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pespin gerrit-no-reply at lists.osmocom.orgpespin has submitted this change and it was merged. ( https://gerrit.osmocom.org/c/libosmocore/+/15546 )
Change subject: tdef: Introduce min_val and max_val fields
......................................................................
tdef: Introduce min_val and max_val fields
This is useful for timers expected to have a range of valid or expected
values.
Validation is done at runtime when timer values are set by the app or by
the user through the VTY.
Related: OS#4190
Change-Id: I4661ac41c29a009a1d5fc57d87aaee6041c7d1b2
---
M TODO-RELEASE
M include/osmocom/core/tdef.h
M src/tdef.c
M src/vty/tdef_vty.c
M tests/tdef/tdef_test.c
M tests/tdef/tdef_test.ok
M tests/tdef/tdef_vty_test_config_root.c
M tests/tdef/tdef_vty_test_config_root.vty
8 files changed, 175 insertions(+), 13 deletions(-)
Approvals:
laforge: Looks good to me, but someone else must approve
fixeria: Looks good to me, but someone else must approve
pespin: Looks good to me, approved
Jenkins Builder: Verified
diff --git a/TODO-RELEASE b/TODO-RELEASE
index 665ecf7..547b5a9 100644
--- a/TODO-RELEASE
+++ b/TODO-RELEASE
@@ -8,3 +8,4 @@
# If any interfaces have been removed or changed since the last public release: c:r:0.
#library what description / commit summary line
core osmo_tdef_get() change val_if_not_present arg from unsigned long to long to allow passing -1
+core struct osmo_tdef fields min_val,max_val added, ABI break (arrays of structs used in programs)
diff --git a/include/osmocom/core/tdef.h b/include/osmocom/core/tdef.h
index 8155688..54819d9 100644
--- a/include/osmocom/core/tdef.h
+++ b/include/osmocom/core/tdef.h
@@ -77,6 +77,10 @@
/*! Currently active timeout value, e.g. set by user config. This is the only mutable member: a user may
* configure the timeout value, but neither unit nor any other field. */
unsigned long val;
+ /*! Minimum timer value (in this tdef unit), checked if set (not zero). */
+ unsigned long min_val;
+ /*! Maximum timer value (in this tdef unit), checked if set (not zero). */
+ unsigned long max_val;
};
/*! Iterate an array of struct osmo_tdef, the last item should be fully zero, i.e. "{}".
@@ -98,6 +102,8 @@
long val_if_not_present);
struct osmo_tdef *osmo_tdef_get_entry(struct osmo_tdef *tdefs, int T);
int osmo_tdef_set(struct osmo_tdef *tdefs, int T, unsigned long val, enum osmo_tdef_unit val_unit);
+bool osmo_tdef_val_in_range(struct osmo_tdef *tdef, unsigned long new_val);
+int osmo_tdef_range_str_buf(char *buf, size_t buf_len, struct osmo_tdef *t);
/*! Using osmo_tdef for osmo_fsm_inst: array entry for a mapping of state numbers to timeout definitions.
* For a usage example, see osmo_tdef_get_state_timeout() and test_tdef_state_timeout() in tdef_test.c. */
diff --git a/src/tdef.c b/src/tdef.c
index ab6a51b..94d987f 100644
--- a/src/tdef.c
+++ b/src/tdef.c
@@ -136,14 +136,22 @@
/*! Set all osmo_tdef values to the default_val.
* It is convenient to define a tdefs array by setting only the default_val, and calling osmo_tdefs_reset() once for
- * program startup. (See also osmo_tdef_vty_init())
+ * program startup. (See also osmo_tdef_vty_init()).
+ * During call to this function, default values are verified to be inside valid range; process is aborted otherwise.
* \param[in] tdefs Array of timer definitions, last entry being fully zero.
*/
void osmo_tdefs_reset(struct osmo_tdef *tdefs)
{
struct osmo_tdef *t;
- osmo_tdef_for_each(t, tdefs)
+ osmo_tdef_for_each(t, tdefs) {
+ if (!osmo_tdef_val_in_range(t, t->default_val)) {
+ char range_str[64];
+ osmo_tdef_range_str_buf(range_str, sizeof(range_str), t);
+ osmo_panic("%s:%d Timer " OSMO_T_FMT " contains default value %lu not in range %s\n",
+ __FILE__, __LINE__, OSMO_T_FMT_ARGS(t->T), t->default_val, range_str);
+ }
t->val = t->default_val;
+ }
}
/*! Return the value of a T timer from a list of osmo_tdef, in the given unit.
