|
To allow up to 64 options to be specified.
Add calculated logarithm constants for existing options.
Remove opt2name function to avoid recalculation.
Signed-off-by: Jacky Hu <hengqing.hu@xxxxxxxxx>
---
v6->v5:
1) split the patch into two:
- ipvsadm: convert options to unsigned long long
- ipvsadm: allow tunneling with gue encapsulation
2) do not mix static and dynamic allocation in fwd_tun_info
3) use correct nla_get/put function for tun_flags
4) fixed || style
5) use correct return value for parse_tun_type
v5->v4:
1) add checksum support for gue encapsulation
v4->v3:
1) removed changes to setsockopt interface
2) use correct nla_get/put function for tun_port
v3->v2:
1) added missing break statements to a few switch cases
v2->v1:
1) pass tun_type and tun_port as new optional parameters
instead of a few bits in existing conn_flags parameters
ipvsadm.c | 117 ++++++++++++++++++++++++++++++++----------------------
1 file changed, 69 insertions(+), 48 deletions(-)
diff --git a/ipvsadm.c b/ipvsadm.c
index 0cb2b68..9e7a448 100644
--- a/ipvsadm.c
+++ b/ipvsadm.c
@@ -189,6 +189,35 @@ static const char* cmdnames[] = {
#define OPT_SYNC_MAXLEN 0x08000000
#define NUMBER_OF_OPT 28
+#define OPTC_NUMERIC 0
+#define OPTC_CONNECTION 1
+#define OPTC_SERVICE 2
+#define OPTC_SCHEDULER 3
+#define OPTC_PERSISTENT 4
+#define OPTC_NETMASK 5
+#define OPTC_SERVER 6
+#define OPTC_FORWARD 7
+#define OPTC_WEIGHT 8
+#define OPTC_UTHRESHOLD 9
+#define OPTC_LTHRESHOLD 10
+#define OPTC_MCAST 11
+#define OPTC_TIMEOUT 12
+#define OPTC_DAEMON 13
+#define OPTC_STATS 14
+#define OPTC_RATE 15
+#define OPTC_THRESHOLDS 16
+#define OPTC_PERSISTENTCONN 17
+#define OPTC_NOSORT 18
+#define OPTC_SYNCID 19
+#define OPTC_EXACT 20
+#define OPTC_ONEPACKET 21
+#define OPTC_PERSISTENCE_ENGINE 22
+#define OPTC_SCHED_FLAGS 23
+#define OPTC_MCAST_GROUP 24
+#define OPTC_MCAST_PORT 25
+#define OPTC_MCAST_TTL 26
+#define OPTC_SYNC_MAXLEN 27
+
static const char* optnames[] = {
"numeric",
"connection",
@@ -320,9 +349,9 @@ static unsigned int parse_fwmark(char *buf);
static unsigned int parse_sched_flags(const char *sched, char *optarg);
/* check the options based on the commands_v_options table */
-static void generic_opt_check(int command, int options);
+static void generic_opt_check(int command, unsigned long long options);
static void set_command(int *cmd, const int newcmd);
-static void set_option(unsigned int *options, unsigned int option);
+static void set_option(unsigned long long *options, int optc);
static void tryhelp_exit(const char *program, const int exit_status);
static void usage_exit(const char *program, const int exit_status);
@@ -416,7 +445,7 @@ static char *protocol_name(int proto)
static int
parse_options(int argc, char **argv, struct ipvs_command_entry *ce,
- unsigned int *options, unsigned int *format)
+ unsigned long long *options, unsigned int *format)
{
int c, parse;
poptContext context;
@@ -575,7 +604,7 @@ parse_options(int argc, char **argv, struct
ipvs_command_entry *ce,
case 't':
case 'u':
case TAG_SCTP_SERVICE:
- set_option(options, OPT_SERVICE);
+ set_option(options, OPTC_SERVICE);
ce->svc.protocol = option_to_protocol(c);
parse = parse_service(optarg, &ce->svc);
if (!(parse & SERVICE_ADDR))
@@ -583,7 +612,7 @@ parse_options(int argc, char **argv, struct
ipvs_command_entry *ce,
"address[:port] specified");
break;
case 'f':
- set_option(options, OPT_SERVICE);
+ set_option(options, OPTC_SERVICE);
/*
