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mosquitto can be configured to use password files. Those have a very trivial layout, with one "username:password" tuple per line, not unlike Apache's htpasswd file format, but unlike htpasswd files, the password can be either in clear (boo!), or encrypted (by calling into openssl's libcrypto). Encryption of passwords is done with an ad-hoc tool, mosquitto_passwd, again very like Apache's htpasswd, but the encrypted form is different (of course). This encryption is handled by mosquitto_passwd, which can create, update, or delete users, all while storing their encrypted password, or it can also convert a password file with clear-text passwords into a password file with encrypted passwords, e.g. it turns each "foo:bar" entry to their corresponding encrypted form, like "foo:$7$101$yLPgk5fn46d....==". It can be very interesting to maintain a clear-text DB of users:passwords in configuration management [0], and only convert it to encrypted passwords when embedded on the target. Add a host variant for mosquitto, which only installs mosquitto_passwd. [0] ensuring safety, confidentiality, and integrity of that DB is left as an exercise to the user, and is clearly out of scope for Buildroot, like storing the root password in the .config is. Signed-off-by: Yann E. MORIN <yann.morin@orange.com> Cc: Peter Korsgaard <peter@korsgaard.com> Cc: Titouan Christophe <titouanchristophe@gmail.com> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches