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SMB2/3 userspace client
License: Other
This project forked from sahlberg/libsmb2
SMB2/3 userspace client
License: Other
Libsmb2 is a userspace client library for accessing SMB2/SMB3 shares on a network. It is high performance and fully async. It supports both zero-copy for SMB READ/WRITE commands as well as compounded commands. Libsmb2 is distributed under the LGPLv2.1 licence. API === Libsmb2 implements three different APIs for accessing remote SMB shares : 1, High level synchronous posix-like API. This is a simple API for accessing a share. The functions in this API are modelled to be be similar to the corresponding POSIX functions. This API is described in libsmb.h 2, High level async posix-like API. This is a high performance, fully non-blocking and async API. The functions in this API are modelled to be be similar to the corresponding POSIX functions. This is the recommended API. This API is described in libsmb.h 3, Low level async RAW API. This is a low level API that provides direct access to the SMB2 PDUs and data structures. This API is described in libsmb-raw.h SMB URL Format ============== The SMB URL format is currently a small subset of the URL format that is defined/used by the Samba project. The goal is to eventually support the full URL format, thus making URLs interchangeable between Samba utilities and Libsmb2 but we are not there yet. smb://[<domain>;][<user>@]<server>[:<port>]/<share>[/path][?arg=val[&arg=val]*] <server> is either a hostname, an IPv4 or an IPv6 address. Arguments supported by libsmb2 are : sec=<mech> : Mechanism to use to authenticate to the server. Default is any available mech, but can be overridden by : krb5: Use Kerberos using credentials from kinit. krb5cc: Use Kerberos using credentials from credentials cache. ntlmssp : Only use NTLMSSP vers=<version> : Which SMB version to negotiate: 2: Negotiate any version of SMB2 3: Negotiate any version of SMB3 2.02, 2.10, 3.00, 3.02, 3.1.1 : negotiate a specific version. Default is to negotiate any SMB2 or SMB3 version. seal : Enable SMB3 encryption. sign : Require SMB2/3 signing. timeout : Timeout in seconds when to cancel a command. Default it 0: No timeout. NOTE:- When using krb5cc mode use smb2_set_domain() and smb2_set_password() in the examples and applications Authentication ============== Libsmb2 provides has builtin support for NTLMSSP username/password authentication. It can also, optionally, be built with (MIT) Kerberos authentication. Libsmb2 will try to build with Kerberos if these libraries are present. You can force a build without Kerberos support by using the flag --without-libkrb5 to configure. In this case only NTLMSSP authentication will be available. MIT KERBEROS ============ Authentication is implemented using MIT Kerberos and it supports both KRB5 for authentication against Active Directory as well as NTLMSSP (optional). MIT Kerberos can be configured to also provide NTLMSSP authentication, as an alternative to the builtin NTLMSSP implementation using an external mech plugin. To use this Kerberos/NTLMSSP module you will need to build and install GSS-NTLMSSP from [https://github.com/simo5/gss-ntlmssp] If you are uncertain you can skip this module and just use the NTLMSSP module that is provided by libsmb2. NTLM Authentication ------------------- NTLM credentials are stored in a text file of the form : DOMAIN:USERNAME:PASSWORD with one line per username. You need to set up the environment variable NTLM_USER_FILE to point to this file. You need one entry in this file for each local user account you want to be able to use libsmb2 for accessing a remote share. By default, NTLM authentication will use the username for the current process. This can be overridden by specifying a different username in the SMB URL : smb://guest@server/share?sec=ntlmssp KRB5 Authentication ------------------- Kerberos authentication can be used when the linux workstation as well as the file server are part of Active Directory. You should be able to authenticate to the file server using krb5 by specifying sec=krb5 in the URL : smb://server/share?sec=krb5 The application needs to set the username, password and the domain fqdn in the context using smb2_set_user(), smb2_set_password() and smb2_set_domain() respectively. NTLM Credentials ================ This applies to both the builtin NTLMSSP implementation as well as when using Kerberos with the NTLMSSP mech plugin. NTLM credentials are stored in a text file of the form : DOMAIN:USERNAME:PASSWORD with one line per username. You need to set up the environment variable NTLM_USER_FILE to point to this file. You need one entry in this file for each local user account you want to be able to use libsmb2 for accessing a remote share. By default, NTLM authentication will use the username