* Set protocol to a sane values, even
* though it is not used
@@ -593,18 +622,18 @@ parse_options(int argc, char **argv, struct
ipvs_command_entry *ce,
ce->svc.fwmark = parse_fwmark(optarg);
break;
case 's':
- set_option(options, OPT_SCHEDULER);
+ set_option(options, OPTC_SCHEDULER);
strncpy(ce->svc.sched_name,
optarg, IP_VS_SCHEDNAME_MAXLEN - 1);
break;
case 'p':
- set_option(options, OPT_PERSISTENT);
+ set_option(options, OPTC_PERSISTENT);
ce->svc.flags |= IP_VS_SVC_F_PERSISTENT;
ce->svc.timeout =
parse_timeout(optarg, 1, MAX_TIMEOUT);
break;
case 'M':
- set_option(options, OPT_NETMASK);
+ set_option(options, OPTC_NETMASK);
if (ce->svc.af != AF_INET6) {
parse = parse_netmask(optarg, &ce->svc.netmask);
if (parse != 1)
@@ -617,7 +646,7 @@ parse_options(int argc, char **argv, struct
ipvs_command_entry *ce,
}
break;
case 'r':
- set_option(options, OPT_SERVER);
+ set_option(options, OPTC_SERVER);
ipvs_service_t t_dest = ce->svc;
parse = parse_service(optarg, &t_dest);
ce->dest.af = t_dest.af;
@@ -631,84 +660,84 @@ parse_options(int argc, char **argv, struct
ipvs_command_entry *ce,
ce->dest.port = ce->svc.port;
break;
case 'i':
- set_option(options, OPT_FORWARD);
+ set_option(options, OPTC_FORWARD);
ce->dest.conn_flags = IP_VS_CONN_F_TUNNEL;
break;
case 'g':
- set_option(options, OPT_FORWARD);
+ set_option(options, OPTC_FORWARD);
ce->dest.conn_flags = IP_VS_CONN_F_DROUTE;
break;
case 'm':
- set_option(options, OPT_FORWARD);
+ set_option(options, OPTC_FORWARD);
ce->dest.conn_flags = IP_VS_CONN_F_MASQ;
break;
case 'w':
- set_option(options, OPT_WEIGHT);
+ set_option(options, OPTC_WEIGHT);
if ((ce->dest.weight =
string_to_number(optarg, 0, 65535)) == -1)
fail(2, "illegal weight specified");
break;
case 'x':
- set_option(options, OPT_UTHRESHOLD);
+ set_option(options, OPTC_UTHRESHOLD);
if ((ce->dest.u_threshold =
string_to_number(optarg, 0, INT_MAX)) == -1)
fail(2, "illegal u_threshold specified");
break;
case 'y':
- set_option(options, OPT_LTHRESHOLD);
+ set_option(options, OPTC_LTHRESHOLD);
if ((ce->dest.l_threshold =
string_to_number(optarg, 0, INT_MAX)) == -1)
fail(2, "illegal l_threshold specified");
break;
case 'c':
- set_option(options, OPT_CONNECTION);
+ set_option(options, OPTC_CONNECTION);
break;
case 'n':
- set_option(options, OPT_NUMERIC);
+ set_option(options, OPTC_NUMERIC);
*format |= FMT_NUMERIC;
break;
case TAG_MCAST_INTERFACE:
- set_option(options, OPT_MCAST);
+ set_option(options, OPTC_MCAST);
strncpy(ce->daemon.mcast_ifn,
optarg, IP_VS_IFNAME_MAXLEN - 1);
break;
case 'I':
- set_option(options, OPT_SYNCID);
+ set_option(options, OPTC_SYNCID);
if ((ce->daemon.syncid =
string_to_number(optarg, 0, 255)) == -1)
fail(2, "illegal syncid specified");
break;
case TAG_TIMEOUT:
- set_option(options, OPT_TIMEOUT);
+ set_option(options, OPTC_TIMEOUT);
break;
case TAG_DAEMON:
- set_option(options, OPT_DAEMON);
+ set_option(options, OPTC_DAEMON);
break;
case TAG_STATS:
- set_option(options, OPT_STATS);
+ set_option(options, OPTC_STATS);
*format |= FMT_STATS;
break;
case TAG_RATE:
- set_option(options, OPT_RATE);
+ set_option(options, OPTC_RATE);
*format |= FMT_RATE;
break;
case TAG_THRESHOLDS:
- set_option(options, OPT_THRESHOLDS);
+ set_option(options, OPTC_THRESHOLDS);
*format |= FMT_THRESHOLDS;
break;
case TAG_PERSISTENTCONN:
- set_option(options, OPT_PERSISTENTCONN);
+ set_option(options, OPTC_PERSISTENTCONN);
*format |= FMT_PERSISTENTCONN;
break;
case TAG_NO_SORT:
- set_option(options, OPT_NOSORT );
