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authorNathan Skrzypczak <nathan.skrzypczak@gmail.com>2021-07-28 19:35:08 +0200
committerFlorin Coras <florin.coras@gmail.com>2021-09-16 14:14:38 +0000
commit1a9e2f96d48e346311bbc584510a14e3f721b41c (patch)
treeaefbc08b91c0c87d54792d4b32b785a5fe784b31
parent4fd9f10c4535724fd52b05d703fb56a33edc1138 (diff)
session: Add sock_name option to add_ns
This adds a new API call to add session namespaces It now takes a netns and a sock_name. (1) If no netns is passed, sock_name will be used as socket path. Defaulting to /run/vpp/app_ns_sockets/${ns_id} (2) If a netns is passed, the sock_name has to be abstract (i.e. start with '@'). It will default to `@vpp/session/${ns_id}` and will be created in the provided netns. Type: feature Change-Id: I90e9a8e5ecca2cabe7c05335663e33c8506dc9e7 Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
-rw-r--r--src/vnet/session/application_namespace.c80
-rw-r--r--src/vnet/session/application_namespace.h7
-rw-r--r--src/vnet/session/session.api35
-rw-r--r--src/vnet/session/session_api.c81
-rw-r--r--src/vnet/session/session_lookup.c24
5 files changed, 183 insertions, 44 deletions
diff --git a/src/vnet/session/application_namespace.c b/src/vnet/session/application_namespace.c
index 6d91fc362b2..c1061c08e27 100644
--- a/src/vnet/session/application_namespace.c
+++ b/src/vnet/session/application_namespace.c
@@ -40,7 +40,7 @@ app_namespace_get (u32 index)
}
app_namespace_t *
-app_namespace_get_from_id (const u8 * ns_id)
+app_namespace_get_from_id (const u8 *ns_id)
{
u32 index = app_namespace_index_from_id (ns_id);
if (index == APP_NAMESPACE_INVALID_INDEX)
@@ -55,14 +55,19 @@ app_namespace_index (app_namespace_t * app_ns)
}
app_namespace_t *
-app_namespace_alloc (u8 * ns_id)
+app_namespace_alloc (const u8 *ns_id)
{
app_namespace_t *app_ns;
+
pool_get (app_namespace_pool, app_ns);
clib_memset (app_ns, 0, sizeof (*app_ns));
- app_ns->ns_id = vec_dup (ns_id);
+
+ app_ns->ns_id = vec_dup ((u8 *) ns_id);
+ vec_terminate_c_string (app_ns->ns_id);
+
hash_set_mem (app_namespace_lookup_table, app_ns->ns_id,
app_ns - app_namespace_pool);
+
return app_ns;
}
@@ -71,6 +76,7 @@ vnet_app_namespace_add_del (vnet_app_namespace_add_del_args_t * a)
{
app_namespace_t *app_ns;
session_table_t *st;
+ int rv;
if (a->is_add)
{
@@ -105,6 +111,7 @@ vnet_app_namespace_add_del (vnet_app_namespace_add_del_args_t * a)
}
app_ns->ns_secret = a->secret;
app_ns->netns = a->netns ? vec_dup (a->netns) : 0;
+ app_ns->sock_name = a->sock_name ? vec_dup (a->sock_name) : 0;
app_ns->sw_if_index = a->sw_if_index;
app_ns->ip4_fib_index =
fib_table_find (FIB_PROTOCOL_IP4, a->ip4_fib_id);
@@ -114,7 +121,11 @@ vnet_app_namespace_add_del (vnet_app_namespace_add_del_args_t * a)
/* Add socket for namespace */
if (app_sapi_enabled)
- appns_sapi_add_ns_socket (app_ns);
+ {
+ rv = appns_sapi_add_ns_socket (app_ns);
+ if (rv)
+ return rv;
+ }
}
else
{
@@ -133,7 +144,13 @@ u32
app_namespace_index_from_id (const u8 * ns_id)
{
uword *indexp;
- indexp = hash_get_mem (app_namespace_lookup_table, ns_id);
+ u8 *key;
+
+ key = vec_dup ((u8 *) ns_id);
+ vec_terminate_c_string (key);
+
+ indexp = hash_get_mem (app_namespace_lookup_table, key);
+ vec_free (key);
if (!indexp)
return APP_NAMESPACE_INVALID_INDEX;
return *indexp;
@@ -190,6 +207,7 @@ app_namespaces_init (void)
vnet_app_namespace_add_del_args_t a = {
.ns_id = ns_id,
.netns = 0,
