diff options
| author | Loic Poulain <loic.poulain@linaro.org> | 2020-11-06 18:33:28 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-11-11 15:29:34 -0800 |
| commit | 0baa99ee353c20e5acce15c675773d6d1b0bda05 (patch) | |
| tree | 832027a5d91db708060c9efde47d4d96fb726826 /net/qrtr | |
| parent | 87f547c108e4a12c3284ca8298d2d81a371f840e (diff) | |
| download | linux-0baa99ee353c20e5acce15c675773d6d1b0bda05.tar.bz2 | |
net: qrtr: Allow non-immediate node routing
In order to reach non-immediate remote node services that are
accessed through an intermediate node, the route to the remote
node needs to be saved.
E.g for a [node1 <=> node2 <=> node3] network
- node2 forwards node3 service to node1
- node1 must save node2 as route for reaching node3
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/qrtr')
| -rw-r--r-- | net/qrtr/qrtr.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c index d7134c558993..5d9039cb9064 100644 --- a/net/qrtr/qrtr.c +++ b/net/qrtr/qrtr.c @@ -401,12 +401,13 @@ static void qrtr_node_assign(struct qrtr_node *node, unsigned int nid) { unsigned long flags; - if (node->nid != QRTR_EP_NID_AUTO || nid == QRTR_EP_NID_AUTO) + if (nid == QRTR_EP_NID_AUTO) return; spin_lock_irqsave(&qrtr_nodes_lock, flags); radix_tree_insert(&qrtr_nodes, nid, node); - node->nid = nid; + if (node->nid == QRTR_EP_NID_AUTO) + node->nid = nid; spin_unlock_irqrestore(&qrtr_nodes_lock, flags); } @@ -494,6 +495,13 @@ int qrtr_endpoint_post(struct qrtr_endpoint *ep, const void *data, size_t len) qrtr_node_assign(node, cb->src_node); + if (cb->type == QRTR_TYPE_NEW_SERVER) { + /* Remote node endpoint can bridge other distant nodes */ + const struct qrtr_ctrl_pkt *pkt = data + hdrlen; + + qrtr_node_assign(node, le32_to_cpu(pkt->server.node)); + } + if (cb->type == QRTR_TYPE_RESUME_TX) { qrtr_tx_resume(node, skb); } else { |