc_cleanup_fd = -1; - zc.zc_action_handle = 0; - - zc.zc_nvlist_dst_size = 128 * 1024; - zc.zc_nvlist_dst = (uint64_t)(uintptr_t) - malloc(zc.zc_nvlist_dst_size); - - error = lzc_ioctl_fd(g_fd, ZFS_IOC_RECV, &zc); - if (error != 0) { - error = errno; - } else { - if (read_bytes != NULL) - *read_bytes = zc.zc_cookie; - - if (errflags != NULL) - *errflags = zc.zc_obj; - - if (errors != NULL) - VERIFY0(nvlist_unpack( - (void *)(uintptr_t)zc.zc_nvlist_dst, - zc.zc_nvlist_dst_size, errors, KM_SLEEP)); - } - - if (rp_packed != NULL) - fnvlist_pack_free(rp_packed, size); - if (lp_packed != NULL) - fnvlist_pack_free(lp_packed, size); - free((void *)(uintptr_t)zc.zc_nvlist_dst); - } - - return (error); -} - -/* - * The simplest receive case: receive from the specified fd, creating the - * specified snapshot. Apply the specified properties as "received" properties - * (which can be overridden by locally-set properties). If the stream is a - * clone, its origin snapshot must be specified by 'origin'. The 'force' - * flag will cause the target filesystem to be rolled back or destroyed if - * necessary to receive. - * - * Return 0 on success or an errno on failure. - * - * Note: this interface does not work on dedup'd streams - * (those with DMU_BACKUP_FEATURE_DEDUP). - */ -int -lzc_receive(const char *snapname, nvlist_t *props, const char *origin, - boolean_t force, boolean_t raw, int fd) -{ - return (recv_impl(snapname, props, NULL, NULL, 0, origin, force, - B_FALSE, B_FALSE, raw, fd, NULL, NULL, NULL, NULL)); -} - -/* - * Like lzc_receive, but if the receive fails due to premature stream - * termination, the intermediate state will be preserved on disk. In this - * case, ECKSUM will be returned. The receive may subsequently be resumed - * with a resuming send stream generated by lzc_send_resume(). - */ -int -lzc_receive_resumable(const char *snapname, nvlist_t *props, const char *origin, - boolean_t force, boolean_t raw, int fd) -{ - return (recv_impl(snapname, props, NULL, NULL, 0, origin, force, - B_FALSE, B_TRUE, raw, fd, NULL, NULL, NULL, NULL)); -} - -/* - * Like lzc_receive, but allows the caller to read the begin record and then to - * pass it in. That could be useful if the caller wants to derive, for example, - * the snapname or the origin parameters based on the information contained in - * the begin record. - * The begin record must be in its original form as read from the stream, - * in other words, it should not be byteswapped. - * - * The 'resumable' parameter allows to obtain the same behavior as with - * lzc_receive_resumable. - */ -int -lzc_receive_with_header(const char *snapname, nvlist_t *props, - const char *origin, boolean_t force, boolean_t resumable, boolean_t raw, - int fd, const dmu_replay_record_t *begin_record) -{ - if (begin_record == NULL) - return (EINVAL); - - return (recv_impl(snapname, props, NULL, NULL, 0, origin, force, - B_FALSE, resumable, raw, fd, begin_record, NULL, NULL, NULL)); -} - -/* - * Like lzc_receive, but allows the caller to pass all supported arguments - * and retrieve all values returned. The only additional input parameter - * is 'cleanup_fd' which is used to set a cleanup-on-exit file descriptor. - * - * The following parameters all provide return values. Several may be set - * in the failure case and will contain additional information. - * - * The 'read_bytes' value will be set to the total number of bytes read. - * - * The 'errflags' value will contain zprop_errflags_t flags which are - * used to describe any failures. - * - * The 'action_handle' and 'cleanup_fd' are no longer used, and are ignored. - * - * The 'errors' nvlist contains an entry for each unapplied received - * property. Callers are responsible for freeing