for the current process. This can be overridden by specifying a different username in the SMB URL : smb://guest@server/share?sec=ntlmssp Alternatively you can provide the username and password from your application by calling : smb2_set_user(smb2, <username>); smb2_set_password(smb2, <password>); SMB2/3 SIGNING ============== Signing is supported with KRB5, with the builtin ntlmssp support and with gss-ntlmssp mech plugin. SMB3 Encryption =============== Encryption is only supported with KRB5 or with the builtin ntlmssp support. Encryption is not supported when the gss-ntlmssp mech plugin is used. Encryption can be enabled either using the "seal" URL argument or by calling smb3_set_seal(smb2, 1); BUILDING LIBSMB2 =============== Windows --------------------------- You have to install CMake (https://cmake.org/) and Visual Studio (https://www.visualstudio.com/) to build libsmb2 for Windows (including Universal Windows Platform). Please follow the next steps to build shared library: mkdir build cd build cmake -G "Visual Studio 15 2017" .. cmake --build . --config RelWithDebInfo Static library: mkdir build cd build cmake -G "Visual Studio 15 2017" -DBUILD_SHARED_LIBS=0 .. cmake --build . --config RelWithDebInfo macOS, iOS, tvOS, watchOS --------------------------- You can use AMSMB2 (https://github.com/amosavian/AMSMB2) universal framework which incorporates precompiled libsmb2 for Apple devices. It is written in Swift but can be used in both Swift and Objective-C codes. If you want to rebuild libsmb2 in AMSMB2, please follow these steps: git clone https://github.com/amosavian/AMSMB2 cd AMSMB2/buildtools ./build.sh Precompiled binaries don't include Kerberos support by default. If you want build libraries with Kerberos support, execute this script instead: ./build-with-krb5.sh ESP32 ----- libsmb2 is pre-configured for the ESP32 micro-controller using the esp-idf toolchain (Arduino is not supported). Simply clone this project in the 'components' directory of the ESP32 project and it will automatically be included in the build process. Raspberry Pi Pico W (RP2040) ---------------------------- libsmb2 will compile on the RP2040 using gcc-arm-none-eabi, the pico-sdk and FreeRTOS-Kernel. In examples/picow is a CMakeLists.txt that can be edited to point at the pico-sdk and FreeRTOS-Kernel, and will then build libsmb2 and a sample - this can be used as a starting point. Inside include/picow are some configuration files for lwip, FreeRTOS and any applications built with libsmb2. These can also be used as a starting point and adjusted as needed for your applications. The only define needed for libsmb2 on the RP2040, other than the RP2040 defines such as PICO_BOARD=pico_w, is PICO_PLATFORM. Playstation 2 ------------ EE, Emotion-Engine, is the main CPU for the PS2. To compile libsmb2 for the PS2 EE, first install the PS2 toolchain and PS2 SDK and set it up. To build libsmb2_ip.a, a version of libsmb2 for the EE tcpip stack: $ make -f Makefile.platform clean $ make -f Makefile.platform ps2_ee_install EE Using IOP Stack, It´s a different of EE version for when the LWIP stack is running on the IOP (libsmb2_ips and linking with -lps2ips) To build libsmb2_ips.a, a version of libsmb2 for the IOP tcpip stack: $ make -f Makefile.platform clean $ make -f Makefile.platform ps2_ips_install IOP, IO-Processor is the secondary CPU for the PS2. The library is been used to build smb2man.irx module but it doesn´t comes with the library installed, To install libsmb2 for the PS2 IOP and smb2man.irx, first install the PS2 toolchain and PS2SDK and set it up. Then to build libsmb2, run $ make -f Makefile.platform clean $ make -f Makefile.platform ps2_iop_install $ make -f Makefile.platform clean $ make -f Makefile.platform ps2_irx_install PlayStation 3 ------------- PPU, PowerPC, is the main CPU for the PS3. To compile libsmb2 for the PS3 PPU, first install the PS3 toolchain and PSL1GHT SDK and set it up. Then to build libsmb2, run $ cd lib $ make -f Makefile.PS3_PPU install The process will copy the resulting libsmb2.a and the include/smb2 headers to your PSL1GHT SDK portlibs folder. PlayStation Vita ------------- ARM® Cortex™ - A9 core (4 core), is the main CPU for the PSVITA. To compile libsmb2 for the PSVITA, first install the VitaSDK using vdpm Then to build libsmb2, run $ make vita_install -f Makefile.platform The process will copy the resulting libsmb2.a and the include/smb2 headers to your VitaSDK libs folder. PlayStation 4 ------------- x86_64 is the main CPU for the PS4. To compile libsmb2 for the PS4 PPU, first install the PS4 toolchain and OpenOrbis SDK and set it up. Then to build libsmb2, run $ make -f Makefile.platform ps4_install The process will copy the resulting libsmb2.a and the include/smb2 headers to your OpenOrbis SDK include folder. Nintendo 3DS ------------- Nintendo 3DS