Binary compatibility report for the libiw library between 26 and 27 versions on x86

Test Info

Library Name	libiw
Version #1	26
Version #2	27
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	1
Total Shared Libraries	1
Total Symbols / Types	35 / 67
Verdict	Incompatible (31.4%)

Problem Summary

	Severity	Count
Added Symbols	-	7
Removed Symbols	High	0
Problems with Data Types	High	0
	Medium	4
	Low	3
Problems with Symbols	High	10
	Medium	6
	Low	13
Problems with Constants	Low	0
Other Changes in Constants	-	133

Added Symbols (7)

iwlib.h, libiw.so.27
iw_channel_to_freq ( int channel, double* pfreq, struct iw_range const* range )
iw_get_kernel_we_version ( )
iw_get_mac_addr ( int skfd, char const* name, struct ether_addr* eth, unsigned short* ptype )
iw_print_freq_value ( char* buffer, int buflen, double freq )
iw_print_txpower ( char* buffer, int buflen, struct iw_param* txpower )
iw_process_scan ( int skfd, char* ifname, int we_version, wireless_scan_head* context )
iw_scan ( int skfd, char* ifname, int we_version, wireless_scan_head* context )

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Problems with Symbols, High Severity (10)

	Change	Effect
1	Parameter ppriv of type iwprivargs** has been added to the calling stack at the middle position.	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.
2	3rd middle parameter priv has been removed from the calling stack.	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Parameter buflen of type int has been added to the calling stack at the middle position.	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Parameter buflen of type int has been added to the calling stack at the middle position.	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Parameter buflen of type int has been added to the calling stack at the middle position.	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Parameter buflen of type int has been added to the calling stack at the middle position.	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Parameter buflen of type int has been added to the calling stack at the middle position.	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Parameter buflen of type int has been added to the calling stack at the middle position.	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Parameter buflen of type int has been added to the calling stack at the middle position.	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Parameter buflen of type int has been added to the calling stack at the middle position.	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

iwlib.h, libiw.so.26
[+] iw_get_priv_info ( int skfd, char* ifname, iwprivargs* priv, int maxpriv ) (2)
[+] iw_print_bitrate ( char* buffer, int bitrate ) (1)
[+] iw_print_freq ( char* buffer, double freq ) (1)
[+] iw_print_key ( char* buffer, unsigned char* key, int key_size, int key_flags ) (1)
[+] iw_print_pm_mode ( char* buffer, int flags ) (1)
[+] iw_print_pm_value ( char* buffer, int value, int flags ) (1)
[+] iw_print_retry_value ( char* buffer, int value, int flags ) (1)
[+] iw_print_stats ( char* buffer, iwqual* qual, iwrange* range, int has_range ) (1)
[+] iw_print_timeval ( char* buffer, struct timeval const* time ) (1)

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Problems with Data Types, Medium Severity (4)

	Change	Effect
1	Field freq_flags 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.
2	Type of field key has been changed from unsigned char[64] (64 bytes) to unsigned char[32] (32 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.

	Change	Effect
1	Field enc_capa has been removed from this type.	1) Applications will access incorrect memory when attempting to access this field. 2) Size of the inclusive type has been changed.
2	Field scan_capa has been removed from this type.	Applications will access incorrect memory when attempting to access this field.

iwlib.h
[+] struct wireless_config (2)

wireless.h
[+] struct iw_range (2)

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Problems with Symbols, Medium Severity (6)

	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.

	Change	Effect
1	4th parameter maxpriv has been removed from the calling stack.	This parameter will be ignored by the function.

	Change	Effect
1	Parameter range of type iwrange const* has been added to the calling stack.	This parameter will not be initialized by old clients.
2	Parameter has_range of type int has been added to the calling stack.	This parameter will not be initialized by old clients.

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

iwlib.h, libiw.so.26
[+] iw_extract_event_stream ( struct stream_descr* stream, struct iw_event* iwe ) (1)
[+] iw_get_priv_info ( int skfd, char* ifname, iwprivargs* priv, int maxpriv ) (1)
[+] iw_get_stats ( int skfd, char* ifname, iwstats* stats ) (2)
[+] iw_print_freq ( char* buffer, double freq ) (2)

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Problems with Data Types, Low Severity (3)

	Change	Effect
1	Size of this type has been changed from 172 bytes to 144 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

	Change	Effect
1	Type of field pointer has been changed from void* to caddr_t.	Replacement of the field data type may indicate a change in the semantic meaning of the field.