@@ -221,13 +229,55 @@
*/
int osmo_tdef_set(struct osmo_tdef *tdefs, int T, unsigned long val, enum osmo_tdef_unit val_unit)
{
+ unsigned long new_val;
struct osmo_tdef *t = osmo_tdef_get_entry(tdefs, T);
if (!t)
return -EEXIST;
- t->val = osmo_tdef_round(val, val_unit, t->unit);
+
+ new_val = osmo_tdef_round(val, val_unit, t->unit);
+ if (!osmo_tdef_val_in_range(t, new_val))
+ return -ERANGE;
+
+ t->val = new_val;
return 0;
}
+/*! Check if value new_val is in range of valid possible values for timer entry tdef.
+ * \param[in] tdef Timer entry from a timer definition table.
+ * \param[in] new_val The value whose validity to check, in units as per this timer entry.
+ * \return true if inside range, false otherwise.
+ */
+bool osmo_tdef_val_in_range(struct osmo_tdef *tdef, unsigned long new_val)
+{
+ return new_val >= tdef->min_val && (!tdef->max_val || new_val <= tdef->max_val);
+}
+
+/*! Write string representation of osmo_tdef range into buf.
+ * \param[in] buf The buffer where the string representation is stored.
+ * \param[in] buf_len Length of buffer in bytes.
+ * \param[in] tdef Timer entry from a timer definition table.
+ * \return The number of characters printed on success, negative on error. See snprintf().
+ */
+int osmo_tdef_range_str_buf(char *buf, size_t buf_len, struct osmo_tdef *t)
+{
+ int ret, len = 0, offset = 0, rem = buf_len;
+
+ buf[0] = '\0';
+ ret = snprintf(buf + offset, rem, "[%lu .. ", t->min_val);
+ if (ret < 0)
+ return ret;
+ OSMO_SNPRINTF_RET(ret, rem, offset, len);
+
+ if (t->max_val)
+ ret = snprintf(buf + offset, rem, "%lu]", t->max_val);
+ else
+ ret = snprintf(buf + offset, rem, "inf]");
+ if (ret < 0)
+ return ret;
+ OSMO_SNPRINTF_RET(ret, rem, offset, len);
+ return ret;
+}
+
/*! Using osmo_tdef for osmo_fsm_inst: find a given state's osmo_tdef_state_timeout entry.
*
* The timeouts_array shall contain exactly 32 elements, regardless whether only some of them are actually populated
diff --git a/src/vty/tdef_vty.c b/src/vty/tdef_vty.c
index eb05c3c..4549a61 100644
--- a/src/vty/tdef_vty.c
+++ b/src/vty/tdef_vty.c
@@ -115,12 +115,22 @@
*/
int osmo_tdef_vty_set_cmd(struct vty *vty, struct osmo_tdef *tdefs, const char **args)
{
+ unsigned long new_val;
const char *T_arg = args[0];
const char *val_arg = args[1];
struct osmo_tdef *t = osmo_tdef_vty_parse_T_arg(vty, tdefs, T_arg);
if (!t)
return CMD_WARNING;
- t->val = osmo_tdef_vty_parse_val_arg(val_arg, t->default_val);
+ new_val = osmo_tdef_vty_parse_val_arg(val_arg, t->default_val);
+
+ if (!osmo_tdef_val_in_range(t, new_val)) {
+ char range_str[64];
+ osmo_tdef_range_str_buf(range_str, sizeof(range_str), t);
+ vty_out(vty, "%% Timer " OSMO_T_FMT " value %lu is out of range %s%s",
+ OSMO_T_FMT_ARGS(t->T), new_val, range_str, VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+ t->val = new_val;
return CMD_SUCCESS;
}
@@ -161,18 +171,29 @@
*/
void osmo_tdef_vty_out_one_va(struct vty *vty, struct osmo_tdef *t, const char *prefix_fmt, va_list va)
{
+ char range_str[64];
+
if (!t) {
vty_out(vty, "%% Error: no such timer%s", VTY_NEWLINE);
return;
}
if (prefix_fmt)
vty_out_va(vty, prefix_fmt, va);
- vty_out(vty, OSMO_T_FMT " = %lu%s%s\t%s (default: %lu%s%s)%s",
- OSMO_T_FMT_ARGS(t->T), t->val,
- t->unit == OSMO_TDEF_CUSTOM ? "" : " ", t->unit == OSMO_TDEF_CUSTOM ? "" : osmo_tdef_unit_name(t->unit),
- t->desc, t->default_val,
- t->unit == OSMO_TDEF_CUSTOM ? "" : " ", t->unit == OSMO_TDEF_CUSTOM ? "" : osmo_tdef_unit_name(t->unit),
- VTY_NEWLINE);
+
+ vty_out(vty, OSMO_T_FMT " = %lu", OSMO_T_FMT_ARGS(t->T), t->val);
+ if (t->unit != OSMO_TDEF_CUSTOM)
+ vty_out(vty, " %s", osmo_tdef_unit_name(t->unit));
+
+ vty_out(vty, "\t%s (default: %lu", t->desc, t->default_val);
+ if (t->unit != OSMO_TDEF_CUSTOM)
+ vty_out(vty, " %s", osmo_tdef_unit_name(t->unit));
+
+ if (t->min_val || t->max_val) {
+ osmo_tdef_range_str_buf(range_str, sizeof(range_str), t);
+ vty_out(vty, ", range: %s", range_str);
+ }
+
+ vty_out(vty, ")%s", VTY_NEWLINE);
}
/*! Write to VTY the current status of one timer.
