China has developed many short range missiles based on short range MANPADS.
For example they have developed QW-3 based QW-2, they added a booster to QW-2 :
qw-2:

qw-3


They also have developed qw-19 based qw-18:
qw-18:

qw-19:


It is said qw-18L is longer diameter missile than qw-18 with longer range,Im not sure but according to image of launchers of qw-18 and qw18L, I guess relation of qw-18 and qw-18L is similar to relation of QW-2 and QW-3:
launcher of QW-18L and QW-18:

I think development of SAM's like qw-3 based Misagh-2 is good option for small warships of Iran, if they develop automatic multiple launcher linked to a fire control system