Binary compatibility report for the libnfnetlink library between 0.0.14 and 0.0.25 versions on x86

Test Info

Library Name	libnfnetlink
Version #1	0.0.14
Version #2	0.0.25
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	2
Total Shared Libraries	1
Total Symbols / Types	25 / 45
Verdict	Incompatible (30%)

Problem Summary

	Severity	Count
Added Symbols	-	12
Removed Symbols	High	0
Problems with Data Types	High	0
	Medium	1
	Low	0
Problems with Symbols	High	0
	Medium	4
	Low	7
Problems with Constants	Low	1
Other Changes in Constants	-	4

Added Symbols (12)

libnfnetlink.h, libnfnetlink.so.0.2.0
nfnl_addattr16 ( struct nlmsghdr* p1, int p2, int p3, u_int16_t p4 )
nfnl_catch ( struct nfnl_handle* h )
nfnl_iterator_create ( struct nfnl_handle const* h, char const* buf, size_t len )
nfnl_iterator_destroy ( struct nfnl_iterator* it )
nfnl_iterator_next ( struct nfnl_handle const* h, struct nfnl_iterator* it )
nfnl_iterator_process ( struct nfnl_handle* h, struct nfnl_iterator* it )
nfnl_join ( struct nfnl_handle const* nfnlh, unsigned int group )
nfnl_nfa_addattr16 ( struct nfattr* p1, int p2, int p3, u_int16_t p4 )
nfnl_process ( struct nfnl_handle* h, unsigned char const* buf, size_t len )
nfnl_query ( struct nfnl_handle* h, struct nlmsghdr* nlh )
nfnl_subsys_close ( struct nfnl_subsys_handle* p1 )
nfnl_subsys_open ( struct nfnl_handle* p1, u_int8_t p2, u_int8_t p3, unsigned int p4 )

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Problems with Data Types, Medium Severity (1)

	Change	Effect
1	This type became opaque.	The internal structure of this type is hidden in the new library version and may be different. This may result in crash or incorrect behavior of applications.

libnfnetlink.h
[+] struct nfnl_handle (1)

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Problems with Symbols, Medium Severity (4)

	Change	Effect
1	Parameter p1 of type struct nfnl_handle* has been removed from the calling stack.	This parameter will be ignored by the function.
2	Parameter p2 of type u_int8_t has been removed from the calling stack.	This parameter will be ignored by the function.
3	Parameter p3 of type u_int8_t has been removed from the calling stack.	This parameter will be ignored by the function.
4	Parameter p4 of type unsigned int has been removed from the calling stack.	This parameter will be ignored by the function.

libnfnetlink.h, libnfnetlink.so.0.0.0
[+] nfnl_open ( struct nfnl_handle* p1, u_int8_t p2, u_int8_t p3, unsigned int p4 ) (4)

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Problems with Symbols, Low Severity (7)

	Change	Effect
1	Type of 4th parameter p4 has been changed from void* to void const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Base type of 1st parameter p1 has been changed from struct nfnl_handle to struct nfnl_subsys_handle.	Replacement of parameter base type may indicate a change in its semantic meaning.

	Change	Effect
1	Base type of 1st parameter p1 has been changed from struct nfnl_handle to struct nfnl_subsys_handle.	Replacement of parameter base type may indicate a change in its semantic meaning.

	Change	Effect
1	Base type of 1st parameter p1 has been changed from struct nfnl_handle to struct nfnl_subsys_handle.	Replacement of parameter base type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 4th parameter p4 has been changed from void* to void const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	The pointer level of return value has been increased from 0 to 1.	Applications will treat the return value as the lower-dimension array and will not read all elements. This may change the behavior of applications.
2	Type of return value has been changed from int to struct nfnl_handle*.	Replacement of return type may indicate a change in its semantic meaning.

libnfnetlink.h, libnfnetlink.so.0.0.0
[+] nfnl_addattr_l ( struct nlmsghdr* p1, int p2, int p3, void* p4, int p5 ) (1)
[+] nfnl_callback_register ( struct nfnl_handle* p1, u_int8_t type, struct nfnl_callback* cb ) (1)
[+] nfnl_callback_unregister ( struct nfnl_handle* p1, u_int8_t type ) (1)
[+] nfnl_fill_hdr ( struct nfnl_handle* p1, struct nlmsghdr* p2, unsigned int p3, u_int8_t p4, u_int16_t p5, u_int16_t p6, u_int16_t p7 ) (1)
[+] nfnl_nfa_addattr_l ( struct nfattr* p1, int p2, int p3, void* p4, int p5 ) (1)
[+] nfnl_open ( struct nfnl_handle* p1, u_int8_t p2, u_int8_t p3, unsigned int p4 ) (2)

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Problems with Constants, Low Severity (1)

	Change	Effect
1	The value of constant NFNL_SUBSYS_COUNT has been changed from 5 to 6.	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

linux_nfnetlink.h
[+] NFNL_SUBSYS_COUNT

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Other Changes in Constants (4)

	Change	Effect
1	The constant NFNL_CB_CONTINUE with value 1 has been added.	No effect.

	Change	Effect
1	The constant NFNL_CB_FAILURE with value -1 has been added.	No effect.

	Change	Effect
1	The constant NFNL_CB_STOP with value 0 has been added.	No effect.

	Change	Effect
1	The constant NFNL_SUBSYS_CTHELPER with value 5 has been added.	No effect.

libnfnetlink.h
[+] NFNL_CB_CONTINUE
[+] NFNL_CB_FAILURE
[+] NFNL_CB_STOP

linux_nfnetlink.h
[+] NFNL_SUBSYS_CTHELPER

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Header Files (2)

libnfnetlink.h
linux_nfnetlink.h

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Shared Libraries (1)

libnfnetlink.so.0.0.0

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