diff --git a/tests/tdef/tdef_test.c b/tests/tdef/tdef_test.c
index 12ca802..60066b1 100644
--- a/tests/tdef/tdef_test.c
+++ b/tests/tdef/tdef_test.c
@@ -41,7 +41,7 @@
{ .T=3, .default_val=100, .unit=OSMO_TDEF_M, .desc="100m" },
{ .T=4, .default_val=100, .unit=OSMO_TDEF_CUSTOM, .desc="100 potatoes" },
- { .T=7, .default_val=50, .desc="Water Boiling Timeout" }, // default is .unit=OSMO_TDEF_S == 0
+ { .T=7, .default_val=50, .desc="Water Boiling Timeout", .min_val=20, .max_val=800 }, // default is .unit=OSMO_TDEF_S == 0
{ .T=8, .default_val=300, .desc="Tea brewing" },
{ .T=9, .default_val=5, .unit=OSMO_TDEF_M, .desc="Let tea cool down before drinking" },
{ .T=10, .default_val=20, .unit=OSMO_TDEF_M, .desc="Forgot to drink tea while it's warm" },
@@ -143,8 +143,9 @@
struct osmo_tdef *t;
printf("\n%s()\n", __func__);
- t = osmo_tdef_get_entry(tdefs, 7);
printf("setting 7 = 42\n");
+ t = osmo_tdef_get_entry(tdefs, 7);
+ OSMO_ASSERT(osmo_tdef_val_in_range(t, 42));
t->val = 42;
print_tdef_info(7);
print_tdef_get_short(tdefs, 7, OSMO_TDEF_MS);
@@ -153,7 +154,25 @@
print_tdef_get_short(tdefs, 7, OSMO_TDEF_CUSTOM);
printf("setting 7 = 420\n");
- t->val = 420;
+ OSMO_ASSERT(osmo_tdef_set(tdefs, 7, 420, OSMO_TDEF_S) == 0);
+ print_tdef_info(7);
+ print_tdef_get_short(tdefs, 7, OSMO_TDEF_MS);
+ print_tdef_get_short(tdefs, 7, OSMO_TDEF_S);
+ print_tdef_get_short(tdefs, 7, OSMO_TDEF_M);
+ print_tdef_get_short(tdefs, 7, OSMO_TDEF_CUSTOM);
+
+ printf("setting 7 = 10 (ERANGE)\n");
+ OSMO_ASSERT(!osmo_tdef_val_in_range(t, 10));
+ OSMO_ASSERT(osmo_tdef_set(tdefs, 7, 10, OSMO_TDEF_S) == -ERANGE);
+ print_tdef_info(7);
+ print_tdef_get_short(tdefs, 7, OSMO_TDEF_MS);
+ print_tdef_get_short(tdefs, 7, OSMO_TDEF_S);
+ print_tdef_get_short(tdefs, 7, OSMO_TDEF_M);
+ print_tdef_get_short(tdefs, 7, OSMO_TDEF_CUSTOM);
+
+ printf("setting 7 = 900 (ERANGE)\n");
+ OSMO_ASSERT(!osmo_tdef_val_in_range(t, 900));
+ OSMO_ASSERT(osmo_tdef_set(tdefs, 7, 900, OSMO_TDEF_S) == -ERANGE);
print_tdef_info(7);
print_tdef_get_short(tdefs, 7, OSMO_TDEF_MS);
print_tdef_get_short(tdefs, 7, OSMO_TDEF_S);
diff --git a/tests/tdef/tdef_test.ok b/tests/tdef/tdef_test.ok
index d9ef99b..2a3617e 100644
--- a/tests/tdef/tdef_test.ok
+++ b/tests/tdef/tdef_test.ok
@@ -105,6 +105,18 @@
osmo_tdef_get(7, s) = 420
osmo_tdef_get(7, m) = 7
osmo_tdef_get(7, custom-unit) = 420
+setting 7 = 10 (ERANGE)
+T7=420s(def=50)
+osmo_tdef_get(7, ms) = 420000
+osmo_tdef_get(7, s) = 420
+osmo_tdef_get(7, m) = 7
+osmo_tdef_get(7, custom-unit) = 420
+setting 7 = 900 (ERANGE)
+T7=420s(def=50)
+osmo_tdef_get(7, ms) = 420000
+osmo_tdef_get(7, s) = 420
+osmo_tdef_get(7, m) = 7
+osmo_tdef_get(7, custom-unit) = 420
resetting
T7=50s
osmo_tdef_get(7, s) = 50
