Binary compatibility report for the libiw library between 28 and 29 versions on x86

Test Info

Library Name	libiw
Version #1	28
Version #2	29
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	2
Total Shared Libraries	1
Total Symbols / Types	43 / 100
Verdict	Incompatible (3.5%)

Problem Summary

	Severity	Count
Added Symbols	-	1
Removed Symbols	High	0
Problems with Data Types	High	0
	Medium	0
	Low	9
Problems with Symbols	High	0
	Medium	3
	Low	0
Problems with Constants	Low	2
Other Changes in Constants	-	22

Added Symbols (1)

iwlib.h, libiw.so.29
iw_modul_list [data]

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Problems with Symbols, Medium Severity (3)

iwlib.h, libiw.so.28
[+] iw_operation_mode [data] (1)

	Change	Effect
1	Size of this global data has been changed from 28 bytes to 32 bytes.	Applications will obtain a different value and execution may change.

[+] iw_print_pm_value ( char* buffer, int buflen, int value, int flags ) (1)

changed to:
iw_print_pm_value ( char* buffer, int buflen, int value, int flags, int we_version )

	Change	Effect
1	Parameter we_version of type int has been added to the calling stack.	This parameter will not be initialized by old clients.

[+] iw_print_retry_value ( char* buffer, int buflen, int value, int flags ) (1)

changed to:
iw_print_retry_value ( char* buffer, int buflen, int value, int flags, int we_version )

	Change	Effect
1	Parameter we_version of type int has been added to the calling stack.	This parameter will not be initialized by old clients.

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Problems with Data Types, Low Severity (9)

iwlib.h
[+] struct wireless_scan (3)

	Change	Effect
1	Field has_maxbitrate has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
2	Field maxbitrate has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
3	Size of this type has been changed from 236 bytes to 248 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

[+] affected symbols (2)

iw_process_scan ( int skfd, char* ifname, int we_version, wireless_scan_head* context )

Field 'context.result' in 4th parameter 'context' (pointer) has base type 'struct wireless_scan'.

iw_scan ( int skfd, char* ifname, int we_version, wireless_scan_head* context )

Field 'context.result' in 4th parameter 'context' (pointer) has base type 'struct wireless_scan'.

wireless.h
[+] struct iw_range (6)

	Change	Effect
1	Field bitrate_capa has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
2	Field max_pms has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
3	Field min_pms has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
4	Field modul_capa has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
5	Field pms_flags has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
6	Size of this type has been changed from 568 bytes to 588 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

[+] affected symbols (5)

iw_channel_to_freq ( int channel, double* pfreq, struct iw_range const* range )

3rd parameter 'range' (pointer) has base type 'struct iw_range'.

iw_freq_to_channel ( double freq, struct iw_range const* range )

2nd parameter 'range' (pointer) has base type 'struct iw_range'.

iw_get_range_info ( int skfd, char const* ifname, iwrange* range )

3rd parameter 'range' (pointer) has base type 'struct iw_range'.

iw_get_stats ( int skfd, char const* ifname, iwstats* stats, iwrange const* range, int has_range )

4th parameter 'range' (pointer) has base type 'struct iw_range'.

iw_print_stats ( char* buffer, int buflen, iwqual const* qual, iwrange const* range, int has_range )

4th parameter 'range' (pointer) has base type 'struct iw_range'.

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Problems with Constants, Low Severity (2)

wireless.h
[+] IW_RETRY_MODIFIER

	Change	Effect
1	The value of constant IW_RETRY_MODIFIER has been changed from 0x000F to 0x00FF.	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.

[+] WIRELESS_EXT

	Change	Effect
1	The value of constant WIRELESS_EXT has been changed from 20 to 21.	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.

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Other Changes in Constants (22)

iwlib.h
[+] IW_EV_LCP_PK_LEN

	Change	Effect
1	The constant IW_EV_LCP_PK_LEN with value (4) has been added.	No effect.

[+] IW_NUM_OPER_MODE_EXT

	Change	Effect
1	The constant IW_NUM_OPER_MODE_EXT with value 8 has been added.	No effect.

[+] IW_SIZE_MODUL_LIST

	Change	Effect
1	The constant IW_SIZE_MODUL_LIST with value 16 has been added.	No effect.

wireless.h
[+] IW_BITRATE_BROADCAST

	Change	Effect
1	The constant IW_BITRATE_BROADCAST with value 0x0002 has been added.	No effect.

[+] IW_BITRATE_TYPE

	Change	Effect
1	The constant IW_BITRATE_TYPE with value 0x00FF has been added.	No effect.

[+] IW_BITRATE_UNICAST

	Change	Effect
1	The constant IW_BITRATE_UNICAST with value 0x0001 has been added.	No effect.

[+] IW_MODUL_11A

	Change	Effect
1	The constant IW_MODUL_11A with value (IW_MODUL_OFDM_A) has been added.	No effect.

[+] IW_MODUL_ALL

	Change	Effect
1	The constant IW_MODUL_ALL with value 0x00000000 has been added.	No effect.

[+] IW_MODUL_CCK

	Change	Effect
1	The constant IW_MODUL_CCK with value 0x00000004 has been added.	No effect.

[+] IW_MODUL_CUSTOM

	Change	Effect
1	The constant IW_MODUL_CUSTOM with value 0x40000000 has been added.	No effect.

[+] IW_MODUL_DS

	Change	Effect
1	The constant IW_MODUL_DS with value 0x00000002 has been added.	No effect.

[+] IW_MODUL_FH

	Change	Effect
1	The constant IW_MODUL_FH with value 0x00000001 has been added.	No effect.

[+] IW_MODUL_OFDM_A

	Change	Effect
1	The constant IW_MODUL_OFDM_A with value 0x00000010 has been added.	No effect.

[+] IW_MODUL_OFDM_G

	Change	Effect
1	The constant IW_MODUL_OFDM_G with value 0x00000020 has been added.	No effect.

[+] IW_MODUL_PBCC

	Change	Effect
1	The constant IW_MODUL_PBCC with value 0x00000008 has been added.	No effect.

[+] IW_MODUL_TURBO

	Change	Effect
1	The constant IW_MODUL_TURBO with value 0x00000040 has been added.	No effect.

[+] IW_POWER_SAVING

	Change	Effect
1	The constant IW_POWER_SAVING with value 0x4000 has been added.	No effect.

[+] IW_QUAL_RCPI

	Change	Effect
1	The constant IW_QUAL_RCPI with value 0x80 has been added.	No effect.

[+] IW_RETRY_LONG

	Change	Effect
1	The constant IW_RETRY_LONG with value 0x0020 has been added.	No effect.

[+] IW_RETRY_SHORT

	Change	Effect
1	The constant IW_RETRY_SHORT with value 0x0010 has been added.	No effect.

[+] SIOCGIWMODUL

	Change	Effect
1	The constant SIOCGIWMODUL with value 0x8B2F has been added.	No effect.

[+] SIOCSIWMODUL

	Change	Effect
1	The constant SIOCSIWMODUL with value 0x8B2E has been added.	No effect.

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Header Files (2)

iwlib.h
wireless.h

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Shared Libraries (1)

libiw.so.28

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