this nvlist. - */ -int -lzc_receive_one(const char *snapname, nvlist_t *props, - const char *origin, boolean_t force, boolean_t resumable, boolean_t raw, - int input_fd, const dmu_replay_record_t *begin_record, int cleanup_fd, - uint64_t *read_bytes, uint64_t *errflags, uint64_t *action_handle, - nvlist_t **errors) -{ - (void) action_handle, (void) cleanup_fd; - return (recv_impl(snapname, props, NULL, NULL, 0, origin, force, - B_FALSE, resumable, raw, input_fd, begin_record, - read_bytes, errflags, errors)); -} - -/* - * Like lzc_receive_one, but allows the caller to pass an additional 'cmdprops' - * argument. - * - * The 'cmdprops' nvlist contains both override ('zfs receive -o') and - * exclude ('zfs receive -x') properties. Callers are responsible for freeing - * this nvlist - */ -int -lzc_receive_with_cmdprops(const char *snapname, nvlist_t *props, - nvlist_t *cmdprops, uint8_t *wkeydata, uint_t wkeylen, const char *origin, - boolean_t force, boolean_t resumable, boolean_t raw, int input_fd, - const dmu_replay_record_t *begin_record, int cleanup_fd, - uint64_t *read_bytes, uint64_t *errflags, uint64_t *action_handle, - nvlist_t **errors) -{ - (void) action_handle, (void) cleanup_fd; - return (recv_impl(snapname, props, cmdprops, wkeydata, wkeylen, origin, - force, B_FALSE, resumable, raw, input_fd, begin_record, - read_bytes, errflags, errors)); -} - -/* - * Like lzc_receive_with_cmdprops, but allows the caller to pass an additional - * 'heal' argument. - * - * The heal arguments tells us to heal the provided snapshot using the provided - * send stream - */ -int lzc_receive_with_heal(const char *snapname, nvlist_t *props, - nvlist_t *cmdprops, uint8_t *wkeydata, uint_t wkeylen, const char *origin, - boolean_t force, boolean_t heal, boolean_t resumable, boolean_t raw, - int input_fd, const dmu_replay_record_t *begin_record, int cleanup_fd, - uint64_t *read_bytes, uint64_t *errflags, uint64_t *action_handle, - nvlist_t **errors) -{ - (void) action_handle, (void) cleanup_fd; - return (recv_impl(snapname, props, cmdprops, wkeydata, wkeylen, origin, - force, heal, resumable, raw, input_fd, begin_record, - read_bytes, errflags, errors)); -} - -/* - * Roll back this filesystem or volume to its most recent snapshot. - * If snapnamebuf is not NULL, it will be filled in with the name - * of the most recent snapshot. - * Note that the latest snapshot may change if a new one is concurrently - * created or the current one is destroyed. lzc_rollback_to can be used - * to roll back to a specific latest snapshot. - * - * Return 0 on success or an errno on failure. - */ -int -lzc_rollback(const char *fsname, char *snapnamebuf, int snapnamelen) -{ - nvlist_t *args; - nvlist_t *result; - int err; - - args = fnvlist_alloc(); - err = lzc_ioctl(ZFS_IOC_ROLLBACK, fsname, args, &result); - nvlist_free(args); - if (err == 0 && snapnamebuf != NULL) { - const char *snapname = fnvlist_lookup_string(result, "target"); - (void) strlcpy(snapnamebuf, snapname, snapnamelen); - } - nvlist_free(result); - - return (err); -} - -/* - * Roll back this filesystem or volume to the specified snapshot, - * if possible. - * - * Return 0 on success or an errno on failure. - */ -int -lzc_rollback_to(const char *fsname, const char *snapname) -{ - nvlist_t *args; - nvlist_t *result; - int err; - - args = fnvlist_alloc(); - fnvlist_add_string(args, "target", snapname); - err = lzc_ioctl(ZFS_IOC_ROLLBACK, fsname, args, &result); - nvlist_free(args); - nvlist_free(result); - return (err); -} - -/* - * Creates new bookmarks from existing snapshot or bookmark. - * - * The bookmarks nvlist maps from the full name of the new bookmark to - * the full name of the source snapshot or bookmark. - * All the bookmarks