From 40ca5385e97f393d0c231446f117ad43465735a7 Mon Sep 17 00:00:00 2001 From: Dimitri Staessens Date: Sun, 6 Mar 2022 15:15:51 +0100 Subject: ipdpd: Pass MPL to application at flow_allocation The maximum packet lifetime (MPL) is a property of the flow that needs to be passed to the reliable transmission protocol (FRCP) for its correct operation. Previously, the value of MPL was set fixed as one of the (fixed) Delta-t parameters. This patch makes the MPL a property of the layer, and it can now be set per layer-type at build time. This is a step towards a proper MPL estimator in the flow allocator. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders --- src/ipcpd/eth/eth.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'src/ipcpd/eth/eth.c') diff --git a/src/ipcpd/eth/eth.c b/src/ipcpd/eth/eth.c index 8b34d303..f62bd0a7 100644 --- a/src/ipcpd/eth/eth.c +++ b/src/ipcpd/eth/eth.c @@ -575,6 +575,7 @@ static int eth_ipcp_req(uint8_t * r_addr, struct timespec ts = {0, ALLOC_TIMEO * MILLION}; struct timespec abstime; int fd; + time_t mpl = IPCP_ETH_MPL; clock_gettime(PTHREAD_COND_CLOCK, &abstime); @@ -594,7 +595,7 @@ static int eth_ipcp_req(uint8_t * r_addr, } /* reply to IRM, called under lock to prevent race */ - fd = ipcp_flow_req_arr(dst, ipcp_dir_hash_len(), qs, data, len); + fd = ipcp_flow_req_arr(dst, ipcp_dir_hash_len(), qs, mpl, data, len); if (fd < 0) { pthread_mutex_unlock(&ipcpi.alloc_lock); log_err("Could not get new flow from IRMd."); @@ -636,8 +637,9 @@ static int eth_ipcp_alloc_reply(uint8_t * r_addr, const void * data, size_t len) { - int ret = 0; - int fd = -1; + int ret = 0; + int fd = -1; + time_t mpl = IPCP_ETH_MPL; pthread_rwlock_wrlock(ð_data.flows_lock); @@ -672,7 +674,7 @@ static int eth_ipcp_alloc_reply(uint8_t * r_addr, #elif defined(BUILD_ETH_LLC) log_dbg("Flow reply, fd %d, SSAP %d, DSAP %d.", fd, ssap, dsap); #endif - if ((ret = ipcp_flow_alloc_reply(fd, response, data, len)) < 0) + if ((ret = ipcp_flow_alloc_reply(fd, response, mpl, data, len)) < 0) return -1; return ret; -- cgit v1.2.3