+ .sock_name = 0,
.secret = 0,
.sw_if_index = APP_NAMESPACE_INVALID_INDEX,
.is_add = 1
@@ -204,9 +222,11 @@ static clib_error_t *
app_ns_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
- u8 is_add = 0, *ns_id = 0, secret_set = 0, sw_if_index_set = 0, *netns = 0;
+ u8 is_add = 0, *ns_id = 0, secret_set = 0, sw_if_index_set = 0;
+ u8 *netns = 0, *sock_name = 0;
unformat_input_t _line_input, *line_input = &_line_input;
u32 sw_if_index, fib_id = APP_NAMESPACE_INVALID_INDEX;
+ vnet_main_t *vnm = vnet_get_main ();
u64 secret;
clib_error_t *error = 0;
int rv;
@@ -226,10 +246,15 @@ app_ns_fn (vlib_main_t * vm, unformat_input_t * input,
secret_set = 1;
else if (unformat (line_input, "sw_if_index %u", &sw_if_index))
sw_if_index_set = 1;
+ else if (unformat (line_input, "if %U", unformat_vnet_sw_interface, vnm,
+ &sw_if_index))
+ sw_if_index_set = 1;
else if (unformat (line_input, "fib_id", &fib_id))
;
else if (unformat (line_input, "netns %_%v%_", &netns))
;
+ else if (unformat (line_input, "sock-name %_%v%_", &sock_name))
+ ;
else
{
error = clib_error_return (0, "unknown input `%U'",
@@ -240,8 +265,8 @@ app_ns_fn (vlib_main_t * vm, unformat_input_t * input,
if (!ns_id || !secret_set || !sw_if_index_set)
{
- vlib_cli_output (vm, "namespace-id, secret and sw_if_index must be "
- "provided");
+ vlib_cli_output (vm, "namespace-id, secret and interface must be "
+ "provided");
goto done;
}
@@ -251,6 +276,7 @@ app_ns_fn (vlib_main_t * vm, unformat_input_t * input,
vnet_app_namespace_add_del_args_t args = {
.ns_id = ns_id,
.netns = netns,
+ .sock_name = sock_name,
.secret = secret,
.sw_if_index = sw_if_index,
.ip4_fib_id = fib_id,
@@ -266,6 +292,7 @@ done:
vec_free (ns_id);
vec_free (netns);
+ vec_free (sock_name);
unformat_free (line_input);
return error;
@@ -275,7 +302,7 @@ done:
VLIB_CLI_COMMAND (app_ns_command, static) = {
.path = "app ns",
.short_help = "app ns [add] id <namespace-id> secret <secret> "
- "sw_if_index <sw_if_index> [netns <ns>]",
+ "if <intfc> [netns <ns>]",
.function = app_ns_fn,
};
/* *INDENT-ON* */
@@ -284,11 +311,18 @@ u8 *
format_app_namespace (u8 * s, va_list * args)
{
app_namespace_t *app_ns = va_arg (*args, app_namespace_t *);
+ vnet_main_t *vnm = vnet_get_main ();
+
+ s = format (s, "Application namespace [%u]\nid: %s\nsecret: %lu",
+ app_namespace_index (app_ns), app_ns->ns_id, app_ns->ns_secret);
+ if (app_ns->sw_if_index != (u32) ~0)
+ s = format (s, "\nInterface: %U", format_vnet_sw_if_index_name, vnm,
+ app_ns->sw_if_index);
+ if (app_ns->netns)
+ s = format (s, "\nNetns: %s", app_ns->netns);
+ if (app_ns->sock_name)
+ s = format (s, "\nSocket: %s", app_ns->sock_name);
- s =
- format (s, "%-10u%-10lu%-15d%-15v%-15v%-40v", app_namespace_index (app_ns),
- app_ns->ns_secret, app_ns->sw_if_index, app_ns->ns_id,
- app_ns->netns, app_ns->sock_name);
return s;
}
@@ -335,8 +369,9 @@ show_app_ns_fn (vlib_main_t * vm, unformat_input_t * main_input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
- u8 *ns_id, do_table = 0, had_input = 1, do_api = 0;
+ u8 *ns_id = 0, do_table = 0, had_input = 1, do_api = 0;
app_namespace_t *app_ns;
+ vnet_main_t *vnm = vnet_get_main ();
session_table_t *st;
session_cli_return_if_not_enabled ();
@@ -349,7 +384,7 @@ show_app_ns_fn (vlib_main_t * vm, unformat_input_t * main_input,
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
- if (unformat (line_input, "table %_%v%_", &ns_id))
