Binary compatibility report for the libdmraid library between 1.0.0.rc14 and 1.0.0.rc15 versions on x86

Test Info

Library Name	libdmraid
Version #1	1.0.0.rc14
Version #2	1.0.0.rc15
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	1
Total Shared Libraries	1
Total Symbols / Types	42 / 43
Verdict	Incompatible (44%)

Problem Summary

	Severity	Count
Added Symbols	-	4
Removed Symbols	High	0
Problems with Data Types	High	0
	Medium	3
	Low	2
Problems with Symbols	High	1
	Medium	0
	Low	1
Problems with Constants	Low	0
Other Changes in Data Types	-	7

Added Symbols (4)

metadata.h, libdmraid.so
delete_raidsets ( struct lib_context* lc ) @@ Base
lib_perform ( struct lib_context* lc, enum action action, struct prepost* p, char** argv ) @@ Base

reconfig.h, libdmraid.so
hot_spare_add ( struct lib_context* lc, struct raid_set* rs ) @@ Base
rebuild_raidset ( struct lib_context* lc, char* set_name ) @@ Base

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Problems with Symbols, High Severity (1)

dmraid.h, libdmraid.so
[+] group_set ( struct lib_context* lc, char* name ) @@ Base (1)

changed to:
group_set ( struct lib_context* lc, char** name ) @@ Base

	Change	Effect
1	The pointer level of 2nd parameter name has been increased from 1 to 2.	The library function may try to access unallocated memory by the dereferencing of old parameter value and therefore cause a crash of applications.

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Problems with Data Types, Medium Severity (3)

lib_context.h
[+] enum lc_options (1)

	Change	Effect
1	Value of member LC_OPTIONS_SIZE has been changed from 11 to 16.	Applications may execute a wrong branch of code in the library and therefore change the behavior.

[+] affected symbols (3)

lc_opt ( struct lib_context* lc, enum lc_options o ) @@ Base

2nd parameter 'o' has type 'enum lc_options'.

lc_stralloc_opt ( struct lib_context* lc, enum lc_options o, char* arg ) @@ Base

2nd parameter 'o' has type 'enum lc_options'.

lc_strcat_opt ( struct lib_context* lc, enum lc_options o, char* arg, char const delim ) @@ Base

2nd parameter 'o' has type 'enum lc_options'.

[+] struct lib_context (1)

	Change	Effect
1	Type of field options has been changed from struct lib_options[11] (132 bytes) to struct lib_options[16] (192 bytes).	1) Size of the inclusive type has been changed. 2) Previous accesses of applications and library functions to this field and fields at higher positions of the structure definition may be broken.

[+] affected symbols (36)

change_set ( struct lib_context* lc, enum activate_type what, void* rs ) @@ Base

1st parameter 'lc' (pointer) has base type 'struct lib_context'.

check_valid_format ( struct lib_context* lc, char* fmt ) @@ Base

1st parameter 'lc' (pointer) has base type 'struct lib_context'.

count_devices ( struct lib_context* lc, enum dev_type type ) @@ Base

1st parameter 'lc' (pointer) has base type 'struct lib_context'.

count_devs ( struct lib_context* lc, struct raid_set* rs, enum count_type type ) @@ Base

1st parameter 'lc' (pointer) has base type 'struct lib_context'.

count_sets ( struct lib_context* lc, struct list_head* list ) @@ Base

1st parameter 'lc' (pointer) has base type 'struct lib_context'.

discover_devices ( struct lib_context* lc, char** devnodes ) @@ Base

1st parameter 'lc' (pointer) has base type 'struct lib_context'.

discover_partitions ( struct lib_context* lc ) @@ Base

1st parameter 'lc' (pointer) has base type 'struct lib_context'.

discover_raid_devices ( struct lib_context* lc, char** devices ) @@ Base

1st parameter 'lc' (pointer) has base type 'struct lib_context'.

display_devices ( struct lib_context* lc, enum dev_type type ) @@ Base

1st parameter 'lc' (pointer) has base type 'struct lib_context'.

display_set ( struct lib_context* lc, void* rs, enum active_type active, int top ) @@ Base

1st parameter 'lc' (pointer) has base type 'struct lib_context'.

dm_version ( struct lib_context* lc, char* version, size_t size ) @@ Base

1st parameter 'lc' (pointer) has base type 'struct lib_context'.

erase_metadata ( struct lib_context* lc ) @@ Base

1st parameter 'lc' (pointer) has base type 'struct lib_context'.

...

metadata.h
[+] struct raid_set (1)

	Change	Effect
1	Field size has been added at the middle position of this structural type.	1) Size of the inclusive type has been changed. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.

[+] affected symbols (4)

count_devs ( struct lib_context* lc, struct raid_set* rs, enum count_type type ) @@ Base

2nd parameter 'rs' (pointer) has base type 'struct raid_set'.

find_set ( struct lib_context* lc, struct list_head* list, char const* name, enum find where ) @@ Base

Return value (pointer) has base type 'struct raid_set'.

libdmraid_make_table ( struct lib_context* lc, struct raid_set* rs ) @@ Base

2nd parameter 'rs' (pointer) has base type 'struct raid_set'.

total_sectors ( struct lib_context* lc, struct raid_set* rs ) @@ Base

2nd parameter 'rs' (pointer) has base type 'struct raid_set'.

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Problems with Data Types, Low Severity (2)

lib_context.h
[+] struct lib_context (1)

	Change	Effect
1	Size of this type has been changed from 208 bytes to 268 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.