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| Filename | Latest commit message | Latest commit date |
|---|---|---|
0c96d1f532
Fix the issue of wrong SMACK label (SMACK64IPIN) update when a second bind call is made to same IP address & port, but with different SMACK label (SMACK64IPIN) by second instance of server. In this case server returns with "Bind:Address already in use" error but before returning, SMACK label is updated in SMACK port-label mapping list inside smack_socket_bind() hook To fix this issue a new check has been added in smk_ipv6_port_label() function before updating the existing port entry. It checks whether the socket for matching port entry is closed or not. If it is closed then it means port is not bound and it is safe to update the existing port entry else return if port is still getting used. For checking whether socket is closed or not, one more field "smk_can_reuse" has been added in the "smk_port_label" structure. This field will be set to '1' in "smack_sk_free_security()" function which is called to free the socket security blob when the socket is being closed. In this function, port entry is searched in the SMACK port-label mapping list for the closing socket. If entry is found then "smk_can_reuse" field is set to '1'.Initially "smk_can_reuse" field is set to '0' in smk_ipv6_port_label() function after creating a new entry in the list which indicates that socket is in use. Signed-off-by: Vishal Goel <vishal.goel@samsung.com> Signed-off-by: Himanshu Shukla <himanshu.sh@samsung.com> Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> |
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.