+ if (unformat (line_input, "id %_%v%_", &ns_id))
do_table = 1;
else if (unformat (line_input, "api-clients"))
do_api = 1;
@@ -386,18 +421,22 @@ show_app_ns_fn (vlib_main_t * vm, unformat_input_t * main_input,
vlib_cli_output (vm, "table for ns %v could not be found", ns_id);
goto done;
}
+ vlib_cli_output (vm, "%U", format_app_namespace, app_ns);
session_lookup_show_table_entries (vm, st, 0, 1);
vec_free (ns_id);
goto done;
}
do_ns_list:
- vlib_cli_output (vm, "%-10s%-10s%-15s%-15s%-15s%-40s", "Index", "Secret",
- "sw_if_index", "Id", "netns", "Socket");
+ vlib_cli_output (vm, "%-10s%-10s%-12s%-15s%-20s%-40s", "Index", "Secret",
+ "Interface", "Id", "Netns", "Socket");
/* *INDENT-OFF* */
pool_foreach (app_ns, app_namespace_pool) {
- vlib_cli_output (vm, "%U", format_app_namespace, app_ns);
+ vlib_cli_output (vm, "%-10u%-10lu%-12U%-15s%-20s%-40v",
+ app_namespace_index (app_ns), app_ns->ns_secret,
+ format_vnet_sw_if_index_name, vnm, app_ns->sw_if_index,
+ app_ns->ns_id, app_ns->netns, app_ns->sock_name);
}
/* *INDENT-ON* */
@@ -408,10 +447,9 @@ done:
}
/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (show_app_ns_command, static) =
-{
+VLIB_CLI_COMMAND (show_app_ns_command, static) = {
.path = "show app ns",
- .short_help = "show app ns [table <id> [api-clients]]",
+ .short_help = "show app ns [id <id> [api-clients]]",
.function = show_app_ns_fn,
};
/* *INDENT-ON* */
diff --git a/src/vnet/session/application_namespace.h b/src/vnet/session/application_namespace.h
index 313b2d0e63d..5449d4755c3 100644
--- a/src/vnet/session/application_namespace.h
+++ b/src/vnet/session/application_namespace.h
@@ -70,6 +70,7 @@ typedef struct _vnet_app_namespace_add_del_args
{
u8 *ns_id;
u8 *netns;
+ u8 *sock_name;
u64 secret;
u32 sw_if_index;
u32 ip4_fib_id;
@@ -79,13 +80,13 @@ typedef struct _vnet_app_namespace_add_del_args
#define APP_NAMESPACE_INVALID_INDEX ((u32)~0)
-app_namespace_t *app_namespace_alloc (u8 * ns_id);
+app_namespace_t *app_namespace_alloc (const u8 *ns_id);
app_namespace_t *app_namespace_get (u32 index);
-app_namespace_t *app_namespace_get_from_id (const u8 * ns_id);
+app_namespace_t *app_namespace_get_from_id (const u8 *ns_id);
u32 app_namespace_index (app_namespace_t * app_ns);
const u8 *app_namespace_id (app_namespace_t * app_ns);
const u8 *app_namespace_id_from_index (u32 index);
-u32 app_namespace_index_from_id (const u8 * ns_id);
+u32 app_namespace_index_from_id (const u8 *ns_id);
void app_namespaces_init (void);
int vnet_app_namespace_add_del (vnet_app_namespace_add_del_args_t * a);
u32 app_namespace_get_fib_index (app_namespace_t * app_ns, u8 fib_proto);
diff --git a/src/vnet/session/session.api b/src/vnet/session/session.api
index 43bde1afbbd..0eb773c0c28 100644
--- a/src/vnet/session/session.api
+++ b/src/vnet/session/session.api
@@ -252,6 +252,34 @@ define app_namespace_add_del_v2 {
string netns[64];
};
+/** \brief add/del application namespace
+ @param client_index - opaque cookie to identify the sender
+ client to vpp direction only
+ @param context - sender context, to match reply w/ request
+ @param secret - secret shared between app and vpp
+ @param sw_if_index - local interface that "supports" namespace. Set to
+ ~0 if no preference
+ @param ip4_fib_id - id of ip4 fib that "supports" the namespace. Ignored
+ if sw_if_index set.
+ @param ip6_fib_id - id of ip6 fib that "supports" the namespace. Ignored
+ if sw_if_index set.