diff --git a/tests/tdef/tdef_vty_test_config_root.c b/tests/tdef/tdef_vty_test_config_root.c
index d69e028..92113e8 100644
--- a/tests/tdef/tdef_vty_test_config_root.c
+++ b/tests/tdef/tdef_vty_test_config_root.c
@@ -55,6 +55,9 @@
{ .T=4, .default_val=100, .unit=OSMO_TDEF_CUSTOM, .desc="Testing a hundred potatoes" },
{ .T=0x7fffffff, .default_val=0xffffffff, .unit=OSMO_TDEF_M, .desc="Very large" },
{ .T=-23, .default_val=239471, .desc="Negative T number" },
+ { .T=30, .default_val=50, .desc="Testing range min", .min_val=20 },
+ { .T=31, .default_val=50, .desc="Testing range max", .max_val=52 },
+ { .T=32, .default_val=50, .desc="Testing range both", .min_val=20, .max_val=52 },
{} // <-- important! last entry shall be zero
};
diff --git a/tests/tdef/tdef_vty_test_config_root.vty b/tests/tdef/tdef_vty_test_config_root.vty
index f3aba0f..6a53b80 100644
--- a/tests/tdef/tdef_vty_test_config_root.vty
+++ b/tests/tdef/tdef_vty_test_config_root.vty
@@ -22,6 +22,9 @@
test: T4 = 100 Testing a hundred potatoes (default: 100)
test: T2147483647 = 4294967295 m Very large (default: 4294967295 m)
test: X23 = 239471 s Negative T number (default: 239471 s)
+test: T30 = 50 s Testing range min (default: 50 s, range: [20 .. inf])
+test: T31 = 50 s Testing range max (default: 50 s, range: [0 .. 52])
+test: T32 = 50 s Testing range both (default: 50 s, range: [20 .. 52])
software: T1 = 30 m Write code (default: 30 m)
software: T2 = 20 ms Hit segfault (default: 20 ms)
software: T3 = 480 m Fix bugs (default: 480 m)
@@ -38,6 +41,9 @@
test: T4 = 100 Testing a hundred potatoes (default: 100)
test: T2147483647 = 4294967295 m Very large (default: 4294967295 m)
test: X23 = 239471 s Negative T number (default: 239471 s)
+test: T30 = 50 s Testing range min (default: 50 s, range: [20 .. inf])
+test: T31 = 50 s Testing range max (default: 50 s, range: [0 .. 52])
+test: T32 = 50 s Testing range both (default: 50 s, range: [20 .. 52])
software: T1 = 30 m Write code (default: 30 m)
software: T2 = 20 ms Hit segfault (default: 20 ms)
software: T3 = 480 m Fix bugs (default: 480 m)
@@ -83,6 +89,9 @@
test: T4 = 100 Testing a hundred potatoes (default: 100)
test: T2147483647 = 4294967295 m Very large (default: 4294967295 m)
test: X23 = 239471 s Negative T number (default: 239471 s)
+test: T30 = 50 s Testing range min (default: 50 s, range: [20 .. inf])
+test: T31 = 50 s Testing range max (default: 50 s, range: [0 .. 52])
+test: T32 = 50 s Testing range both (default: 50 s, range: [20 .. 52])
software: T1 = 30 m Write code (default: 30 m)
software: T2 = 20 ms Hit segfault (default: 20 ms)
software: T3 = 480 m Fix bugs (default: 480 m)
@@ -167,6 +176,32 @@
tdef_vty_test(config)# timer te T2 100
% Ambiguous command.
