From 565edd1d555513ab5d67a847d50d7c14c82ef6c3 Mon Sep 17 00:00:00 2001 From: Guy Shapiro Date: Thu, 22 Oct 2015 15:20:08 +0300 Subject: IB/addr: Pass network namespace as a parameter Add network namespace support to the ib_addr module. For that, all the address resolution and matching should be done using the appropriate namespace instead of init_net. This is achieved by: 1. Adding an explicit network namespace argument to exported function that require a namespace. 2. Saving the namespace in the rdma_addr_client structure. 3. Using it when calling networking functions. In order to preserve the behavior of calling modules, &init_net is passed as the parameter in calls from other modules. This is modified as namespace support is added on more levels. Signed-off-by: Haggai Eran Signed-off-by: Yotam Kenneth Signed-off-by: Shachar Raindel Signed-off-by: Guy Shapiro Signed-off-by: Doug Ledford --- drivers/infiniband/core/addr.c | 17 +++++++++-------- drivers/infiniband/core/cma.c | 1 + 2 files changed, 10 insertions(+), 8 deletions(-) (limited to 'drivers/infiniband') diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c index d3c42b3c1b51..34b1adad07aa 100644 --- a/drivers/infiniband/core/addr.c +++ b/drivers/infiniband/core/addr.c @@ -128,7 +128,7 @@ int rdma_translate_ip(struct sockaddr *addr, struct rdma_dev_addr *dev_addr, int ret = -EADDRNOTAVAIL; if (dev_addr->bound_dev_if) { - dev = dev_get_by_index(&init_net, dev_addr->bound_dev_if); + dev = dev_get_by_index(dev_addr->net, dev_addr->bound_dev_if); if (!dev) return -ENODEV; ret = rdma_copy_addr(dev_addr, dev, NULL); @@ -138,7 +138,7 @@ int rdma_translate_ip(struct sockaddr *addr, struct rdma_dev_addr *dev_addr, switch (addr->sa_family) { case AF_INET: - dev = ip_dev_find(&init_net, + dev = ip_dev_find(dev_addr->net, ((struct sockaddr_in *) addr)->sin_addr.s_addr); if (!dev) @@ -149,12 +149,11 @@ int rdma_translate_ip(struct sockaddr *addr, struct rdma_dev_addr *dev_addr, *vlan_id = rdma_vlan_dev_vlan_id(dev); dev_put(dev); break; - #if IS_ENABLED(CONFIG_IPV6) case AF_INET6: rcu_read_lock(); - for_each_netdev_rcu(&init_net, dev) { - if (ipv6_chk_addr(&init_net, + for_each_netdev_rcu(dev_addr->net, dev) { + if (ipv6_chk_addr(dev_addr->net, &((struct sockaddr_in6 *) addr)->sin6_addr, dev, 1)) { ret = rdma_copy_addr(dev_addr, dev, NULL); @@ -236,7 +235,7 @@ static int addr4_resolve(struct sockaddr_in *src_in, fl4.daddr = dst_ip; fl4.saddr = src_ip; fl4.flowi4_oif = addr->bound_dev_if; - rt = ip_route_output_key(&init_net, &fl4); + rt = ip_route_output_key(addr->net, &fl4); if (IS_ERR(rt)) { ret = PTR_ERR(rt); goto out; @@ -278,12 +277,12 @@ static int addr6_resolve(struct sockaddr_in6 *src_in, fl6.saddr = src_in->sin6_addr; fl6.flowi6_oif = addr->bound_dev_if; - dst = ip6_route_output(&init_net, NULL, &fl6); + dst = ip6_route_output(addr->net, NULL, &fl6); if ((ret = dst->error)) goto put; if (ipv6_addr_any(&fl6.saddr)) { - ret = ipv6_dev_get_saddr(&init_net, ip6_dst_idev(dst)->dev, + ret = ipv6_dev_get_saddr(addr->net, ip6_dst_idev(dst)->dev, &fl6.daddr, 0, &fl6.saddr); if (ret) goto put; @@ -477,6 +476,7 @@ int rdma_addr_find_dmac_by_grh(const union ib_gid *sgid, const union ib_gid *dgi memset(&dev_addr, 0, sizeof(dev_addr)); dev_addr.bound_dev_if = if_index; + dev_addr.net = &init_net; ctx.addr = &dev_addr; init_completion(&ctx.comp); @@ -511,6 +511,7 @@ int rdma_addr_find_smac_by_sgid(union ib_gid *sgid, u8 *smac, u16 *vlan_id) rdma_gid2ip(&gid_addr._sockaddr, sgid); memset(&dev_addr, 0, sizeof(dev_addr)); + dev_addr.net = &init_net; ret = rdma_translate_ip(&gid_addr._sockaddr, &dev_addr, vlan_id); if (ret) return ret; diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index be41784a62e4..80a8b469a9a8 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -610,6 +610,7 @@ struct rdma_cm_id *rdma_create_id(rdma_cm_event_handler event_handler, INIT_LIST_HEAD(&id_priv->listen_list); INIT_LIST_HEAD(&id_priv->mc_list); get_random_bytes(&id_priv->seq_num, sizeof id_priv->seq_num); + id_priv->id.route.addr.dev_addr.net = &init_net; return &id_priv->id; } -- cgit v1.2.3-59-g8ed1b