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Message-ID: <20150219192726.GA17950@alexpilon.ca> Date: Thu, 19 Feb 2015 14:27:46 -0500 From: Alex Pilon <alp@...xpilon.ca> To: netdev@...r.kernel.org Subject: [PATCH] Allow specifying bridge port STP state by name rather than number. The existing behaviour forces one to memorize the integer constants for STP port states. # bridge link set dev dummy0 state 3 This patch makes it possible to use the lowercased port state name. # bridge link set dev dummy0 state forwarding Invalid non-integer inputs now cause exit with status -1. Signed-off-by: Alex Pilon <alp@...xpilon.ca> --- bridge/link.c | 14 +++++++++++++- man/man8/bridge.8 | 4 +++- 2 files changed, 16 insertions(+), 2 deletions(-) diff --git a/bridge/link.c b/bridge/link.c index c8555f8..a7bd85f 100644 --- a/bridge/link.c +++ b/bridge/link.c @@ -316,7 +316,19 @@ static int brlink_modify(int argc, char **argv) priority = atoi(*argv); } else if (strcmp(*argv, "state") == 0) { NEXT_ARG(); - state = atoi(*argv); + char *endptr; + size_t nstates = sizeof(port_states) / sizeof(*port_states); + state = strtol(*argv, &endptr, 10); + if (!(**argv != '\0' && *endptr == '\0')) { + for (state = 0; state < nstates; state++) + if (strcmp(port_states[state], *argv) == 0) + break; + if (state == nstates) { + fprintf(stderr, + "Error: invalid STP port state\n"); + exit(-1); + } + } } else if (strcmp(*argv, "hwmode") == 0) { NEXT_ARG(); flags = BRIDGE_FLAGS_SELF; diff --git a/man/man8/bridge.8 b/man/man8/bridge.8 index e344db2..68ad71e 100644 --- a/man/man8/bridge.8 +++ b/man/man8/bridge.8 @@ -207,7 +207,9 @@ droot port selectio algorithms. .TP .BI state " STATE " the operation state of the port. This is primarily used by user space STP/RSTP -implementation. The following is a list of valid values: +implementation. One may enter a lowercased port state name, or one of the +numbers below. Negative inputs are ignored, and unrecognized names return an +error. .B 0 - port is DISABLED. Make this port completely inactive. -- 2.3.0 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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