and snapshots must be in the same pool. - * The new bookmarks names must be unique. - * => see function dsl_bookmark_create_nvl_validate - * - * The returned results nvlist will have an entry for each bookmark that failed. - * The value will be the (int32) error code. - * - * The return value will be 0 if all bookmarks were created, otherwise it will - * be the errno of a (undetermined) bookmarks that failed. - */ -int -lzc_bookmark(nvlist_t *bookmarks, nvlist_t **errlist) -{ - nvpair_t *elem; - int error; - char pool[ZFS_MAX_DATASET_NAME_LEN]; - - /* determine pool name from first bookmark */ - elem = nvlist_next_nvpair(bookmarks, NULL); - if (elem == NULL) - return (0); - (void) strlcpy(pool, nvpair_name(elem), sizeof (pool)); - pool[strcspn(pool, "/#")] = '\0'; - - error = lzc_ioctl(ZFS_IOC_BOOKMARK, pool, bookmarks, errlist); - - return (error); -} - -/* - * Retrieve bookmarks. - * - * Retrieve the list of bookmarks for the given file system. The props - * parameter is an nvlist of property names (with no values) that will be - * returned for each bookmark. - * - * The following are valid properties on bookmarks, most of which are numbers - * (represented as uint64 in the nvlist), except redact_snaps, which is a - * uint64 array, and redact_complete, which is a boolean - * - * "guid" - globally unique identifier of the snapshot it refers to - * "createtxg" - txg when the snapshot it refers to was created - * "creation" - timestamp when the snapshot it refers to was created - * "ivsetguid" - IVset guid for identifying encrypted snapshots - * "redact_snaps" - list of guids of the redaction snapshots for the specified - * bookmark. If the bookmark is not a redaction bookmark, the nvlist will - * not contain an entry for this value. If it is redacted with respect to - * no snapshots, it will contain value -> NULL uint64 array - * "redact_complete" - boolean value; true if the redaction bookmark is - * complete, false otherwise. - * - * The format of the returned nvlist as follows: - * <short name of bookmark> -> { - * <name of property> -> { - * "value" -> uint64 - * } - * ... - * "redact_snaps" -> { - * "value" -> uint64 array - * } - * "redact_complete" -> { - * "value" -> boolean value - * } - * } - */ -int -lzc_get_bookmarks(const char *fsname, nvlist_t *props, nvlist_t **bmarks) -{ - return (lzc_ioctl(ZFS_IOC_GET_BOOKMARKS, fsname, props, bmarks)); -} - -/* - * Get bookmark properties. - * - * Given a bookmark's full name, retrieve all properties for the bookmark. - * - * The format of the returned property list is as follows: - * { - * <name of property> -> { - * "value" -> uint64 - * } - * ... - * "redact_snaps" -> { - * "value" -> uint64 array - * } - */ -int -lzc_get_bookmark_props(const char *bookmark, nvlist_t **props) -{ - int error; - - nvlist_t *innvl = fnvlist_alloc(); - error = lzc_ioctl(ZFS_IOC_GET_BOOKMARK_PROPS, bookmark, innvl, props); - fnvlist_free(innvl); - - return (error); -} - -/* - * Destroys bookmarks. - * - * The keys in the bmarks nvlist are the bookmarks to be destroyed. - * They must all be in the same pool. Bookmarks are specified as - * <fs>#<bmark>. - * - * Bookmarks that do not exist will be silently ignored. - * - * The return value will be 0 if all bookmarks that existed were destroyed. - * - * Otherwise the return value will be the errno of a (undetermined) bookmark - * that failed, no bookmarks will be destroyed, and the errlist will have an - * entry for each bookmarks that failed. The value in the errlist will be - * the (int32) error code. - */ -int -lzc_destroy_bookmarks(nvlist_t *bmarks, nvlist_t **errlist) -{ - nvpair_t *elem; - int error; - char pool[ZFS_MAX_DATASET_NAME_LEN]; - - /* determine the pool name */ - elem = nvlist_next_nvpair(bmarks, NULL); - if (elem == NULL) - return (0); - (void) strlcpy(pool, nvpair_name(elem), sizeof (pool)); - pool[strcspn(pool, "/#")] = '\0'; - - error = lzc_ioctl(ZFS_IOC_DESTROY_BOOKMARKS, pool, bmarks, errlist); - - return (error); -} - -static int -lzc_channel_program_impl(const char *pool, const char *program, boolean_t sync, - uint64_t instrlimit, uint64_t memlimit, nvlist_t *argnvl, nvlist_t **outnvl) -{ - int error; - nvlist_t *args; - - args = fnvlist_alloc(); - fnvlist_add_string(args, ZCP_ARG_PROGRAM, program); - fnvlist_add_nvlist(args, ZCP_ARG_ARGLIST, argnvl); - fnvlist_add_boolean_value(args, ZCP_ARG_SYNC, sync); - fnvlist_add_uint64(args, ZCP_ARG_INSTRLIMIT, instrlimit); - fnvlist_add_uint64(args, ZCP_ARG_MEMLIMIT, memlimit); - error = lzc_ioctl(ZFS_IOC_CHANNEL_PROGRAM, pool, args, outnvl); - fnvlist_free(args); - - return (error); -} - -/* - * Executes a channel program. - * - * If this function returns 0 the channel program was successfully loaded and - * ran without failing. Note that individual commands the channel program ran - * may have failed and the channel program is responsible for reporting such - * errors through outnvl if they are important. - * - * This method may also return: - * - * EINVAL The program contains syntax errors, or an invalid memory or time - * limit was given. No part of the channel program was executed. - * If caused by syntax errors, 'outnvl' contains information about the - * errors. - * - * ECHRNG The program was executed, but encountered a runtime error, such as - * calling a function with incorrect arguments, invoking the error() - * function directly, failing an assert() command, etc. Some portion - * of the channel program may have executed and committed changes. - * Information about the failure can be found in 'outnvl'. - * - * ENOMEM The program fully executed, but the output buffer was not large - * enough to store the returned value. No output is returned through - * 'outnvl'. - * - * ENOSPC The program was terminated because it exceeded its memory usage - * limit. Some portion of the channel program may have executed and - * committed changes to disk. No output is returned through 'outnvl'. - * - * ETIME The program was terminated because it exceeded its Lua instruction - * limit. Some portion of the channel program may have executed and - * committed changes to disk. No output is returned through 'outnvl'. - */ -int -lzc_channel_program(const char *pool, const char *program, uint64_t instrlimit, - uint64_t memlimit, nvlist_t *argnvl, nvlist_t **outnvl) -{ - return (lzc_channel_program_impl(pool, program, B_TRUE, instrlimit, - memlimit, argnvl, outnvl)); -} - -/* - * Creates a checkpoint for the specified pool. - * - * If this function returns 0 the pool was successfully checkpointed. - * - * This method may also return: - * - * ZFS_ERR_CHECKPOINT_EXISTS - * The pool already has a checkpoint. A pools can only have one - * checkpoint at most, at any given time. - * - * ZFS_ERR_DISCARDING_CHECKPOINT - * ZFS is in the middle of discarding a checkpoint for this pool. - * The pool can be checkpointed again once the discard is done. - * - * ZFS_DEVRM_IN_PROGRESS - * A vdev is currently being removed. The pool cannot be - * checkpointed until the device removal is done. - * - * ZFS_VDEV_TOO_BIG - * One or more top-level vdevs exceed the maximum vdev size - * supported for this feature. - */ -int -lzc_pool_checkpoint(const char *pool) -{ - int error; - - nvlist_t *result = NULL; - nvlist_t *args = fnvlist_alloc(); - - error = lzc_ioctl(ZFS_IOC_POOL_CHECKPOINT, pool, args, &result); - - fnvlist_free(args); - fnvlist_free(result); - - return (error); -} - -/* - * Discard the checkpoint from