+ @param namespace_id - namespace id
+ @param netns - linux net namespace
+ @param sock_name - socket name (path, abstract socket name)
+*/
+define app_namespace_add_del_v3 {
+ u32 client_index;
+ u32 context;
+ u64 secret;
+ bool is_add [default=true];
+ vl_api_interface_index_t sw_if_index [default=0xffffffff];
+ u32 ip4_fib_id;
+ u32 ip6_fib_id;
+ string namespace_id[64];
+ string netns[64];
+ string sock_name[];
+};
+
/** \brief Reply for app namespace add/del
@param context - returned sender context, to match reply w/ request
@param retval - return code
@@ -277,6 +305,13 @@ define app_namespace_add_del_v2_reply
u32 appns_index;
};
+define app_namespace_add_del_v3_reply
+{
+ u32 context;
+ i32 retval;
+ u32 appns_index;
+};
+
enum session_rule_scope {
SESSION_RULE_SCOPE_API_GLOBAL = 0,
SESSION_RULE_SCOPE_API_LOCAL = 1,
diff --git a/src/vnet/session/session_api.c b/src/vnet/session/session_api.c
index 371fcfc9271..c0ed1250dab 100644
--- a/src/vnet/session/session_api.c
+++ b/src/vnet/session/session_api.c
@@ -834,6 +834,8 @@ vl_api_app_namespace_add_del_t_handler (vl_api_app_namespace_add_del_t * mp)
vnet_app_namespace_add_del_args_t args = {
.ns_id = ns_id,
+ .netns = 0,
+ .sock_name = 0,
.secret = clib_net_to_host_u64 (mp->secret),
.sw_if_index = clib_net_to_host_u32 (mp->sw_if_index),
.ip4_fib_id = clib_net_to_host_u32 (mp->ip4_fib_id),
@@ -884,6 +886,7 @@ vl_api_app_namespace_add_del_v2_t_handler (
vnet_app_namespace_add_del_args_t args = {
.ns_id = ns_id,
.netns = netns,
+ .sock_name = 0,
.secret = clib_net_to_host_u64 (mp->secret),
.sw_if_index = clib_net_to_host_u32 (mp->sw_if_index),
.ip4_fib_id = clib_net_to_host_u32 (mp->ip4_fib_id),
@@ -896,7 +899,7 @@ vl_api_app_namespace_add_del_v2_t_handler (
appns_index = app_namespace_index_from_id (ns_id);
if (appns_index == APP_NAMESPACE_INVALID_INDEX)
{
- clib_warning ("app ns lookup failed");
+ clib_warning ("app ns lookup failed id:%s", ns_id);
rv = VNET_API_ERROR_UNSPECIFIED;
}
}
@@ -911,6 +914,54 @@ done:
}
static void
+vl_api_app_namespace_add_del_v3_t_handler (
+ vl_api_app_namespace_add_del_v3_t *mp)
+{
+ vl_api_app_namespace_add_del_v3_reply_t *rmp;
+ u8 *ns_id = 0, *netns = 0, *sock_name = 0;
+ u32 appns_index = 0;
+ int rv = 0;
+ if (session_main_is_enabled () == 0)
+ {
+ rv = VNET_API_ERROR_FEATURE_DISABLED;
+ goto done;
+ }
+ mp->namespace_id[sizeof (mp->namespace_id) - 1] = 0;
+ mp->netns[sizeof (mp->netns) - 1] = 0;
+ ns_id = format (0, "%s", &mp->namespace_id);
+ netns = format (0, "%s", &mp->netns);
+ sock_name = format (0, "%s", &mp->sock_name);
+ vnet_app_namespace_add_del_args_t args = {
+ .ns_id = ns_id,
+ .netns = netns,
+ .sock_name = sock_name,
+ .secret = clib_net_to_host_u64 (mp->secret),
+ .sw_if_index = clib_net_to_host_u32 (mp->sw_if_index),
+ .ip4_fib_id = clib_net_to_host_u32 (mp->ip4_fib_id),
+ .ip6_fib_id = clib_net_to_host_u32 (mp->ip6_fib_id),
+ .is_add = mp->is_add,
+ };
+ rv = vnet_app_namespace_add_del (&args);
+ if (!rv && mp->is_add)
+ {
+ appns_index = app_namespace_index_from_id (ns_id);
+ if (appns_index == APP_NAMESPACE_INVALID_INDEX)
+ {
+ clib_warning ("app ns lookup failed id:%s", ns_id);
+ rv = VNET_API_ERROR_UNSPECIFIED;
+ }
+ }
+ vec_free (ns_id);
