9 Jan
2014
9 Jan
'14
2:30 p.m.
This patch adds a generic keep alive configuration layer that mainly
consists of additional fields in e1_input structs and VTY commands
and extensions.
Ticket: OW#1060
Sponsored-by: On-Waves ehf
---
include/osmocom/abis/e1_input.h | 7 ++++
src/e1_input_vty.c | 69 +++++++++++++++++++++++++++++++++++++++
2 files changed, 76 insertions(+)
diff --git a/include/osmocom/abis/e1_input.h b/include/osmocom/abis/e1_input.h
index 0abf0b8..70df565 100644
--- a/include/osmocom/abis/e1_input.h
+++ b/include/osmocom/abis/e1_input.h
@@ -12,6 +12,7 @@
#include <osmocom/abis/lapd.h>
#define NUM_E1_TS 32
+#define E1INP_USE_DEFAULT (-1)
enum e1inp_sign_type {
E1INP_SIGN_NONE,
@@ -134,6 +135,7 @@ struct e1inp_driver {
void (*close)(struct e1inp_sign_link *link);
void (*vty_show)(struct vty *vty, struct e1inp_line *line);
int default_delay;
+ int has_keepalive;
};
struct e1inp_line_ops {
@@ -163,6 +165,11 @@ struct e1inp_line {
unsigned int port_nr;
struct rate_ctr_group *rate_ctr;
+ /* keepalive configuration */
+ int keepalive_idle_timeout; /* 0: disable, secs, or E1INP_USE_DEFAULT */
+ int keepalive_num_probes; /* 0: disable, num, or E1INP_USE_DEFAULT */
+ int keepalive_probe_interval; /* 0: disable, secs, or E1INP_USE_DEFAULT */
+
/* array of timestlots */
struct e1inp_ts ts[NUM_E1_TS];
unsigned int num_ts;
diff --git a/src/e1_input_vty.c b/src/e1_input_vty.c
index d99c853..0b4adb2 100644
--- a/src/e1_input_vty.c
+++ b/src/e1_input_vty.c
@@ -88,6 +88,56 @@ DEFUN(cfg_e1line_port, cfg_e1_line_port_cmd,
return CMD_SUCCESS;
}
+#define KEEPALIVE_HELP "Enable keep-alive probing\n"
+static int set_keepalive_params(struct vty *vty, int e1_nr,
+ int idle, int num_probes, int probe_interval)
+{
+ struct e1inp_line *line = e1inp_line_find(e1_nr);
+
+ if (!line) {
+ vty_out(vty, "%% Line %d doesn't exist%s", e1_nr, VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+ if (!line->driver->has_keepalive && num_probes != 0) {
+ vty_out(vty, "%% Driver '%s' does not support keep alive%s",
+ line->driver->name, VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ line->keepalive_idle_timeout = idle;
+ line->keepalive_num_probes = num_probes;
+ line->keepalive_probe_interval = probe_interval;
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_e1line_keepalive, cfg_e1_line_keepalive_cmd,
+ "e1_line <0-255> keepalive",
+ E1_LINE_HELP KEEPALIVE_HELP)
+{
+ return set_keepalive_params(vty, atoi(argv[0]),
+ E1INP_USE_DEFAULT, E1INP_USE_DEFAULT,
+ E1INP_USE_DEFAULT);
+}
+
+DEFUN(cfg_e1line_keepalive_params, cfg_e1_line_keepalive_params_cmd,
+ "e1_line <0-255> keepalive <1-300> <1-20> <1-300>",
+ E1_LINE_HELP KEEPALIVE_HELP
+ "Idle interval in seconds before probes are sent\n"
+ "Number of probes to sent\n"
+ "Delay between probe packets in seconds\n")
+{
+ return set_keepalive_params(vty, atoi(argv[0]),
+ atoi(argv[1]), atoi(argv[2]), atoi(argv[3]));
+}
+
+DEFUN(cfg_e1line_no_keepalive, cfg_e1_line_no_keepalive_cmd,
+ "no e1_line <0-255> keepalive",
+ NO_STR E1_LINE_HELP KEEPALIVE_HELP)
+{
+ return set_keepalive_params(vty, atoi(argv[0]), 0, 0, 0);
+}
+
DEFUN(cfg_e1line_name, cfg_e1_line_name_cmd,
"e1_line <0-255> name .LINE",
E1_LINE_HELP "Set name for this line\n" "Human readable name\n")
@@ -135,6 +185,22 @@ static int e1inp_config_write(struct vty *vty)
if (line->name)
vty_out(vty, " e1_line %u name %s%s", line->num,
line->name, VTY_NEWLINE);
+ if (!line->keepalive_num_probes)
+ vty_out(vty, " no e1_line %u keepalive%s", line->num,
+ VTY_NEWLINE);
+ else if (line->keepalive_idle_timeout == E1INP_USE_DEFAULT &&
+ line->keepalive_num_probes == E1INP_USE_DEFAULT &&
+ line->keepalive_probe_interval == E1INP_USE_DEFAULT)
+ vty_out(vty, " e1_line %u keepalive%s", line->num,
+ VTY_NEWLINE);
+ else
+ vty_out(vty, " e1_line %u keepalive %d %d %d%s",
+ line->num,
+ line->keepalive_idle_timeout,
+ line->keepalive_num_probes,
+ line->keepalive_probe_interval,
+ VTY_NEWLINE);
+
}
return CMD_SUCCESS;
}
@@ -281,6 +347,9 @@ int e1inp_vty_init(void)
install_element(L_E1INP_NODE, &cfg_e1_line_driver_cmd);
install_element(L_E1INP_NODE, &cfg_e1_line_port_cmd);
install_element(L_E1INP_NODE, &cfg_e1_line_name_cmd);
+ install_element(L_E1INP_NODE, &cfg_e1_line_keepalive_cmd);
+ install_element(L_E1INP_NODE, &cfg_e1_line_keepalive_params_cmd);
+ install_element(L_E1INP_NODE, &cfg_e1_line_no_keepalive_cmd);
install_element_ve(&show_e1drv_cmd);
install_element_ve(&show_e1line_cmd);
--
1.7.9.5