the specified pool. - * - * If this function returns 0 the checkpoint was successfully discarded. - * - * This method may also return: - * - * ZFS_ERR_NO_CHECKPOINT - * The pool does not have a checkpoint. - * - * ZFS_ERR_DISCARDING_CHECKPOINT - * ZFS is already in the middle of discarding the checkpoint. - */ -int -lzc_pool_checkpoint_discard(const char *pool) -{ - int error; - - nvlist_t *result = NULL; - nvlist_t *args = fnvlist_alloc(); - - error = lzc_ioctl(ZFS_IOC_POOL_DISCARD_CHECKPOINT, pool, args, &result); - - fnvlist_free(args); - fnvlist_free(result); - - return (error); -} - -/* - * Load the requested data type for the specified pool. - */ -int -lzc_pool_prefetch(const char *pool, zpool_prefetch_type_t type) -{ - int error; - nvlist_t *result = NULL; - nvlist_t *args = fnvlist_alloc(); - - fnvlist_add_int32(args, ZPOOL_PREFETCH_TYPE, type); - - error = lzc_ioctl(ZFS_IOC_POOL_PREFETCH, pool, args, &result); - - fnvlist_free(args); - fnvlist_free(result); - - return (error); -} - -/* - * Executes a read-only channel program. - * - * A read-only channel program works programmatically the same way as a - * normal channel program executed with lzc_channel_program(). The only - * difference is it runs exclusively in open-context and therefore can - * return faster. The downside to that, is that the program cannot change - * on-disk state by calling functions from the zfs.sync submodule. - * - * The return values of this function (and their meaning) are exactly the - * same as the ones described in lzc_channel_program(). - */ -int -lzc_channel_program_nosync(const char *pool, const char *program, - uint64_t timeout, uint64_t memlimit, nvlist_t *argnvl, nvlist_t **outnvl) -{ - return (lzc_channel_program_impl(pool, program, B_FALSE, timeout, - memlimit, argnvl, outnvl)); -} - -int -lzc_get_vdev_prop(const char *poolname, nvlist_t *innvl, nvlist_t **outnvl) -{ - return (lzc_ioctl(ZFS_IOC_VDEV_GET_PROPS, poolname, innvl, outnvl)); -} - -int -lzc_set_vdev_prop(const char *poolname, nvlist_t *innvl, nvlist_t **outnvl) -{ - return (lzc_ioctl(ZFS_IOC_VDEV_SET_PROPS, poolname, innvl, outnvl)); -} - -/* - * Performs key management functions - * - * crypto_cmd should be a value from dcp_cmd_t. If the command specifies to - * load or change a wrapping key, the key should be specified in the - * hidden_args nvlist so that it is not logged. - */ -int -lzc_load_key(const char *fsname, boolean_t noop, uint8_t *wkeydata, - uint_t wkeylen) -{ - int error; - nvlist_t *ioc_args; - nvlist_t *hidden_args; - - if (wkeydata == NULL) - return (EINVAL); - - ioc_args = fnvlist_alloc(); - hidden_args = fnvlist_alloc(); - fnvlist_add_uint8_array(hidden_args, "wkeydata", wkeydata, wkeylen); - fnvlist_add_nvlist(ioc_args, ZPOOL_HIDDEN_ARGS, hidden_args); - if (noop) - fnvlist_add_boolean(ioc_args, "noop"); - error = lzc_ioctl(ZFS_IOC_LOAD_KEY, fsname, ioc_args, NULL); - nvlist_free(hidden_args); - nvlist_free(ioc_args); - - return (error); -} - -int -lzc_unload_key(const char *fsname) -{ - return (lzc_ioctl(ZFS_IOC_UNLOAD_KEY, fsname, NULL, NULL)); -} - -int -lzc_change_key(const char *fsname, uint64_t crypt_cmd, nvlist_t *props, - uint8_t *wkeydata, uint_t wkeylen) -{ - int error; - nvlist_t *ioc_args = fnvlist_alloc(); - nvlist_t *hidden_args = NULL; - - fnvlist_add_uint64(ioc_args, "crypt_cmd", crypt_cmd); - - if (wkeydata != NULL) { - hidden_args = fnvlist_alloc(); - fnvlist_add_uint8_array(hidden_args, "wkeydata", wkeydata, - wkeylen); - fnvlist_add_nvlist(ioc_args, ZPOOL_HIDDEN_ARGS, hidden_args); - } - - if (props != NULL) - fnvlist_add_nvlist(ioc_args, "props", props); - - error = lzc_ioctl(ZFS_IOC_CHANGE_KEY, fsname, ioc_args, NULL); - nvlist_free(hidden_args); - nvlist_free(ioc_args); - - return (error); -} - -int -lzc_reopen(const char *pool_name, boolean_t scrub_restart) -{ - nvlist_t *args = fnvlist_alloc(); - int error; - - fnvlist_add_boolean_value(args, "scrub_restart", scrub_restart); - - error = lzc_ioctl(ZFS_IOC_POOL_REOPEN, pool_name, args, NULL); - nvlist_free(args); - return (error); -} - -/* - * Changes initializing state. - * - * vdevs should be a list of (<key>, guid) where guid is a uint64 vdev GUID. - * The key is ignored. - * - * If there are errors related to vdev arguments, per-vdev errors are returned - * in an nvlist with the key "vdevs". Each error is a (guid, errno) pair where - * guid is stringified with PRIu64, and errno is one of the following as - * an int64_t: - * - ENODEV if the device was not found - * - EINVAL if the devices is not a leaf or is not concrete (e.g. missing) - * - EROFS if the device is not writeable - * - EBUSY start requested but the device is already being either - * initialized or trimmed - * - ESRCH cancel/suspend requested but device is not being initialized - * - * If the errlist is empty, then return value will be: - * - EINVAL if one or more arguments was invalid - * - Other spa_open failures - * - 0 if the operation succeeded - */ -int -lzc_initialize(const char *poolname, pool_initialize_func_t cmd_type, - nvlist_t *vdevs, nvlist_t **errlist) -{ - int error; - - nvlist_t *args = fnvlist_alloc(); - fnvlist_add_uint64(args, ZPOOL_INITIALIZE_COMMAND, (uint64_t)cmd_type); - fnvlist_add_nvlist(args, ZPOOL_INITIALIZE_VDEVS, vdevs); - - error = lzc_ioctl(ZFS_IOC_POOL_INITIALIZE, poolname, args, errlist); - - fnvlist_free(args); - - return (error); -} - -/* - * Changes TRIM state. - * - * vdevs should be a list of (<key>, guid) where guid is a uint64 vdev GUID. - * The key is ignored. - * - * If there are errors related to vdev arguments, per-vdev errors are returned - * in an nvlist with the key "vdevs". Each error is a (guid, errno) pair where - * guid is stringified with PRIu64, and errno is one of the following as - * an int64_t: - * - ENODEV if the device was not found - * - EINVAL if the devices is not a leaf or is not concrete (e.g. missing) - * - EROFS if the device is not writeable - * - EBUSY start requested but the device is already being either trimmed - * or initialized - * - ESRCH cancel/suspend requested but device is not being initialized - * - EOPNOTSUPP if the device does not support TRIM (or secure TRIM) - * - * If the errlist is empty, then return value will be: - * - EINVAL if one or more arguments was invalid - * - Other spa_open failures - * - 0 if the operation succeeded - */ -int -lzc_trim(const char *poolname, pool_trim_func_t cmd_type, uint64_t rate, - boolean_t secure, nvlist_t *vdevs, nvlist_t **errlist) -{ - int error; - - nvlist_t *args = fnvlist_alloc(); - fnvlist_add_uint64(args, ZPOOL_TRIM_COMMAND, (uint64_t)cmd_type); - fnvlist_add_nvlist(args, ZPOOL_TRIM_VDEVS, vdevs); - fnvlist_add_uint64(args, ZPOOL_TRIM_RATE, rate); - fnvlist_add_boolean_value(args, ZPOOL_TRIM_SECURE, secure); - - error = lzc_ioctl(ZFS_IOC_POOL_TRIM, poolname, args, errlist); - - fnvlist_free(args); - - return (error); -} - -/* - * Create a redaction bookmark named bookname by redacting snapshot with respect - * to all the snapshots in snapnv. - */ -int -lzc_redact(const char *snapshot, const char *bookname, nvlist_t *snapnv) -{ - nvlist_t *args = fnvlist_alloc(); - fnvlist_add_string(args, "bookname", bookname); - fnvlist_add_nvlist(args, "snapnv", snapnv); - int error = lzc_ioctl(ZFS_IOC_REDACT, snapshot, args, NULL); - fnvlist_free(args); - return (error); -} - -static int -wait_common(const char *pool, zpool_wait_activity_t activity, boolean_t use_tag, - uint64_t tag, boolean_t *waited) -{ - nvlist_t *args = fnvlist_alloc(); - nvlist_t *result = NULL; - - fnvlist_add_int32(args, ZPOOL_WAIT_ACTIVITY, activity); - if (use_tag) - fnvlist_add_uint64(args, ZPOOL_WAIT_TAG, tag); - - int error = lzc_ioctl(ZFS_IOC_WAIT, pool, args, &result); - - if (error == 0 && waited != NULL) - *waited = fnvlist_lookup_boolean_value(result, - ZPOOL_WAIT_WAITED); - - fnvlist_free(args); - fnvlist_free(result); - - return (error); -} - -int -lzc_wait(const char *pool, zpool_wait_activity_t activity, boolean_t *waited) -{ - return (wait_common(pool, activity, B_FALSE, 0, waited)); -} - -int -lzc_wait_tag(const char *pool, zpool_wait_activity_t activity, uint64_t tag, - boolean_t *waited) -{ - return (wait_common(pool, activity, B_TRUE, tag, waited)); -} - -int -lzc_wait_fs(const char *fs, zfs_wait_activity_t activity, boolean_t *waited) -{ - nvlist_t *args = fnvlist_alloc(); - nvlist_t *result = NULL; - - fnvlist_add_int32(args, ZFS_WAIT_ACTIVITY, activity); - - int error = lzc_ioctl(ZFS_IOC_WAIT_FS, fs, args, &result); - - if (error == 0 && waited != NULL) - *waited = fnvlist_lookup_boolean_value(result, - ZFS_WAIT_WAITED); - - fnvlist_free(args); - fnvlist_free(result); - - return (error); -} - -/* - * Set the bootenv contents for the given pool. - */ -int -lzc_set_bootenv(const char *pool, const nvlist_t *env) -{ - return (lzc_ioctl(ZFS_IOC_SET_BOOTENV, pool, (nvlist_t *)env, NULL)); -} - -/* - * Get the contents of the bootenv of the given pool. - */ -int -lzc_get_bootenv(const char *pool, nvlist_t **outnvl) -{ - return (lzc_ioctl(ZFS_IOC_GET_BOOTENV, pool, NULL, outnvl)); -} - -/* - * Prune the specified amount from the pool's dedup table. - */ -int -lzc_ddt_prune(const char *pool, zpool_ddt_prune_unit_t unit, uint64_t amount) -{ - int error; - - nvlist_t *result = NULL; - nvlist_t *args = fnvlist_alloc(); - - fnvlist_add_int32(args, DDT_PRUNE_UNIT, unit); - fnvlist_add_uint64(args, DDT_PRUNE_AMOUNT, amount); - - error = lzc_ioctl(ZFS_IOC_DDT_PRUNE, pool, args, &result); - - fnvlist_free(args); - fnvlist_free(result); - - return (error); -} diff --git a/lib/libzfs_core/libzfs_core.pc.in b/lib/libzfs_core/libzfs_core.pc.in deleted file mode 100644 index bc9582ea33d0..000000000000 --- a/lib/libzfs_core/libzfs_core.pc.in +++ /dev/null @@ -1,13 +0,0 @@ -prefix=@prefix@ -exec_prefix=@exec_prefix@ -libdir=@libdir@ -includedir=@includedir@ - -Name: libzfs_core -Description: LibZFS core library -Version: @VERSION@ -URL: https://github.com/openzfs/zfs -Requires.private: @LIBBLKID_PC@ @LIBUUID_PC@ @LIBTIRPC_PC@ @ZLIB_PC@ -Cflags: -I${includedir}/libzfs -I${includedir}/libspl -Libs: -L${libdir} -lzfs_core -lnvpair -Libs.private: @LIBCLOCK_GETTIME@ @LIBUDEV_LIBS@ -lm -pthread diff --git a/lib/libzfs_core/libzfs_core.suppr b/lib/libzfs_core/libzfs_core.suppr deleted file mode 100644 index 109d331cfd51..000000000000 --- a/lib/libzfs_core/libzfs_core.suppr +++ /dev/null @@ -1,5 +0,0 @@ -[suppress_type] - name = FILE* - -[suppress_type] - name = pthread_cond_t diff --git a/lib/libzfs_core/libzfs_core_impl.h b/lib/libzfs_core/libzfs_core_impl.h deleted file mode 100644 index baf9a7a95834..000000000000 --- a/lib/libzfs_core/libzfs_core_impl.h +++ /dev/null @@ -1,36 +0,0 @@ -// SPDX-License-Identifier: CDDL-1.0 -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or https://opensource.org/licenses/CDDL-1.0. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ - -/* - * Copyright (c) 2012, 2020 by Delphix. All rights reserved. - * Copyright 2017 RackTop Systems. - * Copyright (c) 2017 Open-E, Inc. All Rights Reserved. - * Copyright (c) 2019 Datto Inc. - */ - -#ifndef _LIBZFS_CORE_IMPL_H -#define _LIBZFS_CORE_IMPL_H - -struct zfs_cmd; -int lzc_ioctl_fd_os(int, unsigned long, struct zfs_cmd *); - -#endif /* _LIBZFS_CORE_IMPL_H */ diff --git a/lib/libzfs_core/os/freebsd/libzfs_core_ioctl.c b/lib/libzfs_core/os/freebsd/libzfs_core_ioctl.c deleted file mode 100644 index 39e217a9349e..000000000000 --- a/lib/libzfs_core/os/freebsd/libzfs_core_ioctl.c +++ /dev/null @@ -1,136 +0,0 @@ -// SPDX-License-Identifier: CDDL-1.0 -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or https://opensource.org/licenses/CDDL-1.0. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ -#include <sys/types.h> -#include <sys/param.h> -#include <sys/sysctl.h> -#include <sys/zfs_ioctl.h> -#include <os/freebsd/zfs/sys/zfs_ioctl_compat.h> -#include <err.h> -#include <libzfs_core.h> -#include "libzfs_core_impl.h" - -int zfs_ioctl_version = ZFS_IOCVER_UNDEF; - -/* - * Get zfs_ioctl_version - */ -static int -get_zfs_ioctl_version(void) -{ - size_t ver_size; - int ver = ZFS_IOCVER_NONE; - - ver_size = sizeof (ver); - (void) sysctlbyname("vfs.zfs.version.ioctl", &ver, &ver_size, NULL, 0); - - return (ver); -} - -static int -zcmd_ioctl_compat(int fd, int request, zfs_cmd_t *zc, const int cflag) -{ - int ret; -#ifdef ZFS_LEGACY_SUPPORT - int newrequest; - void *zc_c = NULL; -#endif - unsigned long ncmd; - zfs_iocparm_t zp; - - switch (cflag) { - case ZFS_CMD_COMPAT_NONE: - ncmd = _IOWR('Z', request, zfs_iocparm_t); - zp.zfs_cmd = (uint64_t)(uintptr_t)zc; - zp.zfs_cmd_size = sizeof (zfs_cmd_t); - zp.zfs_ioctl_version = ZFS_IOCVER_OZFS; - break; -#ifdef ZFS_LEGACY_SUPPORT - case ZFS_CMD_COMPAT_LEGACY: - newrequest = zfs_ioctl_ozfs_to_legacy(request); - ncmd = _IOWR('Z', newrequest, zfs_iocparm_t); - zc_c = malloc(sizeof (zfs_cmd_legacy_t)); - zfs_cmd_ozfs_to_legacy(zc, zc_c); - zp.zfs_cmd = (uint64_t)(uintptr_t)zc_c; - zp.zfs_cmd_size = sizeof (zfs_cmd_legacy_t); - zp.zfs_ioctl_version = ZFS_IOCVER_LEGACY; - break; -#endif - default: - abort(); - return (EINVAL); - } - - ret = ioctl(fd, ncmd, &zp); - if (ret) { -#ifdef ZFS_LEGACY_SUPPORT - if (zc_c) - free(zc_c); -#endif - return (ret); - } -#ifdef ZFS_LEGACY_SUPPORT - if (zc_c) { - zfs_cmd_legacy_to_ozfs(zc_c, zc); - free(zc_c); - } -#endif - return (ret); -} - -/* - * This is FreeBSD version of ioctl, because Solaris' ioctl() updates - * zc_nvlist_dst_size even if an error is returned, on FreeBSD if an - * error is returned zc_nvlist_dst_size won't be updated. - */ -int -lzc_ioctl_fd_os(int fd, unsigned long request, zfs_cmd_t *zc) -{ - size_t oldsize; - int ret, cflag = ZFS_CMD_COMPAT_NONE; - - if (zfs_ioctl_version == ZFS_IOCVER_UNDEF) - zfs_ioctl_version = get_zfs_ioctl_version(); - - switch (zfs_ioctl_version) { -#ifdef ZFS_LEGACY_SUPPORT - case ZFS_IOCVER_LEGACY: - cflag = ZFS_CMD_COMPAT_LEGACY; - break; -#endif - case ZFS_IOCVER_OZFS: - cflag = ZFS_CMD_COMPAT_NONE; - break; - default: - errx(1, "unrecognized zfs ioctl version %d", - zfs_ioctl_version); - } - - oldsize = zc->zc_nvlist_dst_size; - ret = zcmd_ioctl_compat(fd, request, zc, cflag); - - if (ret == 0 && oldsize < zc->zc_nvlist_dst_size) { - ret = -1; - errno = ENOMEM; - } - - return (ret); -} diff --git a/lib/libzfs_core/os/linux/libzfs_core_ioctl.c b/lib/libzfs_core/os/linux/libzfs_core_ioctl.c deleted file mode 100644 index 6823588e23e2..000000000000 --- a/lib/libzfs_core/os/linux/libzfs_core_ioctl.c +++ /dev/null @@ -1,32 +0,0 @@ -// SPDX-License-Identifier: CDDL-1.0 -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or https://opensource.org/licenses/CDDL-1.0. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ -#include <sys/types.h> -#include <sys/param.h> -#include <sys/zfs_ioctl.h> -#include <libzfs_core.h> -#include "libzfs_core_impl.h" - -int -lzc_ioctl_fd_os(int fd, unsigned long request, zfs_cmd_t *zc) -{ - return (ioctl(fd, request, zc)); -} |