+ set_option(options, OPTC_NOSORT);
*format |= FMT_NOSORT;
break;
case TAG_SORT:
/* Sort is the default, this is a no-op for
compatibility */
break;
case 'X':
- set_option(options, OPT_EXACT);
+ set_option(options, OPTC_EXACT);
*format |= FMT_EXACT;
break;
case '6':
@@ -720,20 +749,20 @@ parse_options(int argc, char **argv, struct
ipvs_command_entry *ce,
}
break;
case 'o':
- set_option(options, OPT_ONEPACKET);
+ set_option(options, OPTC_ONEPACKET);
ce->svc.flags |= IP_VS_SVC_F_ONEPACKET;
break;
case TAG_PERSISTENCE_ENGINE:
- set_option(options, OPT_PERSISTENCE_ENGINE);
+ set_option(options, OPTC_PERSISTENCE_ENGINE);
strncpy(ce->svc.pe_name, optarg, IP_VS_PENAME_MAXLEN);
break;
case 'b':
- set_option(options, OPT_SCHED_FLAGS);
+ set_option(options, OPTC_SCHED_FLAGS);
snprintf(sched_flags_arg, sizeof(sched_flags_arg),
"%s", optarg);
break;
case TAG_MCAST_GROUP:
- set_option(options, OPT_MCAST_GROUP);
+ set_option(options, OPTC_MCAST_GROUP);
if (strchr(optarg, ':')) {
if (inet_pton(AF_INET6, optarg,
&ce->daemon.mcast_group) <= 0 ||
@@ -753,21 +782,21 @@ parse_options(int argc, char **argv, struct
ipvs_command_entry *ce,
}
break;
case TAG_MCAST_PORT:
- set_option(options, OPT_MCAST_PORT);
+ set_option(options, OPTC_MCAST_PORT);
parse = string_to_number(optarg, 1, 65535);
if (parse == -1)
fail(2, "illegal mcast-port specified");
ce->daemon.mcast_port = parse;
break;
case TAG_MCAST_TTL:
- set_option(options, OPT_MCAST_TTL);
+ set_option(options, OPTC_MCAST_TTL);
parse = string_to_number(optarg, 1, 255);
if (parse == -1)
fail(2, "illegal mcast-ttl specified");
ce->daemon.mcast_ttl = parse;
break;
case TAG_SYNC_MAXLEN:
- set_option(options, OPT_SYNC_MAXLEN);
+ set_option(options, OPTC_SYNC_MAXLEN);
parse = string_to_number(optarg, 1, 65535 - 20 - 8);
if (parse == -1)
fail(2, "illegal sync-maxlen specified");
@@ -845,7 +874,7 @@ static int restore_table(int argc, char **argv, int
reading_stdin)
static int process_options(int argc, char **argv, int reading_stdin)
{
struct ipvs_command_entry ce;
- unsigned int options = OPT_NONE;
+ unsigned long long options = OPT_NONE;
unsigned int format = FMT_NONE;
int result = 0;
@@ -1164,7 +1193,7 @@ static unsigned int parse_sched_flags(const char *sched,
char *optarg)
}
static void
-generic_opt_check(int command, int options)
+generic_opt_check(int command, unsigned long long options)
{
int i, j;
int last = 0, count = 0;
@@ -1173,7 +1202,7 @@ generic_opt_check(int command, int options)
i = command - CMD_NONE -1;
for (j = 0; j < NUMBER_OF_OPT; j++) {
- if (!(options & (1<<j))) {
+ if (!(options & (1ULL<<j))) {
if (commands_v_options[i][j] == '+')
fail(2, "You need to supply the '%s' "
"option for the '%s' command",
@@ -1197,15 +1226,6 @@ generic_opt_check(int command, int options)
}
}
-static inline const char *
-opt2name(int option)
-{
- const char **ptr;
- for (ptr = optnames; option > 1; option >>= 1, ptr++);
-
- return *ptr;
-}
-
static void
set_command(int *cmd, const int newcmd)
{
@@ -1215,10 +1235,11 @@ set_command(int *cmd, const int newcmd)
}
static void
-set_option(unsigned int *options, unsigned int option)
+set_option(unsigned long long *options, int optc)
{
+ unsigned long long option = 1ULL<<optc;
if (*options & option)
- fail(2, "multiple '%s' options specified", opt2name(option));
+ fail(2, "multiple '%s' options specified", optnames[optc]);
*options |= option;
}
--
2.21.0
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