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-rw-r--r--gnu/local.mk1
-rw-r--r--gnu/packages/fabric-management.scm3
-rw-r--r--gnu/packages/patches/ucx-tcp-iface-ioctl.patch109
3 files changed, 112 insertions, 1 deletions
diff --git a/gnu/local.mk b/gnu/local.mk
index 0bc23b92ee..8a52e98d3e 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1392,6 +1392,7 @@ dist_patch_DATA = \
%D%/packages/patches/tuxpaint-stamps-path.patch \
%D%/packages/patches/txr-shell.patch \
%D%/packages/patches/u-boot-fix-mkimage-header-verification.patch \
+ %D%/packages/patches/ucx-tcp-iface-ioctl.patch \
%D%/packages/patches/udiskie-no-appindicator.patch \
%D%/packages/patches/unzip-CVE-2014-8139.patch \
%D%/packages/patches/unzip-CVE-2014-8140.patch \
diff --git a/gnu/packages/fabric-management.scm b/gnu/packages/fabric-management.scm
index becf877f08..c31ee6e217 100644
--- a/gnu/packages/fabric-management.scm
+++ b/gnu/packages/fabric-management.scm
@@ -190,7 +190,8 @@ testing InfiniBand networks.")
(file-name (git-file-name name version))
(sha256
(base32
- "0x3clvy716i7va4m4adgx6ihjsfnzrkdizhxz5v52944dkglpc8n"))))
+ "0x3clvy716i7va4m4adgx6ihjsfnzrkdizhxz5v52944dkglpc8n"))
+ (patches (search-patches "ucx-tcp-iface-ioctl.patch"))))
(build-system gnu-build-system)
(arguments
'( ;; These are some of the flags found in 'contrib/configure-release'.
diff --git a/gnu/packages/patches/ucx-tcp-iface-ioctl.patch b/gnu/packages/patches/ucx-tcp-iface-ioctl.patch
new file mode 100644
index 0000000000..d5df7047bc
--- /dev/null
+++ b/gnu/packages/patches/ucx-tcp-iface-ioctl.patch
@@ -0,0 +1,109 @@
+Since /sys is unavailable in build environments, the list of available
+TCP network interfaces cannot be obtained via /sys/class/net. This patch
+provides alternative code that uses the SIOCGIFCONF ioctl to get the
+names of the available TCP network interfaces.
+
+diff --git a/src/uct/tcp/tcp_iface.c b/src/uct/tcp/tcp_iface.c
+index 81ad459..10024a6 100644
+--- a/src/uct/tcp/tcp_iface.c
++++ b/src/uct/tcp/tcp_iface.c
+@@ -12,6 +12,8 @@
+ #include <sys/poll.h>
+ #include <netinet/tcp.h>
+ #include <dirent.h>
++#include <net/if.h>
++#include <sys/ioctl.h>
+
+ static ucs_config_field_t uct_tcp_iface_config_table[] = {
+ {"", "MAX_SHORT=8k", NULL,
+@@ -483,6 +485,70 @@ static UCS_CLASS_DEFINE_NEW_FUNC(uct_tcp_iface_t, uct_iface_t, uct_md_h,
+ uct_worker_h, const uct_iface_params_t*,
+ const uct_iface_config_t*);
+
++/* Fetch information about available network devices through an ioctl. */
++static ucs_status_t query_devices_ioctl(uct_md_h md,
++ uct_tl_resource_desc_t **resource_p,
++ unsigned *num_resources_p)
++{
++ int sock, err, i;
++ uct_tl_resource_desc_t *resources, *tmp;
++ unsigned num_resources;
++ ucs_status_t status;
++ struct ifconf conf;
++ struct ifreq reqs[10];
++
++ conf.ifc_len = sizeof reqs;
++ conf.ifc_req = reqs;
++
++ sock = socket(SOCK_STREAM, AF_INET, 0);
++ if (sock < 0) {
++ ucs_error("socket(2) failed: %m");
++ status = UCS_ERR_IO_ERROR;
++ goto out;
++ }
++
++ err = ioctl(sock, SIOCGIFCONF, &conf);
++ if (err < 0) {
++ ucs_error("SIOCGIFCONF ioctl failed: %m");
++ status = UCS_ERR_IO_ERROR;
++ goto out;
++ }
++
++ resources = NULL;
++ num_resources = 0;
++ for (i = 0; i < conf.ifc_len / sizeof(struct ifreq); i++) {
++ const char *name = reqs[i].ifr_name;
++
++ if (!ucs_netif_is_active(name)) {
++ continue;
++ }
++
++ tmp = ucs_realloc(resources, sizeof(*resources) * (num_resources + 1),
++ "tcp resources");
++ if (tmp == NULL) {
++ ucs_free(resources);
++ status = UCS_ERR_NO_MEMORY;
++ goto out;
++ }
++ resources = tmp;
++
++ ucs_snprintf_zero(resources[i].tl_name, sizeof(resources[i].tl_name),
++ "%s", UCT_TCP_NAME);
++ ucs_snprintf_zero(resources[i].dev_name, sizeof(resources[i].dev_name),
++ "%s", name);
++ resources[i].dev_type = UCT_DEVICE_TYPE_NET;
++ ++num_resources;
++ }
++
++ *num_resources_p = num_resources;
++ *resource_p = resources;
++ status = UCS_OK;
++
++out:
++ if (sock >= 0) close(sock);
++ return status;
++}
++
+ static ucs_status_t uct_tcp_query_tl_resources(uct_md_h md,
+ uct_tl_resource_desc_t **resource_p,
+ unsigned *num_resources_p)
+@@ -496,9 +562,9 @@ static ucs_status_t uct_tcp_query_tl_resources(uct_md_h md,
+
+ dir = opendir(netdev_dir);
+ if (dir == NULL) {
+- ucs_error("opendir(%s) failed: %m", netdev_dir);
+- status = UCS_ERR_IO_ERROR;
+- goto out;
++ /* When /sys is unavailable, as can be the case in a container,
++ * resort to a good old 'ioctl'. */
++ return query_devices_ioctl(md, resource_p, num_resources_p);
+ }
+
+ resources = NULL;
+@@ -543,6 +609,5 @@ static ucs_status_t uct_tcp_query_tl_resources(uct_md_h md,
+
+ out_closedir:
+ closedir(dir);
+-out:
+ return status;
+ }