	Change	Effect
1	Size of this type has been changed from 568 bytes to 564 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

iwlib.h
[+] struct wireless_config (1)

wireless.h
[+] struct iw_point (1)
[+] struct iw_range (1)

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Problems with Symbols, Low Severity (13)

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

	Change	Effect
1	Type of 2nd parameter range has been changed from struct iw_range* to struct iw_range const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter ifname has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter ifname has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter ifname has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter ifname has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter input has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter ifname has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 3rd parameter input has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter toolname has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter protocol1 has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 2nd parameter protocol2 has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter ifname has been changed from char* to char const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

iwlib.h, libiw.so.26
[+] iw_freq2float ( iwfreq* in ) (1)
[+] iw_freq_to_channel ( double freq, struct iw_range* range ) (1)
[+] iw_get_basic_config ( int skfd, char* ifname, wireless_config* info ) (1)
[+] iw_get_priv_info ( int skfd, char* ifname, iwprivargs* priv, int maxpriv ) (1)
[+] iw_get_range_info ( int skfd, char* ifname, iwrange* range ) (1)
[+] iw_get_stats ( int skfd, char* ifname, iwstats* stats ) (1)
[+] iw_in_key ( char* input, unsigned char* key ) (1)
[+] iw_in_key_full ( int skfd, char* ifname, char* input, unsigned char* key, __u16* flags ) (2)
[+] iw_print_version_info ( char* toolname ) (1)
[+] iw_protocol_compare ( char* protocol1, char* protocol2 ) (2)
[+] iw_set_basic_config ( int skfd, char* ifname, wireless_config* info ) (1)

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Other Changes in Constants (133)

	Change	Effect
1	The constant IW_CUSTOM_MAX with value 256 has been added.	No effect.

	Change	Effect
1	The constant IW_ENCODE_DISABLED with value 0x8000 has been added.	No effect.

	Change	Effect
1	The constant IW_ENCODE_ENABLED with value 0x0000 has been added.	No effect.

	Change	Effect
1	The constant IW_ENCODE_FLAGS with value 0xFF00 has been added.	No effect.

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

	Change	Effect
1	The constant IW_ENCODE_MODE with value 0xF000 has been added.	No effect.

	Change	Effect
1	The constant IW_ENCODE_NOKEY with value 0x0800 has been added.	No effect.

	Change	Effect
1	The constant IW_ENCODE_OPEN with value 0x2000 has been added.	No effect.

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

	Change	Effect
1	The constant IW_ENCODE_TEMP with value 0x0400 has been added.	No effect.

	Change	Effect
1	The constant IW_ENCODING_TOKEN_MAX with value 32 has been added.	No effect.

	Change	Effect
1	The constant IW_ESSID_MAX_SIZE with value 32 has been added.	No effect.

	Change	Effect
1	The constant IW_FREQ_AUTO with value 0x00 has been added.	No effect.

	Change	Effect
1	The constant IW_FREQ_FIXED with value 0x01 has been added.	No effect.

	Change	Effect
1	The constant IW_MAX_AP with value 64 has been added.	No effect.

	Change	Effect
1	The constant IW_MAX_BITRATES with value 32 has been added.	No effect.

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

	Change	Effect
1	The constant IW_MAX_FREQUENCIES with value 32 has been added.	No effect.

