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{pktgen, xfrm} Using "pgset spi xxx" to spedifiy SA for a given flow 

User could set specific SPI value to arm pktgen flow with IPsec
transformation, instead of looking up SA by sadr/daddr. The reaseon
to do so is because current state lookup scheme is both slow and, most
important of all, in fact pktgen doesn't need to match any SA state
addresses information, all it needs is the SA transfromation shell to
do the encapuslation.

And this option also provide user an alternative to using pktgen
test existing SA without creating new ones.

Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Fan Du 2014-01-03 11:18:30 +08:00 committed by Steffen Klassert
parent 4ae770bf58
commit de4aee7d69
1 changed files with 12 additions and 0 deletions
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12
net/core/pktgen.c
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@ -389,6 +389,7 @@ struct pktgen_dev {
#ifdef CONFIG_XFRM
__u8 ipsmode; /* IPSEC mode (config) */
__u8 ipsproto; /* IPSEC type (config) */
__u32 spi;
#endif
char result[512];
};
@ -1477,6 +1478,17 @@ static ssize_t pktgen_if_write(struct file *file,
return count;
}
if (!strcmp(name, "spi")) {
len = num_arg(&user_buffer[i], 10, &value);
if (len < 0)
return len;
i += len;
pkt_dev->spi = value;
sprintf(pg_result, "OK: spi=%u", pkt_dev->spi);
return count;
}
if (!strcmp(name, "flowlen")) {
len = num_arg(&user_buffer[i], 10, &value);
if (len < 0)