Changes in v8: * Implement --add, --delete, and --clear in 19/19, to add forwarding rules instead of replacing tables, delete existing rules, and explicitly clear tables * Address Laurent's comments for 15/19 and 17/19 * In 10/19, instead of passing SOCK_NONBLOCK to accept4(), explicitly set O_NONBLOCK on the listening socket. Using SOCK_NONBLOCK doesn't do what we want, as it results in setting O_NONBLOCK on the new socket rather than on the listening one * Note: 18/19 is left as it is, I didn't address pending comments yet * Note: this doesn't include yet changes for AppArmor and SELinux policies, as well as changes for the template Fedora spec file. I'm still working on them Changes in v7: * Addressed comments from Laurent in 6/18, 8/18, 9/18, 10/18, 11/18, 12/18, 14/18, 15/18 (details in commit messages of single patches, before my Signed-off-by) * Note: this doesn't include yet --add and --delete, I'm still working on that Changes in v6: * Addressed comments from Jon in 10/18, 11/18, 14/18, and 16/18 * Dodged all warnings from static checkers (Coverity Scan and clang-tidy) with changes in 10/18, 11/18, 16/18, and with a new patch, 18/18 * This does *not* include yet the implementation of --add and --delete switches for pesto as I originally intended, I'm rather far from being done with those. At the moment I just have a "mode selection" implementation for command line parsing but merging rules to / removing rules from / clearing the current table is something I barely started (and what I have at the moment isn't really valuable anyway) David wrote: --- Here's the next draft of dynamic configuration updates. This now can successfully update rules, though I've not tested it very extensively. Patches 1..8/18 are preliminary reworks that make sense even without pesto - feel free to apply if you're happy with them. I don't think the rest should be applied yet; we need to at least harden it so passt can't be blocked indefinitely by a client which sends a partial update then waits. Based on my earlier series reworking static checking invocation. TODO: - Don't allow a client which sends a partial configuration then blocks also block passt - Allow pesto to clear existing configuration, not just add - Allow pesto selectively delete existing rules, not just add Changes in v5: * If multiple clients connect at once, they're now blocked until the first one finishes, instead of later ones being discarded Changes in v4: * Merged with remainder of forward rule parsing rework series * Fix some bugs in rule checking pointed out by Laurent * Significantly cleaned up option parsing code * Changed from replacing all existing rules to adding new rules (clear and remove still TBD) * Somewhat simplified protocol (pif names and rules sent in a single pass) * pesto is now allocation free * Fixed commit message and style nits pointed out by Stefano Changes in v3: * Removed already applied ASSERT() rename * Renamed serialisation functions * Incorporated Stefano's extensions, reworked and fixed * Several additional cleanups / preliminary reworks Changes in v2: * Removed already applied cleanups * Reworked assert() patch to handle -DNDEBUG properly * Numerous extra patches: * Factored out serialisation helpers and use them for migration as well * Reworked to allow ip.[ch] and inany.[ch] to be shared with pesto * Reworks to share some forwarding rule datatypes with pesto * Implemented sending pif names and current ruleset to pesto --- David Gibson (17): conf, fwd: Stricter rule checking in fwd_rule_add() fwd_rule: Move ephemeral port probing to fwd_rule.c fwd, conf: Move rule parsing code to fwd_rule.[ch] fwd_rule: Move conflict checking back within fwd_rule_add() fwd: Generalise fwd_rules_info() pif: Limit pif names to 128 bytes fwd_rule: Fix some format specifiers pesto: Introduce stub configuration tool pesto, log: Share log.h (but not log.c) with pesto tool pesto, conf: Have pesto connect to passt and check versions pesto: Expose list of pifs to pesto and display them ip: Prepare ip.[ch] for sharing with pesto tool inany: Prepare inany.[ch] for sharing with pesto tool pesto: Read current ruleset from passt/pasta and optionally display it pesto: Parse and add new rules from command line pesto, conf: Send updated rules from pesto back to passt/pasta conf, fwd: Allow switching to new rules received from pesto Stefano Brivio (2): fwd_rule: Fix static checkers warnings in fwd_rule_add() pesto, conf, fwd_rule: Add options and modes to add, delete, clear rules .gitignore | 2 + Makefile | 53 ++-- common.h | 116 +++++++++ conf.c | 696 ++++++++++++++++++++++----------------------------- conf.h | 2 + epoll_type.h | 4 + flow.c | 4 +- fwd.c | 169 ++++--------- fwd.h | 41 +-- fwd_rule.c | 680 +++++++++++++++++++++++++++++++++++++++++++++++-- fwd_rule.h | 68 ++++- inany.c | 19 +- inany.h | 17 +- ip.c | 56 +---- ip.h | 4 +- lineread.c | 2 +- log.h | 53 +++- passt.1 | 5 + passt.c | 8 + passt.h | 8 + pesto.1 | 271 ++++++++++++++++++++ pesto.c | 520 ++++++++++++++++++++++++++++++++++++++ pesto.h | 54 ++++ pif.c | 2 +- pif.h | 7 +- serialise.c | 7 + serialise.h | 1 + siphash.h | 13 + tap.c | 52 ++++ util.h | 110 +------- 30 files changed, 2252 insertions(+), 792 deletions(-) create mode 100644 common.h create mode 100644 pesto.1 create mode 100644 pesto.c create mode 100644 pesto.h -- 2.43.0