iscsi_tgt_node_redirect() updates redirect portal of the initial
portal iin a primary portal group for the target node.
Check if the specified portal group is a public portal group and is
mapped to the target node first.
Then if the passed IP address-port pair is NULL, clear the current
redirect setting. Public portal group and private portal group are
clearly separated and redirect portal must be chosen from a private
portal group. Hence this clear method is intuitive and simple.
If the passed IP address-port pair is not NULL, check if they are
valid, and are not in the specified portal group. Then update a
redirect portal of the portal group map.
Finally, send asynchronous logout request to all corresponding
initiators.
Besides, change allocating pg_map from malloc to calloc to initialize
redirect portal.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I79d826663f4c3d5a117add286f133adeb1ce07f5
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/3222
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2c8309e00e