+ vec_free (netns);
+ vec_free (sock_name);
+done:
+ REPLY_MACRO2 (VL_API_APP_NAMESPACE_ADD_DEL_V3_REPLY, ({
+ if (!rv)
+ rmp->appns_index = clib_host_to_net_u32 (appns_index);
+ }));
+}
+
+static void
vl_api_session_rule_add_del_t_handler (vl_api_session_rule_add_del_t * mp)
{
vl_api_session_rule_add_del_reply_t *rmp;
@@ -1722,19 +1773,27 @@ appns_sapi_add_ns_socket (app_namespace_t * app_ns)
clib_socket_t *cs;
char dir[4096];
- snprintf (dir, sizeof (dir), "%s%s", vlib_unix_get_runtime_dir (), subdir);
- err = vlib_unix_recursive_mkdir ((char *) dir);
- if (err)
+ if (app_ns->netns)
{
- clib_error_report (err);
- return -1;
+ if (!app_ns->sock_name)
+ app_ns->sock_name = format (0, "@vpp/session/%v%c", app_ns->ns_id, 0);
+ if (app_ns->sock_name[0] != '@')
+ return VNET_API_ERROR_INVALID_VALUE;
}
-
- /* Use abstract sockets if a netns was provided */
- if (app_ns->netns)
- app_ns->sock_name = format (0, "@vpp/session/%v%c", app_ns->ns_id, 0);
else
- app_ns->sock_name = format (0, "%s%v%c", dir, app_ns->ns_id, 0);
+ {
+ snprintf (dir, sizeof (dir), "%s%s", vlib_unix_get_runtime_dir (),
+ subdir);
+ err = vlib_unix_recursive_mkdir ((char *) dir);
+ if (err)
+ {
+ clib_error_report (err);
+ return VNET_API_ERROR_SYSCALL_ERROR_1;
+ }
+
+ if (!app_ns->sock_name)
+ app_ns->sock_name = format (0, "%s%v%c", dir, app_ns->ns_id, 0);
+ }
/*
* Create and initialize socket to listen on
diff --git a/src/vnet/session/session_lookup.c b/src/vnet/session/session_lookup.c
index 6e060cb119d..5cd1712f195 100644
--- a/src/vnet/session/session_lookup.c
+++ b/src/vnet/session/session_lookup.c
@@ -1452,6 +1452,7 @@ session_rule_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
u32 proto = ~0, lcl_port, rmt_port, action = 0, lcl_plen = 0, rmt_plen = 0;
+ clib_error_t *error = 0;
u32 appns_index, scope = 0;
ip46_address_t lcl_ip, rmt_ip;
u8 is_ip4 = 1, conn_set = 0;
@@ -1501,29 +1502,32 @@ session_rule_command_fn (vlib_main_t * vm, unformat_input_t * input,
else if (unformat (input, "tag %_%v%_", &tag))
;
else
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, input);
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ goto done;
+ }
}
if (proto == ~0)
{
vlib_cli_output (vm, "proto must be set");
- return 0;
+ goto done;
}
if (is_add && !conn_set && action == ~0)
{
vlib_cli_output (vm, "connection and action must be set for add");
- return 0;
+ goto done;
}
if (!is_add && !tag && !conn_set)
{
vlib_cli_output (vm, "connection or tag must be set for delete");
- return 0;
+ goto done;
}
if (vec_len (tag) > SESSION_RULE_TAG_MAX_LEN)
{
vlib_cli_output (vm, "tag too long (max u64)");
- return 0;
+ goto done;
}
if (ns_id)
@@ -1532,7 +1536,7 @@ session_rule_command_fn (vlib_main_t * vm, unformat_input_t * input,
if (!app_ns)
{
vlib_cli_output (vm, "namespace %v does not exist", ns_id);
- return 0;
+ goto done;
}
}
else
@@ -1559,10 +1563,12 @@ session_rule_command_fn (vlib_main_t * vm, unformat_input_t * input,
.scope = scope,
};
if ((rv = vnet_session_rule_add_del (&args)))
- return clib_error_return (0, "rule add del returned %u", rv);
+ error = clib_error_return (0, "rule add del returned %u", rv);
+done:
+ vec_free (ns_id);
vec_free (tag);
- return 0;
+ return error;
}
/* *INDENT-OFF* */