wireless.h
[+] IW_CUSTOM_MAX
[+] IW_ENCODE_DISABLED
[+] IW_ENCODE_ENABLED
[+] IW_ENCODE_FLAGS
[+] IW_ENCODE_INDEX
[+] IW_ENCODE_MODE
[+] IW_ENCODE_NOKEY
[+] IW_ENCODE_OPEN
[+] IW_ENCODE_RESTRICTED
[+] IW_ENCODE_TEMP
[+] IW_ENCODING_TOKEN_MAX
[+] IW_ESSID_MAX_SIZE
[+] IW_FREQ_AUTO
[+] IW_FREQ_FIXED
[+] IW_MAX_AP
[+] IW_MAX_BITRATES
[+] IW_MAX_ENCODING_SIZES
[+] IW_MAX_FREQUENCIES
[+] IW_MAX_SPY
[+] IW_MAX_TXPOWER
[+] IW_MODE_ADHOC
[+] IW_MODE_AUTO
[+] IW_MODE_INFRA
[+] IW_MODE_MASTER
[+] IW_MODE_MONITOR
[+] IW_MODE_REPEAT
[+] IW_MODE_SECOND
[+] IW_POWER_ALL_R
[+] IW_POWER_FORCE_S
[+] IW_POWER_MAX
[+] IW_POWER_MIN
[+] IW_POWER_MODE
[+] IW_POWER_MODIFIER
[+] IW_POWER_MULTICAST_R
[+] IW_POWER_ON
[+] IW_POWER_PERIOD
[+] IW_POWER_RELATIVE
[+] IW_POWER_REPEATER
[+] IW_POWER_TIMEOUT
[+] IW_POWER_TYPE
[+] IW_POWER_UNICAST_R
[+] IW_PRIV_SIZE_FIXED
[+] IW_PRIV_SIZE_MASK
[+] IW_PRIV_TYPE_ADDR
[+] IW_PRIV_TYPE_BYTE
[+] IW_PRIV_TYPE_CHAR
[+] IW_PRIV_TYPE_FLOAT
[+] IW_PRIV_TYPE_INT
[+] IW_PRIV_TYPE_MASK
[+] IW_PRIV_TYPE_NONE
[+] IW_QUAL_LEVEL_INVALID
[+] IW_QUAL_LEVEL_UPDATED
[+] IW_QUAL_NOISE_INVALID
[+] IW_QUAL_NOISE_UPDATED
[+] IW_QUAL_QUAL_INVALID
[+] IW_QUAL_QUAL_UPDATED
[+] IW_RETRY_LIFETIME
[+] IW_RETRY_LIMIT
[+] IW_RETRY_MAX
[+] IW_RETRY_MIN
[+] IW_RETRY_MODIFIER
[+] IW_RETRY_ON
[+] IW_RETRY_RELATIVE
[+] IW_RETRY_TYPE
[+] IW_SCAN_ALL_ESSID
[+] IW_SCAN_ALL_FREQ
[+] IW_SCAN_ALL_MODE
[+] IW_SCAN_ALL_RATE
[+] IW_SCAN_DEFAULT
[+] IW_SCAN_MAX_DATA
[+] IW_SCAN_THIS_ESSID
[+] IW_SCAN_THIS_FREQ
[+] IW_SCAN_THIS_MODE
[+] IW_SCAN_THIS_RATE
[+] IW_TXPOW_DBM
[+] IW_TXPOW_MWATT
[+] IW_TXPOW_RANGE
[+] IW_TXPOW_RELATIVE
[+] IW_TXPOW_TYPE
[+] IWEVCUSTOM
[+] IWEVEXPIRED
[+] IWEVFIRST
[+] IWEVQUAL
[+] IWEVREGISTERED
[+] IWEVTXDROP
[+] SIOCGIWAP
[+] SIOCGIWAPLIST
[+] SIOCGIWENCODE
[+] SIOCGIWESSID
[+] SIOCGIWFRAG
[+] SIOCGIWFREQ
[+] SIOCGIWMODE
[+] SIOCGIWNAME
[+] SIOCGIWNICKN
[+] SIOCGIWNWID
[+] SIOCGIWPOWER
[+] SIOCGIWPRIV
[+] SIOCGIWRANGE
[+] SIOCGIWRATE
[+] SIOCGIWRETRY
[+] SIOCGIWRTS
[+] SIOCGIWSCAN
[+] SIOCGIWSENS
[+] SIOCGIWSPY
[+] SIOCGIWSTATS
[+] SIOCGIWTHRSPY
[+] SIOCGIWTXPOW
[+] SIOCIWFIRST
[+] SIOCIWFIRSTPRIV
[+] SIOCIWLAST
[+] SIOCIWLASTPRIV
[+] SIOCSIWAP
[+] SIOCSIWCOMMIT
[+] SIOCSIWENCODE
[+] SIOCSIWESSID
[+] SIOCSIWFRAG
[+] SIOCSIWFREQ
[+] SIOCSIWMODE
[+] SIOCSIWNICKN
[+] SIOCSIWNWID
[+] SIOCSIWPOWER
[+] SIOCSIWPRIV
[+] SIOCSIWRANGE
[+] SIOCSIWRATE
[+] SIOCSIWRETRY
[+] SIOCSIWRTS
[+] SIOCSIWSCAN
[+] SIOCSIWSENS
[+] SIOCSIWSPY
[+] SIOCSIWSTATS
[+] SIOCSIWTHRSPY
[+] SIOCSIWTXPOW
[+] WIRELESS_EXT

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Header Files (1)

iwlib.h

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Shared Libraries (1)

libiw.so.26

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