CPU is a ARM11 MPCore variant. To compile libsmb2 for the Nintendo 3DS, first install the devkitPro with libctru to set it up. Then to build libsmb2, run $ make -f Makefile.platform 3ds_install The process will copy the resulting libsmb2.a and the include/smb2 headers to your devkitPro 3ds portlibs folder. Nintendo Switch ------------- Nintendo Switch CPU is a Custom Nvidia Tegra X1. To compile libsmb2 for the Nintendo Switch, first install the devkitPro with libnx to set it up. Then to build libsmb2, run $ cd lib $ make -f Makefile.platform switch_install The process will copy the resulting libsmb2.a and the include/smb2 headers to your devkitPro switch portlibs folder. Nintendo Wii ------------- Nintendo Wii CPU is a Broadway PowerPC processor. To compile libsmb2 for the Nintendo Wii, first install the devkitPro with libogc using pacman to set it up. Then to build libsmb2, run $ make -f Makefile.platform wii_install The process will copy the resulting libsmb2.a and the include/smb2 headers to your devkitPro wii portlibs folder. Nintendo Gamecube ------------- Nintendo GameCube CPU is a IBM "Gekko" PowerPC CPU. To compile libsmb2 for the Gamecube, first install the devkitPro with libogc using pacman to set it up. Then to build libsmb2, run $ make -f Makefile.platform gc_install The process will copy the resulting libsmb2.a and the include/smb2 headers to your devkitPro gamecube portlibs folder. Nintendo DS ------------- Nintendo DS CPU is both ARM7TDMI and ARM946E-S. To compile libsmb2 for the Nintendo DS, first install the devkitPro with libnds using pacman to set it up. Then to build libsmb2, run $ cd lib $ make -f Makefile.platform ds_install The process will copy the resulting libsmb29.a and the include/smb2 headers to your devkitPro ds portlibs folder on: lib/arm9. Nintendo WII-U ------------- Nintendo Wii-U CPU is a IBM "Espresso" PowerPC-based 45 nm, with 4 cores and a clock speed of 1.24 GHz. To compile libsmb2 for the Nintendo WII-U, first install the devkitPro with libwut using pacman to set it up. Then to build libsmb2, run $ cd lib $ make -f Makefile.platform wiiu_install The process will copy the resulting libsmb2.a and the include/smb2 headers to your devkitPro wiiu portlibs folder. Amiga (AmigaOS) ---------------------- AmigaOS is Operating system which the main processor is a Microprocessor PowerPC. There are 3 versions: AmigaOS4(Makefile.AMIGA) AmigaOS3(Makefile.AMIGA_OS3) AmigaAROS(Makefile.AMIGA_AROS) To compile libsmb2 for the AmigaOS, you need to set newlib.library V53.40 or newer (or V53.30 as included in 4.1 FE) and filesysbox.library 54.4 or newer to set it up. Then to build libsmb2, choose the makefile acording your AmigaOS system and hit $ cd lib $ make -f Makefile.YOUR_AMIGA_OS_USED clean install The process will copy the resulting libsmb2.a and the include/smb2 headers in the bin folder inside of the lib folder NOTE: Amiga AROS is a Open Source version of AmigaOS, So do not build this version unless you are using the AmigaAROS. Dreamcast (KallistiOS) ---------------------- Hitachi SH4 in little-endian mode is the main CPU for the Dreamcast. To compile libsmb2 for the Dreamcast, first install the KOS toolchain and and set it up. Then to build libsmb2, run $ cd lib $ make -f Makefile.platform clean dc_install The process will copy the resulting libsmb2.a and the include/smb2 headers to your KallistiOS toolchain install location addons folder. NOTE: There is not yet a kos-ports entry for libsmb2 but once a versioned release that includes Dreamcast support is created installing from kos-ports will become the preferred method of installation. Xbox (Xbox XDK) ---------------------- Xbox CPU is a custom Intel Pentium III Coppermine-based processor which only supports litlle endian values. To compile libsmb2 for the Xbox, first install the Xbox XDK(with all features), Microsoft Visual C++ 2003 Professional and Windows XP. Then to build libsmb2, go to Xbox folder and open the provided .sln file, Then hit the green button to build: The process will result a libsmb2.lib. So you can copy the include files and the .lib file to your Xbox project. Xbox 360 (Xbox 360 SDK) ---------------------- Xbox 360 CPU is a PPC(PowerPC) Xenon which only supports only big endian values. To compile libsmb2 for the Xbox 360, first install the Xbox 360 SDK(with all features), Microsoft Visual C++ 2010 Ultimate and Windows XP(Recommended) or Windows 7. Then to build libsmb2, go to Xbox 360 folder and open the provided .sln file, Then hit the green button to build: The process will result a libsmb2.lib. So you can copy the include files and the .lib file to your Xbox 360 project. NOTE: Both ports was based on XBMC-360 port by BDC(Brent De Cartet) and now being updated to libsmb2 standards to best performance.
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