+tdef_vty_test(config)# timer test 30 40
+tdef_vty_test(config)# timer test 30 60
+tdef_vty_test(config)# timer test 30 10
+% Timer T30 value 10 is out of range [20 .. inf]
+
+tdef_vty_test(config)# timer test 31 40
+tdef_vty_test(config)# timer test 31 60
+% Timer T31 value 60 is out of range [0 .. 52]
+tdef_vty_test(config)# timer test 31 10
+
+tdef_vty_test(config)# timer test 32 40
+tdef_vty_test(config)# timer test 32 60
+% Timer T32 value 60 is out of range [20 .. 52]
+tdef_vty_test(config)# timer test 32 10
+% Timer T32 value 10 is out of range [20 .. 52]
+
+tdef_vty_test(config)# timer test
+test: T1 = 100 s Testing a hundred seconds (default: 100 s)
+test: T2 = 100 ms Testing a hundred milliseconds (default: 100 ms)
+test: T3 = 100 m Testing a hundred minutes (default: 100 m)
+test: T4 = 100 Testing a hundred potatoes (default: 100)
+test: T2147483647 = 4294967295 m Very large (default: 4294967295 m)
+test: X23 = 239471 s Negative T number (default: 239471 s)
+test: T30 = 60 s Testing range min (default: 50 s, range: [20 .. inf])
+test: T31 = 10 s Testing range max (default: 50 s, range: [0 .. 52])
+test: T32 = 40 s Testing range both (default: 50 s, range: [20 .. 52])
tdef_vty_test(config)# do show timer software
software: T1 = 30 m Write code (default: 30 m)
@@ -230,6 +265,9 @@
test: T4 = 100 Testing a hundred potatoes (default: 100)
test: T2147483647 = 4294967295 m Very large (default: 4294967295 m)
test: X23 = 239471 s Negative T number (default: 239471 s)
+test: T30 = 60 s Testing range min (default: 50 s, range: [20 .. inf])
+test: T31 = 10 s Testing range max (default: 50 s, range: [0 .. 52])
+test: T32 = 40 s Testing range both (default: 50 s, range: [20 .. 52])
software: T1 = 13 m Write code (default: 30 m)
software: T2 = 0 ms Hit segfault (default: 20 ms)
software: T3 = 23 m Fix bugs (default: 480 m)
@@ -245,6 +283,9 @@
test: T4 = 100 Testing a hundred potatoes (default: 100)
test: T2147483647 = 4294967295 m Very large (default: 4294967295 m)
test: X23 = 239471 s Negative T number (default: 239471 s)
+test: T30 = 60 s Testing range min (default: 50 s, range: [20 .. inf])
+test: T31 = 10 s Testing range max (default: 50 s, range: [0 .. 52])
+test: T32 = 40 s Testing range both (default: 50 s, range: [20 .. 52])
software: T1 = 13 m Write code (default: 30 m)
software: T2 = 0 ms Hit segfault (default: 20 ms)
software: T3 = 23 m Fix bugs (default: 480 m)
@@ -252,6 +293,9 @@
tdef_vty_test(config)# show running-config
... !timer
timer tea T3 32
+timer test T30 60
+timer test T31 10
+timer test T32 40
timer software T1 13
timer software T2 0
timer software T3 23
@@ -261,6 +305,9 @@
tdef_vty_test(config)# timer software T1 default
tdef_vty_test(config)# show running-config
... !timer
+timer test T30 60
+timer test T31 10
+timer test T32 40
timer software T2 0
timer software T3 23
... !timer
@@ -269,5 +316,8 @@
tdef_vty_test(config)# timer software 2 default
tdef_vty_test(config)# show running-config
... !timer
+timer test T30 60
+timer test T31 10
+timer test T32 40
timer software T3 23
... !timer
--
To view, visit https://gerrit.osmocom.org/c/libosmocore/+/15546
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Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Change-Id: I4661ac41c29a009a1d5fc57d87aaee6041c7d1b2
Gerrit-Change-Number: 15546
Gerrit-PatchSet: 8
Gerrit-Owner: pespin <pespin at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <axilirator at gmail.com>
Gerrit-Reviewer: laforge <laforge at osmocom.org>
Gerrit-Reviewer: neels <nhofmeyr at sysmocom.de>
Gerrit-Reviewer: osmith <osmith at sysmocom.de>
Gerrit-Reviewer: pespin <pespin at sysmocom.de>
Gerrit-MessageType: merged
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